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					             National Research   Conseil national
             Council Canada      de recherches Canada

             Institute for       Institut de
             Research in         recherche en
             Construction        construction


                                                                                CCMC 12416-R



CCMC                   EVALUATION
                       REPORT
                                                                               DIVISION
                                                                                     Issued
                                                                           Re-evaluated
                                                                      Re-evaluation due
                                                                                                         07240
                                                                                                  1992-08-12
                                                                                                  2008-07-23
                                                                                                  2010-08-12
                                                                       Re-Evaluation in Progress
Sto Premier/Sto Classic/Sto Essence
Sto Premier includes: Sto Premier NC, Sto Premier NExT®, Sto Premier
                      NExT® NC, Sto Premier Signature, Sto Premier
                      Signature NC, Sto Premier Signature PER, and Sto
                      Premier Signature PER NC
Sto Classic includes: Sto Classic NC, Sto Classic NExT®, Sto Classic
                      NExT® NC, Sto Classic Signature, Sto Classic
                      Signature NC, Sto Classic Signature PER, and Sto
                      Classic Signature PER NC
Sto Essence includes: Sto Essence NExT®, Sto Essence Signature



Sto Corp.                                       This Report is provided without representation, warranty, or
                                                guarantee of any kind, expressed or implied, and the National
3800 Camp Creek Parkway                         Research Council of Canada (NRC) provides no endorsement
                                                for any evaluated material, product, system or service
Building 1400, Suite 120                        described herein.
Atlanta, Georgia                                NRC has evaluated the material, product, system or service
                                                described herein only for those characteristics stated herein.
USA 30331                                       The information and opinions in this Report are directed to
                                                those who have the appropriate degree of experience to use
                                                and apply its contents.
Tel.: (800) 628-2738-4215                       NRC accepts no responsibility whatsoever arising in any way
                                                from any and all use or reliance on the information contained in
Fax: (404) 346-7422                             this Report. NRC is not undertaking to render professional or
                                                other services for or on behalf of any person or entity nor to
                                                perform any duty owed by any person or entity to another
www. stocorp.com                                person or entity.




                                          -1-
Plants:    251 Quality Lane                                         Signature NC, Sto Classic Signature PER
           Rutland, Vermont                                         NC,” and
           USA 05701
                                                            This opinion is based on CCMC’s
                                                            evaluation of the technical evidence in
           6504 West Northern Ave.
                                                            Section 5.0 provided by the Report holder.
           Glendale, Arizona
           USA 85301                                        Ruling No. 95-03-22 (12416-R) authorizing the use
                                                            of this product in Ontario, subject to the terms and
           6175 Riverside Drive S.W.                        conditions contained in the Ruling, was made by
           Atlanta, Georgia                                 the Minister of Municipal Affairs and Housing on
           USA 30331                                        2 March, 1995 (revised 15 May, 1998) pursuant to
                                                            s.29 of the Building Code Act, 1992 (see Ruling for
                                                            terms and conditions). This Ruling is subject to
1. Purpose of Evaluation                                    periodic revisions and updates.
The proponent sought confirmation from the
Canadian Construction Materials Centre (CCMC)               Canada Mortgage and Housing Corporation
that “Sto Premier, Sto Classic, Sto Essence”                (CMHC) permits the use of this product in
exterior insulation and finish systems (EIFS) can           construction financed or insured under the
serve as cladding systems that are designed to              National Housing Act.
provide additional thermal insulation and a
weather barrier for new and retrofit construction,
in compliance with the intent of the National               3. Description
Building Code of Canada (NBC) 2005.                         “Sto Premier, Sto Classic, Sto Essence” are exterior
                                                            insulation and finish systems (EIFS), either
                                                            assembled in panels under factory-controlled
2. Opinion
                                                            conditions or field-applied. The systems are
It is the opinion of the Canadian Construction
                                                            composed mainly of the following key
Materials Centre (CCMC) that “Sto Premier, Sto
                                                            components:
Classic, Sto Essence” when used as cladding
                                                            – a water penetration barrier coating,
systems in accordance with the conditions and
                                                            – an adhesive attachment,
limitations stated in Section 3 of this Report,
                                                            – an insulation board, and
comply with the NBC 2005:                                                                 (1)
                                                            – a coating system (lamina ).
•   Clause 1.2.1.1.(1)(b), Division A, as an
                                                            (1) The lamina refers to all the coats (base coats and
    alternative solution that achieves at least the
                                                                finish coat) applied to the outer face of the
    minimum level of performance required by
                                                                insulation board together with the glass-fibre mesh
    Division B in the areas defined by the
                                                                reinforcement.
    objectives and functional statements attributed
    to the following applicable acceptable
                                                            The EIFS, as described, are installed over a specific
    solutions:
                                                            structural substrate that is specified in the scope of
    ! Sentence 9.27.1.1.(5),
                                                            this Evaluation Report.
    ! Sentence 3.1.5.5.(1) when using “Sto
                                     ®
         Premier, Sto Premier NExT , Sto Premier
                                                            Sto EIFS and their installation details are
         Signature, Sto Premier Signature PER, Sto
                                   ®                        illustrated in Figures 1 and 2.
         Classic, Sto Classic NExT , Sto Classic
         Signature, Sto Classic Signature PER, Sto
                                     ®                      The following is a detailed description of the
         Essence, Sto Essence NExT ,”
                                                            different components and systems:
    ! Clause 3.2.3.8.(1)(b) when using “Sto
                                          ®
         Premier NC, Sto Premier NExT NC,
                                                            Substrate
         Sto Premier Signature NC, Sto Classic NC,
                           ®                                The substrate can be brick, masonry, monolithic
         Sto Classic NExT NC, Sto Classic
                                                            concrete walls, cementitious panels, glass-mat-
                                                            surfaced gypsum boards, oriented strandboard


