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Black Diamond® Base Sheet is a heat-activated, self-adhered base or interply for hybrid roof systems with a torch-applied cap or cap set in hot asphalt for modified bitumen or built-up roofing systems. This 55 mil membrane is manufactured with tough, dimensionally stable fiberglass reinforcement saturated and coated with SBS-modified bitumen, offering exceptional durability. It is suitable for use in both new construction and reroofing over a variety of substrates, including but not limited to insulation, concrete and plywood/OSB. Black Diamond® Base Sheet is Green Circle Certified with 24% recycled content. Black Diamond® Base Sheet delivers measurable labor savings over traditional fully adhered asphaltic membranes without compromising waterproofing protection. Black Diamond® Base Sheet also may be used as a vapor retarder under roof insulation and may be left exposed for up to six months without asphalt degradation. This versatile base ply can be used in CertainTeed two-ply, low-sl...See More

Features & Benefits

Quick Specs
• SBS-modified • Fiberglass reinforcement • 78 lbs • 2 squares • 1.4 mm (55 mils)
• Meets or exceeds ASTM D4601, Type I and D1970 • Black slag top surface allows six month of exposure • Pliable even in cold temperatures • Excellent elongation/recovery
Why Buy
• Tried and true modified bitumen protection • Significantly reduced labor vs traditional mod-bit or single-ply • Easy to learn, Easy to install • May also be used as a vapor barrier
• Standard asphaltic membrane warranty durations between ten and twenty-five years • Credentialed Contractors can increase warranty durations by 25% with an Integrity Maintenance Agreement • Product and Product/Workmanship options: Limited Warranty on Materials, Integrity Roof System® Limited Warranty, and Integrity Roof System No Dollar Limit (NDL) Limited Warranty Warranty durations are based on a combination of system specification and product selection.
Black diamond basesheet.

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