Description
Constructed from fiberglass mat, impregnated and coated with hot asphaltic saturant, then coated on the weather side with mineral granules in a 36 in W path. This forms a 36 in W mineral surfaced roll. For use with low-sloped roofs. 90# can be used as an underlayment and a final cap sheet. 108 sq-ft coverage. 50 mil THK.