                                                      -2-
                                                                                    (4)
(OSB) and/or plywood over wood or steel                           StoGuard®
framing.                                                          The StoGuard® coating system consists of two
                                                                                           ®
                                                                  components: Sto Gold Fill with StoGuard® Mesh
                                                                                                        ®
Gaps between the sheathing boards of framed                       or Sto Detail Mesh and Sto Gold Coat , which are
walls shall not exceed 3.2 mm.                                    fluid-applied over approved substrates to provide
                                                                  a monolithic air and moisture barrier.
The continuity of the second plane of protection
                                                                                      ®
across joints and junctions at openings,                          Sto Gold Fill is a water-based, flexible trowel-
penetrations and expansion joints shall be                        applied joint compound that bridges sheathing
maintained through accessories (self-adhering                     joints and protects rough openings.
membranes, etc.) as specified by the manufacturer,
                                                                                          ®
prior to the installation of these systems.                       Sto Gold Coat is a ready-mixed, water-based
                                                                  flexible waterproof coating for direct application
                                               (2)
Water Penetration Barrier (WPB) Coating                           to vertical above-grade wall sheathing and
(2) The water penetration barrier (WPB) is a coating              concrete masonry.
    that is installed to provide a continuous membrane
                                                                                              ®
    over water-sensitive substrate and around                     Step 1: Sto Gold Fill shall be sprayed or
    penetrations and openings to provide, along with              trowelled into the panel joints and embedded with
    other built-in features, the second line of defence           Sto Detail Mesh or, alternatively, StoGuard® Mesh
                                                                                                                  ®
    against water infiltration reaching the structure.            is applied to the panel joints and Sto Gold Fill is
    In order to provide the intended level of protection          sprayed or trowelled over it.
    against water infiltration, the water penetration
                                                                                                       ®
    barrier shall be installed in a two-coat application          Step 2: Two-coats of Sto Gold Coat is applied
    in which the first coat shall have sufficient time to         over the entire surface by spray, brush or roller.
    cure before the second coat is applied. The water             Using any of the three afore-mentioned methods
                                                                                                ®
    penetration barrier shall be applied in accordance            of application, Sto Gold Coat must deliver a wet
    with Sto Corp.’s details and specifications available         thickness of 0.25 mm. StoGuard® Mesh is applied
    at www. stocorp.com.                                          as a continuous layer over the substrate and
                                                                  wrapped around framing and around penetrations
Sto Flexyl                                                        as per Sto Corp.’s details and specifications.
A grey, polymer-modified waterproof coating that
is supplied in 20-kg pails, and mixed on site with                (4) “Sto Premier,” “Sto Classic” and “Sto Essence”
50% by weight, Type 10 Portland cement. Sto                           installed over StoGuard® are designated Sto
                                                                             ®
Flexyl is applied in a continuous layer over the                      NExT systems.
substrate and wrapped around the framing and
                                                                              (5)
penetrations to achieve a minimum wet thickness                   Adhesive
of 1.5 mm.                                                        (5)    Adhesives are products for bonding the
                                                                         insulation to the substrate coated with the
                      (3)
Sto Watertight Coat                                                      WPB. In general they are available in the
A two-component, polymer-modified waterproof                             following forms: a dry powder mix requiring
coating that is supplied in 20-kg pails, mixed on                        the addition of water on site, or a wet paste
site with 50% by weight of wet, grey or white                            that does not require any additives.
                                            (3)
powder components. Sto Watertight Coat is                                Certain adhesives are also used as base coats,
applied in a continuous layer over the substrate                         as in the case of “Sto Primer/Adhesive” and
and wrapped around the framing and                                       “Sto Primer/Adhesive-B”. Consequently, the
penetrations to achieve a minimum wet thickness                          description of “Sto Primer/Adhesive” and “Sto
of 1.5 mm.                                                               Primer/Adhesive-B” has been placed in this
                                                                         section.
(3) “Sto Premier”, “Sto Classic” and “Sto Essence”
                                                                          ®
    EIFS installed over Sto Flexyl or Sto Watertight              Sto BTS -B
    Coat are designated Sto Signature systems.                    A polymer-based adhesive supplied in a 27-kg
                                                                  bag. The material is mixed with 6.5 L to 8.5 L of



                                                            -3-
                                    ®
clean water per 27-kg bag. Sto BTS -B is applied             surface of the Sto Corp. insulation board using the
as an adhesive to the surface of the Sto insulation          appropriate notched trowel. For smooth
board with the appropriate notched trowel. For               substrates such as sheathing, use a trowel with
smooth substrates such as sheathing, use a trowel            U-shaped notches 13 mm x 13 mm, 50 mm apart.
with U-shaped notches 13 mm x 13 mm, 50 mm                   For uneven substrates such as some concrete
apart. For uneven substrates such as some                    masonry, use a trowel with square notches 16 mm
concrete masonry, use a trowel with square                   x 16 mm, 25 mm apart, or directly to the substrate
notches 16 mm x 16 mm, 25 mm apart.                          using Sto Corp.’s M-8 spray pump and trowel
                                                             with the appropriate notched trowel as noted
        ®
Sto BTS Plus                                                 above.
A one-component, polymer-modified, cement-
based dry powder material used as an adhesive,               Sto Primer/Adhesive-B
supplied in a 21.3-kg bag. The material is mixed             A one-component, polymer-modified, cement-
with 4.7 L to 6.2 L of clean water per 21.3-kg bag.          based, dry powder material used as an adhesive,
        ®
Sto BTS Plus is applied as an adhesive to the                supplied in a 23-kg bag. The material is mixed
surface of the Sto insulation board using the                with 4.7 L to 6.2 L of clean water per 23-kg bag.
appropriate notched trowel. For smooth                       Sto Primer/Adhesive-B is applied as an adhesive
substrates such as sheathing, use a trowel with              to the surface of the Sto Corp. insulation board
U-shaped notches 13 mm x 13 mm, 50 mm apart.                 using the appropriate notched trowel.
For uneven substrates such as some concrete                  For smooth substrates such as sheathing, use a
masonry, use a trowel with square notches                    trowel with U-shaped notches 13 mm x 13 mm,
16 mm x 16 mm, 25 mm apart.                                  50 mm apart. For uneven substrates such as some
                                                             concrete masonry, use a trowel with square
        ®
Sto BTS Silo                                                 notches 16 mm x 16 mm, 25 mm apart, or directly
A one-component, polymer-modified, cement-                   to the substrate using Sto Corp.’s M-8 spray pump
based, dry powder material used as an adhesive.              and trowel with the appropriate notched trowel as
It is specially designed for use with the Sto Silo           noted above.
system equipment, which mixes, pumps and
                 ®
sprays Sto BTS Silo onto the substrate to an                 Insulation
approximate thickness of 6 mm. The adhesive                  Sto Insulation Board is manufactured and
ribbons are formed using the appropriate notched             packaged by a Sto Corp.-qualified and approved
trowel.                                                      manufacturer/molder. The expanded polystyrene
                                                             foam insulation boards are aged by air for a
        ®
Sto BTS NC                                                   minimum of five weeks or kiln-dried.
A noncombustible, one-component, polymer-
modified, cement-based, dry powder material                  The expanded polystyrene (EPS) insulation board
used as an adhesive, supplied in a 27-kg bag. The            shall conform to the following:
material is mixed with 5.7 L to 7.6 L of clean water         • CAN/ULC-S701-97, “Thermal Insulation
                       ®
per 27-kg bag. Sto BTS NC is applied as an                           Polystyrene, Boards and Pipe Covering”;
adhesive to the surface of the Sto Corp. insulation          • minimum board thickness of 19 mm;
board using the appropriate notched trowel.                  • maximum board thickness:
For smooth substrates such as sheathing, use a                   – as designed, when used in combustible
trowel with U-shaped notches 13 mm x 13 mm,                          construction, and
50 mm apart. For uneven substrates such as some                  – of 102 mm, when used in noncombustible
concrete masonry, use a trowel with square                           construction meeting NBC 2005,
notches 16 mm x 16 mm, 25 mm apart.                                  Division B, Article 3.1.5.5. for Sto Premier,
                                                                                        ®
                                                                     Sto Premier NExT , Sto Premier Signature,
Sto Primer/Adhesive                                                  Sto Premier Signature PER, Sto Classic, Sto
                                                                                   ®
A two-component, acrylic-based material to be                        Classic NExT , Sto Classic Signature, Sto
combined with 50% by weight, Type 10 Portland                        Classic Signature PER, Sto Essence, Sto
                                                                                    ®
cement. The material is supplied in 19-L pails. Sto                  Essence NExT , and Sto Essence Signature,
Primer/Adhesive is applied as an adhesive to the                     and



