FR Base Sheet 1S

Carlisle’s FR Base Sheet is a non-asphaltic fi berglass-based underlayment that meets or exceeds ASTM D226 or D4869 Type I or II standards. In hot-mopped systems, FR Base Sheet can provide a suitable substrate for deck types requiring a fastened base. FR Base Sheet is also an ideal substrate for direct applications of hot-mopped systems or mechanically fastened systems over wood, tectum, gypsum, and lightweight concrete decks.