Slateline is a self-sealing asphalt shingle. Shingles are manufactured with fiberglass mat coated with asphalt on both sides, and surfaced on the weather-exposed side with mineral granules. Shingles have approximate dimensions of 40in x 17in.
Ratings
UL 2218
Product has met Class 4 requirements of UL 2218 when installed over minimum 15/32in thick APA-rated plywood decks.