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CertainTeed's polyester-reinforced, smooth-surfaced, mop-applied, SBS-modified base sheet, Flintlastic® Poly SMS, is both robust and resilient and delivers the benefits of a homogenous roof system when paired with SBS-modified bitumen cap sheets such as Flintlastic® GMS, Flintlastic® FR-P and Flintlastic® Premium FR-P. Many members of the design and specification community prefer multi-layer modified bitumen roof systems constructed with the same polymer-modified material and application methodology for base and/or interply and cap sheets, to optimize stress resistance to the roof system with materials expanding and contracting at the same rate. This 80 mil base sheet is manufactured with a high performance, stress resilient polyester reinforcement with excellent elasticity and recovery. The polyester mat is saturated and coated with an SBS-modified asphalt with elastic, waterproofing properties. Flintlastic® Poly SMS can be mechanically attached but is more commonly mopped...See More

Features & Benefits

Quick Specs
• SBS-modified base ply • Polyester reinforcement • 89 lbs. • 2 Squares • 2.0 mm (80 mils)
• Meets or exceeds ASTM D4601, Type II • Pliable even in cold temperatures • Excellent elongation/recovery
Why Buy
• Projects where mopped, SBS-modified bitumen roof system is preferred or specified • Tried and true modified bitumen protection • Robust base ply allows for extended warranties when mopped in hot asphalt or cold adhesive
• 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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