                                                       -4-
      –   of 140 mm, when used in noncombustible            Sto RFP Base Coat
          construction meeting NBC 2005,                    A 100% synthetic acrylic-based plaster base coat,
          Division B, Article 3.2.3.7. for Sto              factory-mixed, ready to use, supplied in 30-kg
                                            ®
          Premier NC, Sto Premier NExT NC, Sto              pails. Sto RFP is applied to a uniform thickness of
          Premier Signature NC, Sto Premier                 not less than 1.6 mm to the entire surface of the Sto
          Signature PER NC, Sto Classic NC, Sto             Corp. insulation board.
                        ®
          Classic NExT NC, Sto Classic
          Signature NC, and Sto Classic Signature           (6) The thickness of the base coat required depends on
          PER NC;                                               the number of layers and the type of reinforcing
•     maximum board size of 600 mm x 1 200 mm;                  mesh used as specified below. The base coat
•     average density of 16 kg/m3, and                          thickness needs to be thicker when more than one
•     flame-spread rating between 25 and 500 as per             layer of reinforcing mesh is incorporated into the
      CAN/ULC-S102-03, “Test for Surface Burning                lamina. Install a base coat approximately 3 mm
      Characteristics of Building Materials and                 thick, then fully embed the mesh and trowel off any
      Assemblies.”                                              extra material. The mesh colour should not be
                                                                visible.
Coating System (Lamina)
                                                            Sto Primer/Adhesive and Sto Primer/Adhesive-B
Sto Mesh                                                    As described in the section of adhesives
An alkali-resistant interwoven glass-fibre                  Sto Primer/Adhesive and Sto Primer/Adhesive-B
                                                2
reinforcing fabric, having a minimum 142 g/m                are applied using Sto Corp.’s M-8 spray pump or
nominal weight, that is used with the Sto Corp.             manually applied using a trowel to a uniform
base coat and Sto Flexyl. The mesh is yellow or             thickness of not less 3 mm.
where noted, -white, is available in rolls 240 mm
wide and 970 mm wide, and is available in six               Primer
grades of strength.                                          Sto Primer
− Sto Detail Mesh:
                                 2
                         142 g/m , 240 mm wide              A water-based acrylic primer that provides
− Sto Mesh:                                                 uniform substrate absorption and finish colour
                                 2
                         153 g/m , 970 mm wide
− Sto 6 oz Mesh:                                            and is supplied in 19-L pails. Sto Primer is applied
                                 2
                         203 g/m , 970 mm wide
− Sto Intermediate: 373 g/m , 970 mm wide
                                 2                          to the dry base coat by brush, roller or spray,
− Sto Armor Mat:
                                 2
                         508 g/m , 970 mm wide              providing approximately a 0.06-mm wet thickness.
− Sto Armor Mat XX : 678 g/m , 970 mm wide
                       *         2

                                                            Sto Primer Creativ
Base Coat
              (6)                                           A water-based acrylic primer with enhanced UV
         ®
Sto BTS -B Adhesive/Base Coat                               resistance for use with finishes that leave portions
A polymer-based, adhesive and base coat supplied            of the primer exposed, such as Sto Brick Creativ.
in a 27-kg bag. The material is mixed with 6.5 L to         Sto Primer Creativ is applied to the dry base coat
                                             ®
8.5 L of clean water per 27-kg bag. Sto BTS -B is           by brush, roller or spray providing approximately
applied to a uniform thickness of not less than             a 0.06-mm wet thickness.
1.6 mm to the entire surface of the Sto insulation
board with a stainless steel trowel.                        Finish Coat
                                                            StoSilco® Lit
          ®
Sto BTS NC Adhesive/Base Coat                               A ready-mix, acrylic-based, silicone-enhanced,
A noncombustible, polymer-based adhesive and                textured emulsion finish coat, supplied in 32-kg
base coat supplied in a 27-kg bag. The material is          pails. It is factory-tinted to the desired colour.
mixed with 6.5 L to 8.5 L of clean water per 27-kg          StoSilco® Lit is applied by a stainless steel trowel
              ®
bag. Sto BTS NC is applied to a uniform                     or is spray-applied to a thickness of 1.0 mm to
thickness of not less than 1.6 mm to the entire             3.0 mm, depending on the texture selected.
surface of the Sto Corp. insulation board.                           ®
                                                            Stolit

*
    Sto Armor Mat XX may be white.


                                                      -5-
A ready-mix, acrylic-based, textured emulsion                   Insulation:   a 25-mm- to 102-mm-thick, rigid, EPS
finish coat, supplied in 32-kg pails. It is factory-                          board adhered to the substrate using
tinted to the desired colour.                                                 one of the Sto Corp. adhesives listed.
      ®
Stolit is applied by a stainless steel trowel or is
spray-applied to a thickness of 1.0 mm to 3.0 mm,               Adhesive, one of:
                                                                                   ®
depending on the texture selected.                                          Sto BTS -B
                                                                                   ®
                                                                            Sto BTS Plus
                                                                                   ®
Sto EIFS Systems’ Elements                                                  Sto BTS Silo
                                                                                      ®
                                                                Base coat:    Sto BTS -B
                                                                                     ®
“Sto Premier” Elements:                                                       Sto BTS Plus
         (7)                                                                         ®
Substrate : a 12.7-mm rigid, glass-mat surfaced                               Sto BTS Silo
             gypsum sheathing board                                           Sto RFP
             mechanically fastened with screws to
             18-gauge steel stud framing system.                Primer and finish coat as listed under
                                                                “Sto Premier” elements.
(7) The systems can be installed on different types of
    substrates. The present system description reflects         Sto Premier NC
    the system installation in the durability under             Insulation: a 25-mm- to 140-mm-thick, rigid, EPS
    climatic changes test of Table 5.1.3.                                    board adhered to the substrate using
                                                                             the Sto Corp. adhesive listed.
Water penetration barrier (WPB) coating, one of:
                                                                                      ®
            StoGuard®                                           Adhesive:     Sto BTS NC
            Sto Flexyl
                                                                                      ®
            Sto Watertight Coat                                 Base coat:    Sto BTS NC
            If the substrate is a recognized water
            penetration barrier (e.g. concrete),                Primer and finish coat as listed under “Sto
            additional protection is not required.              Premier” elements.
                                                                                  ®
Insulation:   a 25-mm- to 102-mm-thick, rigid, EPS              Sto Premier NExT
              board adhered to the substrate using              WPB:          StoGuard® consisting of StoGuard®
              one of the Sto Corp. adhesives listed.                          Mesh or Sto Detail Mesh, Sto Gold
                                                                                  ®                   ®
                                                                              Fill and Sto Gold Coat applied with
Adhesive, one of:                                                             a trowel, brush or roller over the
                   ®
            Sto BTS -B                                                        substrate.
                   ®
            Sto BTS Plus                                        Adhesive/base coat, primer and finish coat as
                   ®
            Sto BTS Silo                                        listed under “Sto Premier” elements.
                                                                                  ®
Base coat, one of:                                              Sto Premier NExT NC
                    ®
             Sto BTS -B                                         WPB:         StoGuard® consisting of StoGuard®
                    ®
             Sto BTS Plus                                                    Mesh or Sto Detail Mesh, Sto Gold
                    ®                                                            ®                   ®
             Sto BTS Silo                                                    Fill and Sto Gold Coat applied with
             Sto RFP                                                         a trowel, brush or roller over the
                                                                             substrate.
Primer (optional), one of:
             brush-, roller- or spray-applied                   Insulation:   a 25-mm- to 140-mm-thick, rigid, EPS
             Sto Primer or Sto Primer Creativ                                 board adhered to the substrate using
                                                                              the Sto Corp. adhesive listed.
Finish coat: StoSilco® Lit
                                                                                      ®
                                                                Adhesive:     Sto BTS NC
Sto Premier
                                                                                      ®
                                                                Base coat:    Sto BTS NC



                                                          -6-
Primer and finish coat as listed under                      Insulation:    a 25-mm- to 140-mm-thick, rigid, EPS
“Sto Premier“ elements.                                                    board adhered to the substrate using
                                                                           the Sto Corp. adhesive listed.
Sto Premier Signature
                                                                                    ®
WPB:         Sto Flexyl or Sto Watertight Coat,             Adhesive:      Sto BTS NC
             trowel-applied to the substrate to a
                                                                                    ®
             minimum wet thickness of 1.5 mm,               Base coat:     Sto BTS NC
             embedded with Sto Mesh.
                                                            Primer and finish coat as listed under
Insulation:   a 25-mm- to 102-mm-thick, rigid, EPS          “Sto Premier” elements.
              board adhered to the substrate using
              one of the Sto Corp. adhesives listed         “Sto Premier Signature PER NC” is installed with
                                                            adequate venting and compartmenting, as per Sto
Adhesive/base coat, insulation, primer and finish           Corp.’s specifications and details, to provide a
coat as listed under “Sto Premier” elements.                pressure equalizing response within the cladding.

