CertainTeed Flintglas Ply Sheet Type 4 is designed for use as an interply felt for both hot and cold applied, inorganic built-up roofing systems. It is specially constructed to provide uniform strength and promote improved asphalt uniformity and adhesion between plies.
CertainTeed Flintglas Ply Sheet type 4 is manufactured on a durable, high quality fiber glass mat which receives a coating of asphalt and is lightly surfaced with a release agent. The fiber glass base mat provides excellent strength and moisture resistance with uniform porosity to allow complete bitumen embedment without excessive bleed through.
CertainTeed Flintglas Ply Sheet Type 4 may be applied in either hot asphalt or approved, cold adhesive such as FlintBond depending on system design and selection. Rolls should be stored upright, off ground, completely protected from the weather. Roof decks shall be structurally sound, dry, smooth and meet or exceed minimum requirements of the deck manufacturer, local code and CertainTeed. Roof decks shall provide positive drainage.