High quality 4.5 mm (180 mil) granule surfaced UL Class A fire-resistant
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.
Triple reinforced with a heat resistant non-woven fiberglass mat followed by a fiberglass and 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.
Granulated surfacing provides added resistance to weathering and foot traffic.
DERBICOLOR XPS-FR may be used as both a roofing and flashing membrane.
Proven 30-year, in-place performance history
Can be applied with PERMASTIC Cold Adhesive or heat welded