Sto Premier Signature NC                                    “Sto Classic” Elements:
WPB:         Sto Flexyl or Sto Watertight Coat,             Substrate: a 12.7-mm rigid, glass-mat surfaced
             trowel-applied to the substrate to a                        gypsum sheathing board
             minimum wet thickness of 1.5 mm,                            mechanically fastened with screws to
             embedded with Sto Mesh.                                     an 18-gauge steel stud framing
                                                                         system (see note 7).
Insulation:   a 25-mm- to 140-mm-thick, rigid, EPS
              board adhered to the substrate using          WPB, one of:
              the Sto Corp. adhesive listed.                               StoGuard®
                                                                           Sto Flexyl
                     ®
Adhesive:     Sto BTS NC                                                   Sto Watertight Coat
                                                                           If the substrate is a recognized water
                     ®
Base coat:    Sto BTS NC                                                   penetration barrier (e.g. concrete),
                                                                           additional protection is not required.
Primer and finish coat as listed under
“Sto Premier” elements.                                     Insulation:    a 25-mm- to 102-mm-thick, rigid, EPS
                                                                           board adhered to the substrate using
Sto Premier Signature PER                                                  one of the Sto Corp. adhesives listed.
WPB:           Sto Flexyl or Sto Watertight Coat,
               trowel-applied to the substrate to a         Adhesive, one of:
                                                                               ®
               minimum wet thickness of 1.5 mm,                         Sto BTS -B
                                                                               ®
               embedded with Sto Mesh.                                  Sto BTS Plus
                                                                               ®
Adhesive/base coat, insulation, primer and finish                       Sto BTS Silo
coat as listed under “Sto Premier” elements.
                                                            Base coat, one of:
                                                                                ®
“Sto Premier Signature PER” is installed with                            Sto BTS -B
                                                                                ®
adequate venting and compartmenting, as per Sto                          Sto BTS Plus
                                                                                ®
Corp.’s specifications and details, to provide a                         Sto BTS Silo
pressure equalizing response within the cladding.                        Sto RFP

Sto Premier Signature PER-NC                                Primer (optional):
WPB:         Sto Flexyl or Sto Watertight Coat,                          brush-, roller- or spray-applied
             trowel-applied to the substrate to a                        Sto Primer or Sto Primer Creativ.
             minimum wet thickness of 1.5-mm,
                                                                                ®
             embedded with Sto Mesh.                        Finish coat: Stolit



                                                      -7-
                                                                                  ®
Sto Classic                                                  Base coat:    Sto BTS NC
Insulation: a 25-mm- to 102-mm-thick, rigid, EPS
            board adhered to the substrate using             Other components as listed under “Sto Classic”
            one of the Sto Corp. adhesives listed.           elements.
                     ®
Adhesive:     Sto BTS -B                                     Sto Classic Signature
                     ®
              Sto BTS Plus                                   WPB:          Sto Flexyl or Sto Watertight Coat,
                     ®
              Sto BTS Silo                                                 trowel-applied to the substrate to a
                                                                           minimum wet thickness of 1.5-mm,
                     ®
Base coat:    Sto BTS -B                                                   embedded with Sto Mesh.
                     ®
              Sto BTS Plus
                     ®
              Sto BTS Silo                                   Adhesive/base coat, insulation, primer and finish
              Sto RFP                                        coat as listed under “Sto Classic” elements.

Primer and finish coat as listed under                       Sto Classic Signature NC
“Sto Classic” elements.                                      WPB:          Sto Flexyl or Sto Watertight Coat,
                                                                           trowel-applied to the substrate to a
Sto Classic NC                                                             minimum wet thickness of 1.5-mm
Insulation: a 25-mm- to 140-mm-thick, rigid, EPS                           embedded with Sto Mesh.
             board adhered to the substrate using
             the Sto Corp. adhesive listed.                  Insulation:   a 25-mm- to 140-mm-thick, rigid, EPS
                                                                           board adhered to the substrate using
                     ®
Adhesive:     Sto BTS NC                                                   the Sto adhesive listed.
                     ®                                                            ®
Base coat:    Sto BTS NC                                     Adhesive:     Sto BTS NC
                                                                                  ®
Primer and finish coat as listed under                       Base coat:    Sto BTS NC
“Sto Classic” elements.
                                                             Primer and finish coat as listed under
                 ®
Sto Classic NExT                                             “Sto Classic” elements.
WPB:         StoGuard® waterproofing/air barrier
             consisting of StoGuard® Mesh, Sto               Sto Classic Signature PER
                      ®                    ®
             Gold Fill and Sto Gold Coat applied             WPB:          Sto Flexyl or Sto Watertight Coat,
             with a trowel, brush or roller over the                       trowel-applied to the substrate to a
             substrate.                                                    minimum wet thickness of 1.5 mm,
                                                                           embedded with Sto Mesh.
Adhesive/base coat, insulation, primer and finish
coat as listed under “Sto Classic” elements.                 Adhesive/base coat, insulation, primer and finish
                                                             coat as listed under “Sto Classic” elements.
                 ®
Sto Classic NExT NC                                          “Sto Classic Signature PER” is installed with
WPB:         StoGuard® waterproofing/air                     adequate venting and compartmenting, as per Sto
             barrier consisting of StoGuard®                 Corp.’s specifications and details, to provide a
                                 ®
             Mesh, Sto Gold Fill and Sto Gold                pressure equalizing response within the cladding.
                  ®
             Coat applied with a trowel, brush or
             roller over the substrate.                      Sto Classic Signature PER NC
                                                             WPB:          Sto Flexyl or Sto Watertight Coat,
Insulation:   a 25-mm- to 140-mm-thick, rigid, EPS                         trowel-applied to the substrate to a
              board adhered to the substrate using                         minimum wet thickness of 1.5 mm,
              the Sto Corp. adhesive listed.                               embedded with Sto Mesh.
                     ®
Adhesive:     Sto BTS NC



                                                       -8-
Insulation:   a 25-mm- to 140-mm-thick, rigid, EPS                        Sto Primer/Adhesive
              board adhered to the substrate using
              the Sto adhesive listed.                       Primer and finish coat as listed under “Sto
                                                             Classic” elements.
                     ®
Adhesive:     Sto BTS NC
                                                                               ®
                                                             Sto Essence NExT
                     ®
Base coat:    Sto BTS NC                                     WPB:         StoGuard® waterproofing/air
                                                                          barrier consisting of StoGuard®
                                                                                              ®
Primer and finish coat as listed under                                    Mesh, Sto Gold Fill and Sto Gold
                                                                               ®
“Sto Classic” elements.                                                   Coat applied with a trowel, brush or
                                                                          roller over the substrate.
“Sto Classic Signature PER NC” is installed with
adequate venting and compartmenting, as per Sto              Adhesive/base coat, primer and finish coat as
Corp.’s specifications and details, to provide a             listed under “Sto Essence” elements.
pressure equalizing response within the cladding.
                                                             Sto Essence Signature:
“Sto Essence” Elements:                                      WPB:         Sto Flexyl or Sto Watertight Coat,
Substrate: a 12.7-mm rigid, glass-mat surfaced                            trowel-applied to the substrate to a
            gypsum sheathing board                                        minimum wet thickness of 1.5 mm,
            mechanically fastened with screws to                          embedded with Sto Mesh.
            an 18-gauge steel stud framing
            system (see note 7.)                             Adhesive/base coat, primer and finish coat as
                                                             listed under “Sto Essence” elements.
WPB:          The substrate is a recognized water
              penetration barrier (e.g. concrete)
              and additional protection is not
              required.

