Polyglass Ply IV

Applicable Standards

Ply_IVPolyglass Ply IV is manufactured with a heavyweight fiberglass mat containing heat-cured resinous binders. The high strength glass mat is saturated with asphalt, giving Polyglass Ply IV excellent strength and weathering characteristics, as well as a uniform porosity for ease in application. Polyglass Ply IV is a ply sheet used in hot mopped roofing applications and may be the basic ply sheet used in all smooth and gravel surfaced roofing systems requiring the ASTM D2178 TYPE IV felt. Meets Florida Approval BFL # 2074. Meets or exceeds ASTM D2178

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