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Flintglas® Ply 4 is a functional building block within CertainTeed's built-up roof systems. Built-up roofing or BUR derives its unparalleled strength by building up layers of ply sheets and hot asphalt. Ply sheets are set in hot asphalt and layered, ply/asphalt/ply/asphalt. The asphalt flows through the plies and coats them, curing to an incredibly robust, watertight roof system. This 24 mil sheet is manufactured with an extra strength fiberglass reinforcement, offering exceptional dimensional stability. The top, weathering layer of a Flintglas® Ply 4 built-up roof system can be a surfacing of flood coat and gravel or Flintglas MS Cap Sheet. Face it - some old dogs don’t need new tricks, and CertainTeed hot asphalt low-slope roof systems have consistently delivered on the promise of protection for generations. These systems offer multiple watertight layers with unparalleled bond strength. So when the risk of a roof leak means more than just a maintenance nuisance, trust wha...See More

Features & Benefits

Quick Specs
• Permeable, non-modified ply Sheet • Fiberglass reinforcement • 36 lbs. • 5 Squares • 0.6 mm (24 mils)
• Meets or exceeds ASTM D2174, Type IV and UL G1 • Strong • Easy to handle
Why Buy
• Projects where built-up roof system is preferred or specified • Preferred by hot mop installers • Tried and true multi-layer asphaltic protection
• 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.

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