ASC APP 4.5 CW is premium granulated cap sheet with a highly reflective granule surface. ASC APP 4.5 CW is designed for use as a cap sheet in APP multi-ply roofing systems. It can be used over various substrates for both new construction and reroofing. It is suitable for most low sloped roof decks and may be used for roof system flashings including wall treatments, base flashings, and field flashings. ASC APP 4.5 CW is specifically engineered with reflective roofing granules for high reflectivity and optimal embedment in the APP modified bitumen sheet.

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Application Standards

Application Method



1 Square Roll

Product Sheet

Available Colors

Cool White

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