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ARCAT Duct and Plenum Spec - Sect 15080

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					                                       SECTION 15080

                             DUCT AND PLENUM INSULATION




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PART 1 GENERAL

1.1   SECTION INCLUDES

      A.   Duct insulation to achieve a 2-hour fire-resistive ventilation duct assembly.

      B.   Plenum insulation to achieve a non-combustible rating for combustible materials in
           an air plenum.

      C.   Duct insulation to achieve zero clearance to combustibles and a 2-hour fire-resistive
           rated duct enclosure on commercial kitchen grease duct exhaust and hazardous
           exhaust duct systems.

1.2   RELATED SECTIONS

      A.   Section 07210 - Building Insulation: Thermal insulation, both fire rated and unrated.

1.3   REFERENCES

      A.   The following published specifications, standards, or tests that apply to single layer,
           fire - resistive rated ventilation air duct (VAD) insulation:
           1.      International Organization for Standardization, Fire resistance tests ventilation
                   air ducts (ISO 6944).
           2.      International Code Council (ICC).
           3.      International Building Code (IBC).
           4.      International Mechanical Code (IMC).
           5.      ASTM C 411 - Standard Test Method for Hot-Surface Performance of High-
                   Temperature Thermal Insulation.
           6.      ASTM E 84 - Standard Test Method for Surface Burning Characteristics of
                   Building Materials.
           7.      ASTM E 119 - Standard Test Method for Fire Tests of Building Construction
                   Materials.
           8.      ASTM E 814 - Standard Test Method for Fire Tests of Through-Penetration
                   Fire Stops.

      B.   The following published specifications, standards, tests, or recommended methods
           of trade, industry, or governmental organizations apply to single layer
           noncombustible fire rated plenum insulation:
           1.     UL 1887 - Visible Flame and Smoke Characteristics for Plastic Pipe.
           2.     ASTM E 84/UL 723 - Surface Burning Characteristics.
           3.     ASTM E 136 - Non-combustibility.




                                            15080-1
      C.   The following published specifications, standards, or tests that apply to zero
           clearance two layer fire rated systems of grease duct insulation and hazardous
           exhaust duct insulation:
           1.    NFPA 96.
           2.    International Code Council Evaluation Service (ICCES).
           3.    1997 ICBO Uniform Mechanical Code (ICBO UMC).
           4.    1997 Uniform Building Code (UBC).
           5.    2006 International Mechanical Code (IMC).
           6.    2006 Uniform Mechanical Code (IAPMO UMC).
           7.    ASTM E 2336 - Standard Test Methods for Fire Resistance Rated Grease
                 Duct Enclosures.
           8.    ASTM E 84 - Standard Test Method for Surface Burning Characteristics of
                 Building Materials.
           9.    ASTM E 119 - Standard Test Methods for Fire Tests of Building Construction
                 and Materials.
           10.   ASTM E 136 - Standard Test Method for Noncombustiblity.
           11.   ASTM E 518 - Standard Test for Durability.
           12.   ASTM E 814 - Standard Test Method for Fire Tests of Through-Penetration
                 Fire Stops

1.4   SYSTEM DESCRIPTION

      A.   A lightweight, non-asbestos, bio-soluble, high temperature, inorganic, foil
           encapsulated insulation blanket. The duct wrap system shall be a tested and listed
           system evaluated for a 2-hour fire resistance rating on a ventilation air duct
           assembly. Testing shall be conducted by a nationally recognized testing laboratory.
           1.     Performance Requirements:
                  a.    Single Layer System for two hour fire rating.
                  b.    2-hour fire resistive enclosure assembly tested per ISO 6944.
                  c.    Firestop tested per ASTM E 814, 2 Hour F and T Ratings.
                  d.    Meets 25/50 Flame and Smoke Ratings per ASTM E 84.

