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Self Install Contract

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									Master Specification
Division 7 – Thermal and Moisture Protection
Section 07310 –Shingles                                                                                                         Page 1




                                                            Specifications for
                                                    Supply and Install Asphalt Shingles

1.0        GENERAL
           1.1        Refer to Master Specification, Division 1 - General Requirements, Section 01110 -Summary of
                      Work.
           1.2        Related Work:
                      1.2.1

           1.3        References:
                      1.3.1

           1.4        Warranty/Guarantee:
                      1.4.1         A manufacturers material guarantee.
                      a)            A five (5) year Roofing Contractors Association Of British Columbia (RCABC) guarantee.
                                    OR
                      b)            An alternate to the RCABC five (5) year guarantee in a form acceptable to the owner. The
                                    alternate form shall include:
                                    a)        A two (2) year surety for a Maintenance Bond with an option to renew for an additional
                                              two (2) years.
                                    b)        An inspection by an independent inspector, appointed by the owner, at the end of a two
                                              (2) year period. The cost of the re-inspector will be born by the owner.
                                    c)        A two (2) year Surety for a Maintenance Bond to be issued at the expiry of the original
                                              two (2) year Surety; and
                                    d)        A five (5) year company guarantee.
                                    e)        A ten (10) year material guarantee from the manufacturer.

           1.5        Submittals:
                      1.5.1

           1.6        Datum’s/Sketches/Layout:
                      1.6.1

           1.7        Site Conditions/Property Lines:
                      1.7.1




D:\Docstoc\Working\pdf\f368ee30-f02d-4ec4-b41b-3bb2e323a0a2.doc                                            Wednesday, 10 August 2011 (SPEC 03/02)
Master Specification
Division 7 – Thermal and Moisture Protection
Section 07310 –Shingles                                                                                                     Page 2

2.0        PRODUCTS
           2.1        Roofing Products:
                      2.1.1         Asphalt shingles must meet or exceed Canadian Standards Association (CSA) A123.1-M1979
                                    "Asphalt Shingles Surfaced with Mineral Granules". Coverage shall be not less than two (2)
                                    thicknesses of shingles over the entire roof, disregarding cut-outs.
                      2.1.2         Starter course and ridge caps shall be Rectangular Shingle Strips with a minimum mass of
                                    32.42 kg/3m2. Starter strips may be omitted where eave protection of not less than type M
                                    mineral-surfaced roll roofing is provided.
                      2.1.3         Mainfield shall be 20 year limited warranty, Interlocking Shingles, minimum mass 34.42
                                    kg/3m2. Approved products:
                                    a)         Tite-Lok 20, by BP Co.
                                    b)         Storm-Lok 20, by Northern Globe
                                    c)         Armourlock 20, by IKO.
                                               Or equivalent.
                      2.1.4         Eave, valley and ridge protection to be an approved 1mm thick rubberized asphalt
                                    composition, self adhering membrane.
                      2.1.5         Nails to be large head corrosion resistant roofing nails (electro-galvanized, hot-dipped
                                    galvanized, or aluminium). No staples permitted
                      2.1.6         Plastic Cement to CGSB 37-GP-5MA, Lap Cement to CBSB 37-GP-4MA.
                      2.1.7         Colours to be selected by the owner from standard colours available.
                      2.1.8         Roof Jacks shall be:
                                    a)         Lead.
                                    b)         Galvanized Metal.
                                    c)         Rubber.
                      2.1.9         The Contractor shall reuse or replace the following items as agreed by the Contract
                                    Administrator:
                                    a)        reuse existing roof vents
                                    b)        replace existing roof vents with new
                                    c)        replace existing roof vents with approved turbines
                      2.1.10        The Contractor shall provide:
                                    a)         Aluminium starter strip
                                    b)         Zinc strip

3.0        EXECUTION
           3.1      Preparation:
                    3.1.1         Remove all existing materials (ie shingles, flashing, roof jacks, starter strips) from roof decks
                                  and legally dispose of same, as per Summary Of Work.


D:\Docstoc\Working\pdf\f368ee30-f02d-4ec4-b41b-3bb2e323a0a2.doc                                        Wednesday, 10 August 2011 (SPEC 03/02)
Master Specification
Division 7 – Thermal and Moisture Protection
Section 07310 –Shingles                                                                                                       Page 3

                    3.1.2         Cover all splits and knot holes, replace any rotten sheathing by cutting back to nearest rafters
                                  and install new plywood to match existing thickness.
                    3.1.3         Re-nail all loose decking to roof framing.
                    3.1.4         Install "H" clips where applicable.
           3.2      Application:
                    3.2.1         One (1) layer of 1mm thick rubberized asphalt composition felt at eaves
                    3.2.2         One (1) layer of 1mm thick rubberized asphalt composition felt to the valleys
                    3.2.3         One (1) layer of fifteen (15) pound felt to the Mainfield
                    3.2.4         Install eave protection from the roof edge to a point not less than 300mm beyond the inner face
                                  of the exterior wall.
                    3.2.5         Apply starter course along the lower edge of the roof with tabs up, using rectangular strip
                                  shingles. They must extend approximately 12mm beyond the eaves and rake of the roof and
                                  fasten along the bottom edge of the roof with nails spaced not more than 300mm on center or
                                  four (4) nails per shingle.
                    3.2.6         Install self adhering membrane to a dust free wood deck surface at the eaves, valleys, ridges and
                                  at all transitions. Install roll width pieces of membrane at transitions of opposing slopes at step
                                  between roof levels (if applicable). Install 300mm width pieces centered over all ridges. Side
                                  and end lap to be 150mm minimum.
                    3.2.7         Install 26 gauge baked enamel, metal step and counter flashing.
                    3.2.8         Mainfield shingles shall be applied with a minimum of two (2) nails per shingle. Shingles are to
                                  lock on to the adjoining shingle with locking tabs. Any shingle with a broken tab is to be
                                  discarded. All vertical and horizontal lines to run parallel and true with a maximum exposure of
                                  170mm to the weather. Adhere shingles to all vent flanges set in mastic cement. Shingles are to
                                  be installed above and below all vent flanges. Shingles are to be cut close to vent riser. All
                                  vents are to be set in mastic cement and securely fastened. Shingles are to overhang eaves and
                                  gables a minimum of 19mm
                    3.2.9         Shingles on hips and ridges shall be applied so they extend not less than 100mm under the
                                  center of each tab or by interlocking devices or self-sealing strips. Ridge capping to be of the
                                  same material as shingles applied to provide double coverage with unexposed fasteners. All
                                  capping to be cut in a chevron pattern.
                    3.2.10        Open valleys shall be flashed with not less than one layer of sheet metal 600mm wide or two
                                  (2) layers of roll roofing.
                    3.2.11        Install flashing up vertical and deck surfaces. Install new pipe flashing and roof jacks as work
                                  progresses.




D:\Docstoc\Working\pdf\f368ee30-f02d-4ec4-b41b-3bb2e323a0a2.doc                                          Wednesday, 10 August 2011 (SPEC 03/02)

								
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