Insulation:   a 25-mm- to 102-mm-thick, rigid, EPS
              board adhered to the substrate using
              one of the Sto Corp. adhesives listed.

Adhesive:     Sto Primer/Adhesive-B
              Sto Primer/Adhesive

Base coat:    Sto Primer/Adhesive-B
              Sto Primer/Adhesive

Primer (optional):
             brush-, roller- or spray-applied
             Sto Primer.
Finish coat: Sto Essence DPR

Sto Essence
Insulation: a 25-mm- to 102-mm-thick, rigid, EPS
            board adhered to the substrate using
            one of the Sto Corp. adhesives listed.

Adhesive:     Sto Primer/Adhesive-B
              Sto Primer/Adhesive

Base coat:    Sto Primer/Adhesive-B



                                                       -9-
  Table 3.1.1.     Product Details for “Sto Premier”
                                                                              Distinctive System Components
System
                 System                                                                   Water
Family
                                 Insulation              Intended Substrate             Penetration        Adhesive      Base Coat        Finish Coat
                                                                                          Barrier
                                                                                                                             ®
                                              concrete                                                        ®        Sto BTS Plus
                                                                                                        Sto BTS Plus          ®
                                 EPS          masonry                                                          ®       Sto BTS Silo
                             ®                                                                          Sto BTS Silo          ®
          Sto Premier NExT       25 mm to     glass-mat-surfaced gypsum sheathing      StoGuard®               ®       Sto BTS -B     StoSilco® Lit
                                                                                                        Sto BTS -B
                                 101 mm       cement board                                                             Sto RFP
                                              wood-based sheathing
                                              concrete
                             ®   EPS          masonry
          Sto Premier NExT                                                                                    ®              ®
                                 25 mm to     glass-mat-surfaced gypsum sheathing      StoGuard®        Sto BTS NC     Sto BTS NC     StoSilco® Lit
          NC
                                 101 mm       cement board
                                              wood-based sheathing
                                 EPS
                                              concrete                                                        ®              ®
          Sto Premier NC         25 mm to                                                     -         Sto BTS -NC    Sto BTS -NC    StoSilco® Lit
                                              masonry
                                 140 mm
                                                                                                                             ®
                                              concrete                                                        ®        Sto BTS Plus
Sto                              EPS                                                   Sto Flexyl       Sto BTS -B            ®
          Sto Premier                         masonry                                                          ®       Sto BTS Silo
Premier                          25 mm to                                              Sto Watertight   Sto BTS Plus          ®       StoSilco® Lit
          Signature                           glass-mat-surfaced gypsum                                        ®       Sto BTS -B
                                 101 mm                                                Coat             Sto BTS Silo
                                              cement board                                                             Sto RFP
                                              concrete
                                 EPS                                                   Sto Flexyl
          Sto Premier                         masonry                                                         ®              ®
                                 25 mm to                                              Sto Watertight   Sto BTS NC     Sto BTS NC     StoSilco® Lit
          Signature NC                        glass-mat-surfaced gypsum
                                 140 mm                                                 Coat
                                              cement board
                                                                                                                             ®
                                              concrete                                                        ®        Sto BTS Plus
                                 EPS                                                   Sto Flexyl       Sto BTS Plus          ®
          Sto Premier                         masonry                                                          ®       Sto BTS Silo
                                 25 mm to                                              Sto Watertight   Sto BTS Silo          ®       StoSilco® Lit
          Signature PER                       glass-mat-surfaced gypsum sheathing                              ®       Sto BTS -B
                                 101 mm                                                 Coat            Sto BTS -B
                                              cement board                                                             Sto RFP
                                              concrete
                                 EPS                                                   Sto Flexyl
          Sto Premier                         masonry                                                         ®              ®
                                 25 mm to                                              Sto Watertight   Sto BTS NC     Sto BTS NC     StoSilco® Lit
          Signature PER NC                    glass-mat-surfaced gypsum c2ement
                                 101 mm                                                 Coat
                                              board




                                                                              - 10 -
  Table 3.1.2.     Product Details for “Sto Classic”
                                                                              Distinctive System Components
System                                                                                    Water
                 System
Family                          Insulation               Intended Substrate            Penetration     Adhesive              Base Coat            Finish Coat
                                                                                         Barrier
                               EPS
                                              concrete                                                         ®                  ®                ®
          Sto Classic NC       25 mm to                                                       -         Sto BTS NC         Sto BTS NC         StoLit
                                              masonry
                               140 mm
                                                                                                                                  ®
                                              concrete                                                         ®           Sto BTS Plus
                                                                                                        Sto BTS Plus              ®
                               EPS            masonry                                                          ®           Sto BTS Silo
                           ®                                                                            Sto BTS Silo              ®                ®
          Sto Classic NExT     25 mm to       glass-mat-surfaced gypsum                StoGuard®               ®           Sto BTS -B         StoLit
                                                                                                        Sto BTS -B
                               101 mm         cement board                                                                 Sto RFP
                                              wood-based sheathing
                                              concrete
                           ®   EPS            masonry
          Sto Classic NExT                                                                                     ®                  ®                ®
                               25 mm to       glass-mat-surfaced gypsum                StoGuard®        Sto BTS NC         Sto BTS NC         StoLit
          NC
                               140 mm         cement board
                                              wood-based sheathing
                                                                                                               ®                  ®
                                                                                                        Sto BTS Plus       Sto BTS Plus
                                                                                                                ®                  ®
                                                                                                        Sto BTS Silo       Sto BTS Silo
                                              concrete                                                          ®                  ®
Sto                            EPS                                                     Sto Flexyl       Sto BTS -B         Sto BTS -B
          Sto Classic                         masonry                                                                                              ®
Classic                        25 mm to                                                Sto Watertight   Sto Dispersion     Sto RFP            StoLit
          Signature                           glass-mat-surfaced gypsum
                               101 mm                                                    Coat           Sto Fast Set Dry   Sto Fast Set Dry
                                              cement board
                                                                                                         Adhesive/Base       Adhesive/Ba
                                                                                                         Coat                se Coat
                                              concrete
                               EPS                                                     Sto Flexyl
          Sto Classic                         masonry                                                          ®                  ®                ®
                               25 mm to                                                Sto Watertight   Sto BTS NC         Sto BTS NC         StoLit
          Signature NC                        glass-mat-surfaced gypsum
                               140 mm                                                    Coat
                                              cement board
                                                                                                                                  ®
                                              concrete                                                         ®           Sto BTS Plus
                               EPS                                                     Sto Flexyl       Sto BTS Plus              ®
          Sto Classic                         masonry                                                          ®           Sto BTS Silo            ®
                               25 mm to                                                Sto Watertight   Sto BTS Silo              ®           StoLit
          Signature PER                       glass-mat-surfaced gypsum                                        ®           Sto BTS -B
                               101 mm                                                    Coat           Sto BTS -B
                                              cement board                                                                 Sto RFP
                                              concrete
                               EPS                                                     Sto Flexyl
          Sto Classic                         masonry                                                          ®                  ®                ®
                               25 mm to                                                Sto Watertight   Sto BTS NC         Sto BTS NC         StoLit
          Signature PER NC                    glass-mat-surfaced gypsum
                               1401 mm                                                   Coat
                                              cement board