      B.   A lightweight, non-asbestos, bio-soluble, high temperature, inorganic, foil
           encapsulated insulation blanket. The plenum insulation system shall be tested and
           listed to provide a non combustible rating for combustible items located in air
           plenums.
           1.      Performance Requirements:
                   a.    Single Layer System of 1/2 inch (13 mm) thick material.
                   b.    Meets UL 1887 test criteria for visible flame and smoke characteristics.
                   c.    Meets 25/50 Flame and Smoke Ratings per ASTM E 84.
                   d.    Insulation and combustible item must be tested as an assembly.

      C.   A lightweight, non-asbestos, bio-soluble, high temperature, inorganic, foil
           encapsulated insulation blanket. The blanket material must capable of performing at
           2000 degree F (1093 degree C) matching the internal and external fire test
           temperature for grease ducts. The duct wrap system shall be a tested and listed
           system evaluated for reduced clearances to combustibles as an alternative to a
           grease duct, with a two-hour fire rated shaft enclosure. Testing shall be conducted
           at a nationally recognized testing laboratory.
           1.     Performance Requirements:
                  a.     Two-layer system of 1-1/2 inch (38 mm) 6 pcf (96 kg/m3) material.
                  b.     Zero clearance to combustibles across the entire surface of the blanket
                         material per internal fire tests of ASTM E 2336.
                  c.     2-hour fire resistive enclosure assembly per ASTM E 119.
                  d.     Firestop tested per ASTM E 814, 2 Hour F and T Ratings.
                  e.     Meets 25/50 flame and smoke ratings per ASTM E 84.



                                           15080-2
1.5   SUBMITTALS

      A.   Submit under provisions of Section 01300.

      B.   Product Data: Manufacturer's data sheets on each product to be used, including:
           1.   Preparation instructions and recommendations.
           2.   Storage and handling requirements and recommendations.
           3.   Installation methods.

      C.   Submit certification and installation documentation showing system performance
           and Code compliance.

1.6   QUALITY ASSURANCE

      A.   Manufacturer Qualifications: Manufacturer capable of providing field service
           representation during installation.

      B.   Fabricator Qualifications: Fabrication performed in quality controlled manufacturing
           environment by experienced fabricators with references indicating multiple
           satisfactory experiences fabricating high temperature insulation blanket as required
           for this project.

      C.   Installer Qualifications: Installer experienced in performing work of this section who
           has specialized in installation of work similar to that required for this project.

      D.   Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and
           application workmanship.
           1.     Finish areas designated by Architect.
           2.     Do not proceed with remaining work until workmanship, color, and sheen are
                  approved by Architect.
           3.     Refinish mock-up area as required to produce acceptable work.

      E.   Preinstallation Meetings: Conduct preinstallation meeting to verify project
           requirements, manufacturer's installation instructions and manufacturer's warranty
           requirements. Comply with Division 01 Project Management and Coordination
           (Project Meetings).

1.7   DELIVERY, STORAGE, AND HANDLING

      A.   Deliver materials in original unopened packages, clearly marked with manufacturer's
           name, product designation, manufacturer's lot numbers and appropriate third party
           classification listings.

      B.   Store in a covered dry environment.

      C.   Store and dispose of solvent-based materials, and materials used with solvent-
           based materials, in accordance with requirements of local authorities having
           jurisdiction.

1.8   PROJECT CONDITIONS

      A.   Maintain environmental conditions (temperature, humidity, and ventilation) within
           limits recommended by manufacturer for optimum results. Do not install products
           under environmental conditions outside manufacturer's absolute limits.

PART 2 PRODUCTS

2.1   MANUFACTURERS



                                           15080-3
      A.   Acceptable Manufacturer: Unifrax I LLC, which is located at: 2351 Whirlpool St. ;
           Niagara Falls, NY 14305-2413; Tel: 716-278-3800; Fax: 716-278-3900; Email:
           request info; Web: www.unifrax.com

