Description:
G.A.P. 43# Organic Base Sheet D ASTM 2626-04  is manufactured from superior quality felt that is saturated with asphalt and then coated on both sides with weathering grade coating asphalt and then covered on top with mineral surface fines to prevent sticking in the roll. It is a Florida Building Code Approved product.

Documents:
Product Data Sheet
Safety Data Sheet

Product Use:
G.A.P. Organic Base Sheet is applied over the flat roofing deck or insulation before the application of Build-Up Roofing systems.

Material Performance:
D ASTM 2626-04