                                                                              - 11 -
Table 3.1.3. Product Details for “Sto Essence”
                                                                   Distinctive Components
 System                                                                 Water
             System                                                                                                  Finish
 Family                   Insulation       Intended Substrate       Penetration       Adhesive         Base Coat
                                                                                                                      Coat
                                                                       Barrier
                                        concrete
                                                                                     Sto Primer/    Sto Primer/    Sto
           Sto          EPS             masonry
                                                                                       Adhesive       Adhesive       Essence
           Essence      25 mm to        gypsum-based sheathing      StoGuard®
                ®                                                                    Sto Primer/    Sto Primer/      DPR
           NExT         101 mm          cement board
Sto                                                                                    Adhesive-B     Adhesive-B     Finish
                                        wood-based sheathing
Essence
                                        concrete                                     Sto Primer/    Sto Primer/    Sto
           Sto          EPS                                         Sto Flexyl
                                        masonry                                        Adhesive       Adhesive       Essence
           Essence      25 mm to                                    Sto Watertight
                                        gypsum-based sheathing                       Sto Primer/    Sto Primer/      DPR
           Signature    101 mm                                        Coat
                                        cement board                                   Adhesive-B     Adhesive-B     Finish




                                                                 - 12 -
4. Usage and Limitations                                      insulation and should terminate at least
                                                              200 mm above grade level.
•   “Sto Premier, Sto Classic, Sto Essence” are
    intended for use as exterior insulation wall
    systems applied directly to vertical walls of         •   In retrofit construction, the addition of
    masonry, concrete, gypsum sheathing and/or                thermal insulation onto existing exterior
    OSB and plywood sheathing over wood or                    walls will increase the thermal efficiency and
    steel framing.                                            air tightness of the wall. Deficiencies in
                                                              flashing and other elements in the building
                                                              assembly, including mechanical systems, may
•   The systems intended to be installed on wood
                                                              result in detrimental effects of moisture
    substrates are permitted in all locations
                                                              accumulation as highlighted in the NBC 2005,
    except coastal areas.
                                                              Division B, Appendix Note A-9.25.2.4.(3). As
                                                              a result, existing exterior walls that are
    Coastal areas are defined by the NBC 2005 by
                                                              intended to be retrofitted with EIFS must
    areas where:
                                                              meet the requirements of the NBC 2005 for
    o the number of degree-days is less than
                                                              heat transfer, air leakage and condensation
       3 400 and the moisture index is greater
                                                              control.
       than 0.90, or
    o the number of degree-days is 3 400 or
       more, and the moisture index is greater            •   The possibility of moisture accumulation
       than 1.0.                                              within the wall construction is mainly a
                                                              function of the ability of the wall assembly to
                                                              deflect bulk water entry; the physical
•   These systems are acceptable for use on new
                                                              properties of the cladding being installed and
    and existing exterior, vertical walls. The
                                                              its impact on the thermal, air leakage and
    systems are not acceptable for use on exposed
                                                              vapour diffusion characteristics of the
    horizontal surfaces.
                                                              existing wall must be in accordance with the
                                                              NBC 2005, Division B, Appendix Note
•   When “Sto Premier, Sto Classic, Sto Essence”
                                                              A-5.1.2.1.(1).
    are part of a prefabricated panel system that
    incorporates structural components, the
                                                          •   “Sto Premier, Sto Classic, Sto Essence” can
    prefabricated panel system shall be designed
                                                              provide additional thermal and air leakage
    by a professional engineer or architect in
                                                              resistance to the wall assembly with no
    accordance with the manufacturer’s criteria
                                                              detrimental effects if properly installed with
    and the requirements of the NBC 2005.
                                                              knowledge of the existing wall configuration
                                                              and performance.
•   The systems alone may not provide the full
    amount of the required wall insulation. The
    thermal resistance of the wall system shall           •   When used in new construction, the design of
    conform to the energy requirements of the                 “Sto Premier, Sto Classic, Sto Essence” shall
    applicable building code. The wall system                 be in accordance with the requirements of
    may have to conform to the Model National                 Section 9.25. of Division B of the NBC 2005.
    Energy Code of Canada for Buildings 1997 as               Note: StoGuard® has an air leakage rate of
                                                                                    2
    a minimum to meet CMHC technical                          less than 0.1 L/(s•m ) at 75 Pa and a water
    requirements.                                             vapour permeance greater than
                                                                             2
                                                              60 g/(Pa•s•m ).
•   “Sto Premier, Sto Classic, Sto Essence” are
    not suitable for use as a structural sheathing        •   The polystyrene thermal insulation shall be
    for bracing purposes.                                     aged for a minimum of five weeks or
                                                              kiln-dried before installation.
•   “Sto Premier, Sto Classic, Sto Essence” are
    not intended for use as a below-grade                 •   Where allowed by the Code through
                                                              conformance to Clause 3.2.3.8.(1)(b) of
                                                              Division B, Sto Premier NC, Sto Premier


                                                     - 13 -
          ®
    NExT NC, Sto Premier Signature NC, Sto                    “Test for Surface Burning Characteristics of
    Premier Signature PER NC, Sto Classic NC,                 Flooring, Floor Coverings, and Miscellaneous
                      ®
    Sto Classic NExT NC, Sto Classic Signature                Materials and Assemblies.” The mineral
    NC and Sto Classic Signature PER NC are                   wool thermal insulation shall have a flame-
    acceptable for use in the exposed face of                 spread rating of not more than 25 when
    buildings required to be of noncombustible                tested in accordance with the requirements of
    construction, provided the interior surfaces of           CAN/ULC-S102.2-M88.
    the wall assembly are protected by a thermal
    barrier conforming to Sentence 3.1.5.12.(3) of        •   The polystyrene insulation shall not be
    Division B of the NBC 2005.                               thicker than 102 mm when used in claddings
                                                              complying with Article 3.1.5.5. of Division B
•   Where allowed by the Code through                         of the NBC 2005. The polystyrene insulation
    conformance to Clause 3.1.5.5.(1)(c) of                   shall not be thicker than 140 mm when used
                                                ®
    Division B, Sto Premier, Sto Premier NExT ,               in claddings complying with Clause
    Sto Premier Signature, Sto Premier Signature              3.2.3.8.(1)(b) of Division B of the NBC 2005.
                                       ®
    PER, Sto Classic, Sto Classic NExT , Sto
    Classic Signature, Sto Classic Signature PER,         •   Expansion joints must be carried through the
                                    ®
    Sto Essence, Sto Essence NExT and Sto                     cladding. Movement joints are required to
    Essence Signature are acceptable for use in               accommodate expansion and contraction of
    buildings required to be of noncombustible                building materials due to thermal changes,
    construction that are not more than three                 moisture, wind, gravity, vibration and
    stories in building height and not                        seismic activity. Expansion joints must be
    sprinklered, and to an unlimited height if                used in the following situations:
    sprinklered, provided the interior surfaces of            o at joints that occur in the substrate,
    the wall assembly are protected by a thermal              o at any abutment of the system with other
    barrier conforming to Sentence 3.1.5.12.(3) of               materials,
    Division B of the NBC 2005.                               o where the substrate changes,
                                                              o where significant structural movement
•   When used in noncombustible construction,                    occurs,
    the polystyrene insulation shall be protected             o where deflections in excess of L/240 are
    from the inside of the building in accordance                expected, and
    with NBC 2005, Division B, Sentence                       o at the floor line in wood-frame
    3.1.5.12.(2).                                                construction (may not be required when
                                                                 using engineered wood beams).
•   When used in combustible construction,
    the polystyrene insulation shall be                   •   Closed cell backer rods should be used at
    protected from the inside of the building in              expansion joints so that the low-modulus
    accordance with NBC 2005, Division B,                     sealant may be installed as per the sealant
    Clauses 3.1.4.2.(1)(c) and 9.10.17.10.(1)(c).             manufacturer’s instructions.