      B.   Substitutions: Not permitted.

      C.   Requests for substitutions will be considered in accordance with provisions of
           Section 01600.

2.2   DUCT INSULATION FOR FIRE RATED VENTILATION AIR DUCTS (VAD)

      A.   Product: FyreWrap Elite 1.5 Duct Insulation by Unifrax I LLC, Niagara Falls, NY:
           1.   Nominal 1.5 inch (38 mm) thick foil encapsulated blanket material at 6 PCF to
                provide 2-hour fire resistive enclosure assembly per ISO 6944.
           2.   An inorganic, flexible, non-asbestos, bio-soluble high temperature, foil
                encapsulated blanket material.
           3.   Blanket insulation must maintain a 2012 degree F (1100 degree C) operating
                temperature
           4.   Blanket fiber materials must be tested per EU regulatory requirements,
                Directive 97/69/EC for bio-solubility, and verified by an independent
                laboratory.
           5.   Provide Firestop sealants, tape, insulation pins, clips, banding and other
                components to ensure the installed system complies with the complete tested
                two-hour fire rated VAD assembly.

2.3   PLENUM INSULATION FOR NONCOMBUSTIBLE FIRE RATED PLENUM

      A.   Product: FyreWrap 0.5 Plenum Insulation by Unifrax I LLC, Niagara Falls, NY:
           1.   Nominal 0.5 inches (12 mm) thick foil encapsulated blanket material to
                provide non combustible rating.
           2.   An inorganic, flexible, non-asbestos, bio-soluble high temperature, foil
                encapsulated blanket material.
           3.   Blanket insulation must maintain a 2012 degree F (1100 degree C) operating
                temperature
           4.   Blanket fiber materials must be tested per EU regulatory requirements,
                Directive 97/69/EC for bio-solubility, and verified by an independent
                laboratory.

2.4   DUCT INSULATION FOR ZERO CLEARANCE APPLIED FIREPROOFING FOR FIRE-
      RATED GREASE DUCTS

      A.   Product: FyreWrap Elite 1.5 Duct Insulation by Unifrax I LLC, Niagara Falls, NY:
           1.   Nominal 1.5 inch (38 mm) thick foil encapsulated blanket material at 6 PCF to
                provide 2-hour fire resistive enclosure assembly per ASTM E 2336.
           2.   A lightweight, flexible, inorganic, non-asbestos, bio-soluble, high temperature,
                foil encapsulated blanket wrap.
           3.   Flexible, fully encapsulated blanket material, two-layer system to provide 2-
                hour fire resistive enclosure assembly per ASTM E 2336.
           4.   Blanket insulation must maintain a 2012 degree F (1100 degree C) operating
                temperature.
           5.   Blanket fiber materials must be tested per EU regulatory requirements,
                Directive 97/69/EC for bio-solubility, and verified by an independent
                laboratory.
           6.   Provide field fabricated or prefabricated fire rated access doors (for cleanout
                as required) to maintain 2-hour rating and required clearance.
           7.   Provide Firestop sealants, tape, insulation pins, clips, banding and other
                components as per manufacturer's instructions to provide fully functioning



                                           15080-4
                  zero clearance to combustibles grease duct system.

2.5   ACCESS DOORS

      A.   Access Door: Field fabricated 16 gauge steel.
           1.   Threaded Rods: 1/4 inch (6 mm) diameter.
           2.   Gasket: 1/2 inch (13 mm) Unfaced FyreWrap or ceramic fiber blanket.

      B.   Access Door: Ductmate Ultimate prefabricated 16 gauge steel.

      C.   Access Door: Ductmate F2 prefabricated 16 gauge steel.

PART 3 EXECUTION

3.1   EXAMINATION

      A.   Do not begin installation until substrates have been properly prepared.

      B.   If substrate preparation is the responsibility of another installer, notify Architect of
           unsatisfactory preparation before proceeding.

3.2   PREPARATION

      A.   Inspect and verify that all surfaces are smooth, dry, clean and free from dust, debris,
           or other loose materials. Surfaces must be dry before the application of insulation
           materials.

      B.   Clean surfaces thoroughly prior to installation.

      C.   Prepare surfaces using the methods recommended by the manufacturer for
           achieving the best result for the substrate under the project conditions.

