Product Description
- High quality smooth surfaced APP Modified Bitumen Roofing Membrane
- Derbigum's exclusive blend of APP (atactic polypropylene) polymers and select asphalts enhances the weathering capabilities and UV resistance of the membrane
- Derbigum GP may be used as both a roofing and flashing membrane
- Dual reinforced with a heat resistant non-woven fiberglass mat followed by a polyester scrim that increases the membrane's strength and durability
- Top placement of the reinforcement layers allow it to filter out harmful UV rays which reduces natural aging. Therefore the membrane does not require a granule surfacing or a roof coating for protection
- It Can be applied with PERMASTIC Cold Adhesive or heat welded