Flintlastic® GMS

Overview
CertainTeed's workhorse granulated, mop-applied, SBS-modified bitumen cap sheet, Flintlastic GMS, is valued for its high elasticity and decades of consistent quality. This 145 mil membrane is manufactured with a resilient polyester reinforcement, offering exceptional durability and resistance to weathering. GMS is available in three true-blend colors designed to complement popular shingles.

Face it - some old dogs don't need new tricks, and CertainTeed hot asphalt and cold adhesive 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 what works and spend the time to install peace-of-mind.

Reach out to your local CertainTeed Territory Manager to request a sample and demonstration of Flintlastic GMS.

Features & Benefits

Quick Specs
- SBS-modified
-Polyester reinforcement
-93 lbs
-1 Square
-3.7 mm (145 mils)

Performance
-Meets or exceeds ASTM D6164 Grade G, Type I
-Pliable even in cold temperatures
-Excellent elongation/recovery

Why Buy
-Tried and true modified bitumen protection

Warranty
-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.