Installation Instructions

StormMaster Slate General Instructions
Atlas Roofing
Closed Cut Valley: Over felt underlayment or WeatherMaster® Granular Underlayment, apply a
36" wide mineral surface asphalt roll roofing (with granule side up) or smooth surface asphalt roll
roofing centered in the valley, nailing 2" from outer edges only. Apply all shingles on one side of
valley and across center of valley, a minimum of 12". Nail a minimum of 6" away from the center
line of the valley on the unshingled side and strike a chalk line 2" from the center line on the
un-shingled side. Apply shingles on the unshingled side up to the chalk line and trim. Do not cut the
underlying shingle. Cut upper corners of the shingle, cement and nail. See Diagram #2.
8.) FASTENING
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