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<br />GAF ALS
<br />CORPO ATION
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<br />APPLICATION INSTRUCTIONS
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<br />SHINGLES
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<br />Four "." P..,.,...
<br />English Size Shingle: 12" x 36' (305-914mm)
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<br />r--."L
<br />i
<br />I
<br />I
<br />!
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<br />_----11' -13' (279-33Omm)
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<br />."-1112'-2-1/2' (13-64mm)
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<br />--
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<br />Sel-Sea1 Ad1esive (tI Froot
<br />..l""~
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<br />So: '/4' - 6-112'
<br />(133-165mm)
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<br />---
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<br />11' -13' (279-33Omm)----_
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<br />112"-2-112' (l~)r-
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<br />-)--10 Fasten:
<br />- Apply ~ within shaded boxes,
<br />(Fastener mmt NOT be e>qJOOed)
<br />IMPORTANT:
<br />Fastener must NOT C<M:r Self-Seal
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<br />
<br />Require A S;xlUil FlIStening P""em?
<br />Use the directions above with the following modification:
<br />Replace the inner two fastening locations with four fastening placements,
<br />Place two fasteners 9' (229mm) from either end +/- l' (25mm), and place
<br />two additional fasteners 14' (356mm) from either end +1- l' (25mm).
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<br />GENERAL INSTRUCTIONS
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<br />. ROOF DECKS: For use on new or reroofing worl< over well-seasoned, Silpported wood deck,
<br />lighlly-constructed with maximum 6' (152mm) wide lumber, having adequate nail-holding capaci-
<br />ty and smooth surface, Plvwood decking as recommended by The Engineered Wood Assn, is
<br />acceptable. Where a Class A rating is required over decks less than 15.'32" thick. an underlayment
<br />is required, 00 IIII fasten ShingleS directly to insulation or insulated deck unless authorized in writ-
<br />ing by GAFMC, Roof decks and existing surfacing material must be dry prior to application of shin-
<br />gles,
<br />. UNDERLAYMENT: Underlayment beneath shingles has many benefits, including preventing
<br />wind driven rain from reaching the interior of the building and preventing sap in some wood
<br />decking from reacting with asphalt shingles, Underlayment is also reQUired by many code bod-
<br />ies, Consult your local building department for its requirements, Where an underlayment is to
<br />be installed. a breather-type underlayment such as GAFMC's Shingle-Mate"underlayment is rec-
<br />ommended. Under/ayment must be installed flat, without wrinkles.
<br />· FASTENERS: Use of nails (rather than staples) is recommended, Use only zinc coaled steel or
<br />aluminum, 10-12 gauge, barbed. defonned or smooth shank roofing nails with heads 318" (lOmml
<br />107/16" (12mm) In diameter, Fasteners should be long enough to penetrate at least 3/4" (19mm
<br />into wood decks or just through the plywood decks, Fastenem must be driven flush with the sur-
<br />face of the shinqle. Over driving will damage the shingle, Raised fastenem will interfere with the
<br />sealing of the shingles, If the temperature is below 40" F or in areas where airbome dust or sand
<br />can be expected before sealing occurs shingles ..ust be hand sealed (see WIND
<br />RESISTANCElHANO SEAliNG),
<br />. WIND RESISTANCElHAND SEALING: These shingles have a special thermal sealant that
<br />firmly bonds the shingles tOQether after application when exposed 10 sun and wann temperatures,
<br />Shingles installed in Failor Winter may not seal until the following Spring, If shingles are damaged
<br />by winds before sealing or are not exposed to adequate surface temperatures. or if the
<br />self-sealant gels dirty, the shingles may never seal. Failure to seal under these circums1ances
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<br />results from the nature of self-sealing shingles and is not a manufacturing defect, To insure imme-
<br />diate seali'!l/, apply quarter-sized dabs of shingle tab adhesive on the back and at the corner of each
<br />tab. The shingle must be pressed finnly into the adhesive, For maximum wind resistance along
<br />rakes, cement shingles to underlayment and each other in a 4" (102mm) width of asphalt plastic
<br />roof cement.
<br />NOTE: Application of excess tab adhesive can cause blistering of the shingle, The film strips on the
<br />back of each shingle are to prevent sticking together of the shingles while in the bundle, Their
<br />removal is NOT required during application,
<br />. CANADIAN COLD WEATHER APPUCATIONS: CSA A123,5-M90 mandates Ihat
<br />shingles applied between September 1 and April 30 shall be adhered with a compalible
<br />field-applied adhesive, See Wind Resistance for GAF Materials Corporation's recommendations for
<br />the application of thai adhesive,
<br />. MANSARD AND STEEP SLOPE APPLICATIONS: For roof Slopes greater than
<br />21' (175Omm/m) per foot (do NOT use on vertical side walls), shinqle sealing must be enhanced
<br />by hand sealing. After fastening \he shingle in place, apply 2 quarter-sized dabs of shingle tab adhe-
<br />sive on the back of each tab as indicated in Wind Resistance above, The Shingle must be pressed
<br />finnly into \he adhesive.
<br />. EXPOSURE: 5" (127mm)
<br />. THROUGH VEN'nLA11ON: All roof structures must be provided with through ventilation to
<br />prevent entrapment of moisture laden air behind roof sheathing, Proper ventilation is also
<br />necessary to help prevent mold growth, Ventilalion prO'lisions must at least meet or exceed
<br />current F.HA, H.U,O, or local code minimum requirements.
<br />. NON-CORRODING METAL DRIP EDGES: Recommended along rake and eave edges on
<br />all decks, especially plywood decks.
<br />. ASPHALT Pl.AStIC CEMENT: For use as shingle tab adhesive, Must confonn to ASTM
<br />04586 Type I or II ,
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