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All Weather APP Glass Cap
  • All Weather APP Glass Cap is a mineral surfaced modified bitumen cap sheet designed for use in modified bitumen roof membrane systems or with conventional roofing plies in a hybrid configuration. All Weather APP consists of a fiberglass mat impregnated and coated with Atactic polypropylene (APP) modified bitumen.

  • All Weather APP Glass Cap is the cap ply of multiple ply roofing systems, or the cap ply in hybrid BUR/modified bitumen assemblies. It is applied with 3-inch side laps and 6-inch end laps.

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