3.3   INSTALLATION

      A.   Duct Insulation (HVAC Ducts):
           1.    Single-Layer System: Apply single layer encapsulated insulation directly to
                 duct surface.
           2.    Install with minimum 3 inch (76mm) material joint overlap.
           3.    Seal cut edges with aluminum foil tape
           4.    Attachment for duct widths of 24 inches (610 mm) or less:
                 a.      Temporarily secure duct insulation with 1 inch (25.4 mm) wide filament
                         tape located 1-1/2 inches (38 mm) from blanket edge and on 10-1/2
                         inch (267 mm) centers.
                 b.      Permanently attach blanket with carbon steel or stainless steel banding
                         located 1-1/2 inches (38 mm) from blanket edge and on 10-1/2 inch
                         (267 mm) centers.
                 c.      Tighten steel bands to secure insulation firmly without damaging
                         blanket.
           5.    Attachment for duct widths greater than 24 inches (610 mm):
                 a.      Weld 12 gauge steel insulation pins to underside of horizontal runs and
                         backside of vertical runs in rows spaced maximum 10 1/2 inches (267
                         mm) on center along duct length, 6 inches - 12 inches (152 - 305 mm)
                         from duct edges.
                 b.      Space pins 12 inches (305 mm) on center across duct width.
                 c.      Impale insulation over pins and hold in place with 2-1/2 inch (64 mm)
                         square galvanized steel speed clips (washers).
                 d.      Turn down or cut off exposed pin ends.



                                             15080-5
B.   Plenum Insulation:
     1.   Apply single layer encapsulated insulation directly to surface of combustible
          item.
     2.   Cut insulation lengths to wrap around combustible item providing 1 inch (25.4
          mm) longitudinal overlap.
     3.   Seal cut edges with aluminum foil tape.
     4.   Provide 1 inch (25.4 mm) perimeter overlap with adjacent insulation blanket.
     5.   Temporarily secure plenum insulation with 1 inch (25.4 mm) wide filament
          tape, located 1/2 inch (12.7 mm) from blanket edge and on 11 inch (280 mm)
          centers.
     6.   Permanently attach insulation with steel tie wire or banding on maximum 11
          inch centers (279 mm).
     7.   Tighten wire or banding to secure insulation firmly without damaging blanket.

C.   Duct Insulation (Grease and Hazardous Exhaust Ducts):
     1.    Two-Layer System: Apply two-layers of encapsulated insulation directly on
           duct surface.
     2.    Install first layer with transverse material compression joints. Install first layer
           longitudinal joints with minimum 3 inch (76mm) material joint overlaps.
     3.    Install second layer with minimum 3 inch (76mm) material joint overlaps,
           offset minimum of 12 inches (305mm) from first layer joints.
     4.    Seal cut edges with aluminum foil tape.
     5.    Transverse material joints may be installed using any of the following
           techniques:
           a.      Telescope overlap - insulation installed by leaving one edge exposed
                   and overlapping other edge with adjacent blanket.
           b.      Checkerboard overlap - overlap both edges of alternating blanket,
                   leaving both edges of others exposed.
           c.      Butt Joint & collar - cover blanket butt edges with 6 inch (152mm)
                   blanket collar centered on material joint.
     6.    Banding for duct widths 24 inches (610 mm) or less:
           a.      Temporarily secure insulation with filament tape.
           b.      Place carbon steel or stainless steel bands (minimum 1/2 inch (12.7
                   mm) wide, nominal 0.015 inch (0.4 mm) thick) 1-1/2 inches (38 mm)
                   from edge of overlap joints.
           c.      Place bands at maximum 10-1/2 inches (267 mm) on center in field
                   between overlaps.
           d.      Tighten steel bands to secure insulation firmly without damaging
                   blanket.
     7.    Pins and Banding for duct widths greater than 24 inches (610 mm) up through
           48 inches (1220 mm):
           a.      Weld 12 gauge steel insulation pins to underside of horizontal runs and
                   backside of vertical runs in rows spaced maximum 10-1/2 inches (267
                   mm) on center along duct length.
           b.      Space pins 12 inches (305 mm) on center across duct width and 1-1/2
                   inches (38 mm) from duct edges.
           c.      Impale insulation over pins and hold in place with 2-1/2 inch (64 mm)
                   square galvanized steel speed clips (washers).
           d.      Secure insulation to duct with filament tape as needed.
           e.      Turn down or cut off exposed pin ends.
           f.      Locate carbon steel or stainless steel bands (minimum 1/2 inch (12.7
                   mm) wide, nominal 0.015 inch (0.4 mm) thick) 1-1/2 inches (38 mm)
                   from edge of overlap joints.
           g.      Space remaining bands at midpoint between overlap joints or at 10-1/2
                   inches (267 mm) oc. Tighten steel bands to secure insulation firmly
                   without damaging blanket.