•   The systems should be kept at least 50 mm, or         •   “Sto Premier, Sto Classic, Sto Essence” must
    as required in building regulations and safety            be installed according to Sto Corp.’s
    codes, from heat-emitting devices, such as                specifications and typical details by
    recessed light fixtures and chimneys.                     applicators possessing a Sto EIFS Certificate,
                                                              an AWCI EIFS Certificate, and/or an EIFS
•   The requirements of the NBC 2005 regarding                QAP certificate. Sto Corp.’s current details,
    fire stops shall be implemented.                          specifications and applicator’s installation
                                                              guide are available at www. stocorp.com.
•   The polystyrene thermal insulation shall have
    a flame-spread rating of not more than 500            •   “Sto Premier, Sto Classic, Sto Essence” are
    when tested in accordance with the                        not suitable for use as a structural sheathing
    requirements of CAN/ULC-S102.2-M88,


                                                     - 14 -
     for bracing purposes.
                                                          •   OSB and/or plywood sheathing boards used
•    Wet materials must be applied at                         in conjunction with “Sto Premier, Sto Classic,
     temperatures above 4°C and maintained                    Sto Essence” shall be fastened to the framing
     above 4°C for a period not less than 24 hours.           in conformance with Article 9.23.3.5. of
     The substrate must be maintained above 4°C               Division B of the NBC 2005.
     for a period not less than 24 hours. Cool and
     humid climatic conditions may extend drying          •   The drainage cavity created by the use of the
     time beyond 24 hours. Temporary protection               notched trowel adhesive ribbons shall remain
     and heat must be provided during colder                  unobstructed by any other obstructions so as
     conditions. Materials must be stored at                  to form a clear drainage cavity behind the
     temperatures between 5°C and 32°C.                       insulation boards.
     Previously frozen materials must not be used.
                                                          •   “Sto Premier, Sto Classic, Sto Essence” shall be
•    Wet, finished surfaces must be protected                 installed with suitable flashing to drain any
     from rain and wind-driven moisture until the             incidental water from the drainage cavity to
     materials have set and hardened.                         the exterior and to protect the exposed top
                                                              edge of the cladding.
•    Cap flashing must be installed immediately
     after completion of the finish coat or               •   The moisture content of lumber and/or wood
     temporary protection must be provided.                   sheathing shall not be more than 19% at the
                                                              time of the application of the water
•    Glass-mat gypsum sheathing must be in                    penetration barrier.
     compliance with the requirements of
     ASTM C 1177/C 1177M-04e1, “Glass Mat
     Gypsum Substrate for Use as Sheathing,” or
     have been evaluated by CCMC.

•    Specification and a description of surface
     sealers must be provided by the
     manufacturer.

Applications over OSB and plywood sheathing
substrates:

•   OSB and/or plywood sheathing boards used
    in conjunction with “Sto Premier, Sto Classic,
    Sto Essence” shall comply with the
    requirements of CSA O 437.0-93, “OSB and
    Waferboard” (in the case of OSB) and CSA O
    121-M1978, “Douglas Fir Plywood,” CSA O
    151-M1978, “Canadian Softwood Plywood,”
    CSA O 153-M1980, “Poplar Plywood” or CSA
    O 325.0-92, “Construction Sheathing” (in the
    case of plywood). The OSB and/or plywood
    sheathing boards shall have a minimum
    thickness of 11.1 mm and 12.7 mm,
    respectively. The boards shall have their
    principle strength-direction across the studs,
    they must be continuously supported by
    framing, and they must be gapped at least
    2.0 mm and not more than 3.0 mm.


                                                     - 15 -
Figure 1.a Sto Next® over concrete                   Figure 1.b Sto EIFS over concrete
            masonry




Figure 1.c Sto NEXT® over wood substrates            Figure 1.d Sto Signature over steel frame




                                            - 16 -
Figure 2a Pan flashing under window            Figure 2b Flashing under nail-fin window




                                      - 17 -
•   Each container and package of material used         Reinforcing Mesh
    as part of the Sto EIFS shall be marked as             • manufacturer’s name or trademark,
    follows:                                               • length and width, and
                                                           • type.
    Adhesive/Base Coat
    • manufacturer’s name or trademark,                     Finish Coat
    • product name,                                         • manufacturer’s name or trademark,
    • storage precautions, temperature range,               • product name,
    • application instructions and intended use,            • storage precautions,
       and                                                  • application instructions, and
    • quantity of material.                                 • quantity of material.

    Portland Cement                                     Sto Corp. systems’ components must be clearly
    • manufacturer’s name or trademark, and             identified with the phrase “CCMC 12416-R.”
    • CSA Standard A5, Portland Cement.
                                                        5. Performance
    Insulation Board                                    CCMC’s Technical Guide for “Exterior Insulation
    • manufacturer’s name or trademark,                 and Finish Systems” sets out the nature of the
    • type,                                             technical evidence required by CCMC to enable it
    • CAN/CGSB-51.20-M87, “Thermal                      to evaluate a product as an acceptable or
        Insulation Polystyrene, Boards and Pipe         alternative solution in compliance with the NBC
        Covering,” and                                  2005. The Report holder has submitted test results
    • surface-burning characteristics.                  for CCMC’s evaluation. Testing was conducted at
                                                        independent laboratories recognized by CCMC.
                                                        The corresponding test results for “Sto Premier,
                                                        Sto Classic, Sto Essence” are summarized below.

Table 5.1.1.   Results of Adhesion Testing for “Sto Premier, Sto Classic, Sto Essence”
             Property                       Requirements                             Results
Bond test (water penetration
barrier (WVB)) (MPa)
  • adhesion to substrate          No detachment at bonding plane
    (Sto Flexyl/Sto Watertight
    Coat to cement board)                          @
    ○ dry state                                   0.3                                 0.613
    ○ 2 h drying                                  0.1                                 0.419
    ○ 7 d drying                                  0.3                                0.7708
Bond test (WPB) (MPa)
  • adhesion to substrate          No detachment at bonding plane
    (Sto Flexyl/Sto Watertight
    Coat to Dens-Glass Gold)                       @
    ○ dry state                                   0.3                                 0.397
    ○ 2 h drying                                  0.1                                 0.125
                                                                                 (1)
    ○ 7 d drying                                  0.3                       0.215 (deemed to pass)
Bond test (WPB) (MPa)
  • adhesion to substrate          No detachment at bonding plane
                   ®
    (Sto Gold Coat to Dens-
    Glass Gold)                                    @
    ○ dry state                                   0.3                                 0.277
    ○ 2 h drying                                  0.1                                 0.097
                                                                                 (1)
    ○ 7 d drying                                  0.3                       0.188 (deemed to pass)


