Products / Polyglass Polyboard E

Polyboard E is a multi-ply, semi-rigid asphaltic panel with a mineral-fortified asphalt core between two asphalt-saturated fiberglass liners, used as a base material and cover board in low-slope roofing over wood, concrete, rigid insulation or an existing roof. The data sheet lists thicknesses of 0.125, 0.187 and 0.25 in and uses as an insulation cover board, retrofit cover board and wood deck cover board.