SOPRA™ IV is a bitumen-coated base sheet for use in built up roof assemblies. SOPRA IV is composed of a proprietary formulation of bitumen and is reinforced with a high quality random glass fiber mat. The topside and underside are surfaced with fine mineral aggregate.
Place SOPRA IV in desired position and back roll the product. Apply approved hot asphalt following manufacturer specifications, then roll in SOPRA IV. Refer to SORPEMA® SBS Roofing Manual for additional application guidelines.
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