                                                   - 18 -
Table 5.1.1.   Results of Adhesion Testing for “Sto Premier, Sto Classic, Sto Essence, Sto System
               Plus 1 and Sto System Plus 1-RS” (cont’d)
            Property                         Requirements                            Results
        ®
Sto BTS Silo to WPB
        ®
Sto BTS Silo to Sto Watertight      No detachment at bonding plane
Coat/Sto Flexyl                                  @
    ○ dry state                                 0.3                                    0.3
    ○ 2 h drying                                0.1                                    0.1
    ○ 7 d drying                                0.3                                    0.3
                                    No detachment at bonding plane
       ®
Sto BTS Silo to EPS                              @
                                                                               (1)
    ○ dry state                                 0.3                         0.1 (deemed to pass)
    ○ 2 h drying                                0.1                                 0.1
                                                                               (1)
    ○ 7 d drying                                0.3                         0.1 (deemed to pass)
        ®
Sto BTS Plus to Sto Watertight      No detachment at bonding plane
Coat/Sto Flexyl                                  @
    ○ dry state                                 0.3                                    0.3
    ○ 2 h drying                                0.1                                    0.1
    ○ 7 d drying                                0.3                                    0.3
                                    No detachment at bonding plane
       ®
Sto BTS Plus to EPS                              @
                                                                               (1)
    ○ dry state                                 0.3                         0.1 (deemed to pass)
    ○ 2 h drying                                0.1                                 0.1
    ○ 7 d drying                                0.1                                 0.1
Sto Adhesive-B to WPB
Sto Adhesive-B to Sto Watertight    No detachment at bonding plane
Coat/Sto Flexyl                                  @                                  0.3
    ○ dry state                                 0.3                                 0.1
                                                                               (1)
    ○ 2 h drying                                0.1                         0.1 (deemed to pass)
    ○ 7 d drying                                0.3
                                    No detachment at bonding plane
Sto Adhesive-B to EPS                            @
                                                                               (1)
    ○ dry state                                 0.3                         0.1 (deemed to pass)
    ○ 2 h drying                                0.1                                 0.1
                                                                               (1)
    ○ 7 d drying                                0.3                         0.1 (deemed to pass)
         ®
Sto BTS NC to WPB                   No detachment at bonding plane
        ®
Sto BTS NC to Sto Flexyl                         @
                                                                               (1)
    ○ dry state                                 0.3                         0.2 (deemed to pass)
    ○ 2 h drying                                0.1                                 0.1
    ○ 7 d drying                                0.3                                 0.3
        ®
Sto BTS NC to Sto Watertight        No detachment at bonding plane
Coat                                             @
                                                                               (1)
    ○ dry state                                 0.3                         0.2 (deemed to pass)
    ○ 2 h drying                                0.1                                 0.1
    ○ 7 d drying                                0.3                                 0.3
                                    No detachment at bonding plane
       ®
Sto BTS NC to EPS                                @
                                                                               (1)
    ○ dry state                                 0.3                         0.2 (deemed to pass)
    ○ 2 h drying                                0.1                                 0.1
                                                                               (1)
    ○ 7 d drying                                0.3                         0.1 (deemed to pass)



                                                 - 19 -
Table 5.1.1.    Results of Adhesion Testing for “Sto Premier, Sto Classic, Sto Essence, Sto System
                Plus 1 and Sto System Plus 1-RS” (cont’d)
               Property                       Requirements                             Results
                                                              ®
                                      Base coat being (Sto BTS NC,
Adhesion base coat to insulation
                                         Sto RFP and dispersion)
                                     No detachment at bonding plane
       ®
Sto BTS NC to EPS                                    @
    ○ dry state                                     0.3                        0.1 (deemed to pass)
                                                                                  (1)
    ○ 2 h drying                                    0.1                       0.05 (deemed to pass)
    ○ 7 d drying                                    0.1                                 0.1
                                     No detachment at bonding plane
                  ®
Sto RFP to Stolit                                    @
                                                                                 (1)
    ○ dry state                                     0.3                        0.1 (deemed to pass)
    ○ 2 h drying                                    0.1                                0.0
    ○ 7 d drying                                    0.1                                0.1
                                     No detachment at bonding plane
Sto RFP to StoSilco® Lit                             @
                                                                                 (1)
    ○ dry state                                     0.3                        0.1 (deemed to pass)
    ○ 2 h drying                                    0.1                                0.1
    ○ 7 d drying                                    0.1                                0.1
                                     No detachment at bonding plane
Sto RFP to EPS                                       @
                                                                                 (1)
    ○ dry state                                     0.3                        0.1 (deemed to pass)
    ○ 2 h drying                                    0.1                                0.1
    ○ 7 d drying                                    0.1                                0.1
Note to Table 5.1.1:
(1) Substrate failure occurred before the requirement of 0.3 MPa could be attained. The conformity of the
    respective coating (water penetration barrier or adhesive) to the 0.3 MPa criterion is established by
    testing over concrete substrate, on which it exceeded the minimum requirement.

Table 5.1.2.    Results of Material Characteristics Testing for “Sto Premier, Sto Classic, Sto Essence”
                Property                          Requirements                         Results
Coefficient of water absorption (WPB),
              2  1/2
@ 96 h kg/(m . s )
    ○ Sto Flexyl                                                                        0.0007
    ○ Sto Watertight Coat                            < 0.0040                           0.0007
                     ®
    ○ Sto Gold Fill                                                                    0.00192
                       ®
    ○ Sto Gold Coat                                                                     0.0008
    ○ StoGuard®                                                                        0.00168
Water vapour permeance (WPB)
            2
(ng/pa·s·m )
    ○ Sto Flexyl                                   report value                          18
    ○ Sto Watertight Coat                                                                18
                       ®
    ○ Sto Gold Coat                                                                     327
Accelerated weathering (WPB), 250 h
    ○ Sto Flexyl                              no cracking, flaking or                   Pass
    ○ Sto Watertight Coat                       deleterious effects                     Pass
                       ®
    ○ Sto Gold Coat                                                                     Pass




                                                   - 20 -
Table 5.1.2.       Results of Material Characteristics Testing for “Sto Premier, Sto Classic, Sto Essence”
                   (cont’d)
Water vapour permenace (lamina)
             2
(ng/pa·s·m )
               ®            ®
     ○ Sto BTS NC to Stolit                                                                                             12.36
                        ®                                            report value
     ○ Sto RFP to Stolit                                                                                                 3.71
               ®
     ○ Sto BTS NC to StoSilco® Lit                                                                                      23.68
               ®
     ○ Sto BTS RFP to StoSilco® Lit                                                                                      6.80
Impermeability to water
               ®            ®
     ○ Sto BTS NC to Stolit
                        ®                                    no water penetration in
     ○ Sto RFP to Stolit                                                                                                Pass
               ®                                                  less than 2 h
     ○ Sto BTS NC to StoSilco® Lit
     ○ Sto RFP to StoSilco® Lit
Water absorption (%)
               ®
     ○ Sto BTS -B                                                                                                        4.8
               ®                                              ≤ 20 of the dry weight
     ○ Sto BTS NC                                                                                                        7.2
     ○ Sto RFP                                                                                                          11.87
Mildew and fungus resistance
             ®
     ○ Stolit                                                         no growth                                         Pass
     ○ StoSilco® Lit
Salt spray resistance
               ®            ®
     ○ Sto BTS NC to Stolit
                        ®
     ○ Sto RFP to Stolit                                       no deleterious effects                                   Pass
               ®
     ○ Sto BTS NC to StoSilco® Lit
     ○ Sto RFP to StoSilco® Lit
                                                              no cracking, flaking or
Accelerated weathering, 2 000 h                                                                                         Pass
                                                                deleterious effects


Table 5.1.3.       Results of Climatic Changes Test on “Sto Premier, Sto Classic, Sto Essence”
              Test                                                  Requirement                                           Result
Durability under climatic
        (1)                                         No cracking, blistering or sagging of
changes
                                                   base coat, and no detachment of finish
   ○ Sto Premier Signature                                                                                                 Pass
                       ®                                       coat, or crazing
   ○ Sto Premier NExT NC                                                                                                   Pass
Note to Table 5.1.3:
(1) The climatic changes test was conducted based on establishing a worst-case scenario among the
    different systems. The systems indicated in Table 5.1.3 are considered to represent such a scenario.
    The rest of the systems are deemed to meet the requirements of the durability test.


Issued by the Institute for Research in Construction under the authority of the National Research Council



Note: Readers are asked to refer to limitations imposed by NRC on the interpretation and use of this report. These limitations are included in
the introduction to CCMC’s Registry of Product Evaluations, of which this report is part.

Readers are advised to confirm that this report has not been withdrawn or superseded by a later issue by referring to http://irc.nrc.gc.ca/ccmc, or
contacting the Canadian Construction Materials Centre, Institute for Research in Construction, National Research Council of Canada,
Montreal Road, Ottawa, Ontario, K1A 0R6; Telephone (613) 993-6189, Fax (613) 952-0268.



                                                                      - 21 -

				
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Description: R Sto Premier Sto Classic Sto Essence