                                      15080-6
           8.    Pins for ducts wider than 48 inches (1220 mm):
                 a.     Weld 12 gauge steel insulation pins on all sides of duct in rows spaced
                        maximum 10 1/2 inches (267 mm) on center along duct length.
                 b.     Space pins 8 inches (203 mm) on center around duct and 5 inches
                        (127 mm) from duct edges. Center insulation overlaps on pins.
                 c.     Impale insulation over pins and hold in place with 2-1/2 inch (64 mm)
                        square galvanized steel speed clips (washers).
                 d.     Turn down or cut off exposed pin ends.
           9.    Vertical Ductwork: Apply insulation in continuous length parallel to vertical
                 length of duct with overlaps minimum of 6 inches (152 mm) from duct corners.
                 Space pins 8 inches (203 mm) on center at centerline of vertically oriented
                 overlaps and on maximum 12 inch (305 mm) columns.

3.4   ACCESS DOORS

      A.   Field-Fabricated:
           1.     Cut and remove installed insulation to dimension 2 inches (51 mm) larger
                  than opening.
           2.     Seal cut edges of remaining insulation with aluminum foil tape.
           3.     Cut access opening in duct.
           4.     1/4 inch (6.4 mm) diameter threaded rod to corners of opening.
           5.     Cover rods with hollow steel tubes.
           6.     Cut 16 gauge cover plate with dimensions 2 inches (51 mm) larger than
                  opening.
           7.     Drill holes in cover plate to match rod pattern.
           8.     Place 1/2 inch (12.7 mm) ceramic fiber or unfaced FyreWrap blanket gasket
                  between duct and access door cover.
           9.     Install cover over rods.
           10.    Single Layer: Weld 4 steel insulation pins to outside of door panel, 1 inch
                  (25.4 mm) from corners.
           11.    Double Layer: Weld 5 steel insulation pins to outside of door panel, 1 inch
                  (25.4 mm) from corners.
           12.    Cut first insulation piece to size of access door, seal cut edges with aluminum
                  foil tape and install over pins within cutout area.
           13.    Cut second insulation piece with dimensions 2 inches (51 mm) larger than
                  first piece, seal cut edges with aluminum foil tape and install over pins.
           14.    Cut third insulation piece (for 2-Layer grease duct systems only) with
                  dimensions 2 inches (51 mm) larger than second piece, seal cut edges with
                  aluminum foil tape and install over pins.
           15.    Place washers on pins and bend over excess pin lengths.
           16.    Place washers on threaded rods and secure with nuts.

      B.   Pre-fabricated: Ductmate Industries - Ultimate and F-2 access door to be
           prefabricated from 16 gauge steel and installed as one unit.

3.5   MAINTENANCE

      A.   Cut banding or insulation washers on damaged blanket areas and remove.

      B.   Cut and remove damaged blanket.

      C.   Cut new blanket piece with exact dimensions as that removed and install on
           ductwork in same configuration as previously used in compliance with required
           material overlaps and attachment methods.

      D.   Ensure same minimum overlap is created.




                                           15080-7
      E.   Replace permanent attachment.

3.6   FIELD QUALITY CONTROL

      A.   Have manufacturer of products supplied under this Section review Work involved in
           handling, installation/application and protection of its products, and submit written
           reports in acceptable format to verify compliance of Work with Contract.

      B.   Schedule site visits to review Work as installation is about to begin.

3.7   PROTECTION

      A.   Protect installed products until completion of project.

      B.   Touch-up, repair or replace damaged products before Substantial Completion.

                                      END OF SECTION




                                            15080-8

				
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