Fleece-Backed Thermoplastic Membrane Exceeds Weathering Tests

KEE-Stone FB 60 fleece-backed thermoplastic membrane stands up agains harsh weather and UV radiation.

KEE-Stone FB 60 fleece-backed thermoplastic membrane stands up against harsh weather and UV radiation.

Garland has released the KEE-Stone FB 60 fleece-backed thermoplastic membrane which exceeds standard weathering tests and stands up against harsh weather and UV radiation. In accelerated weathering tests, KEE-Stone showed no signs of cracking or cratering even at 100 times magnification, which is 10 times more than the ASTM D 6745 standard requires. KEE-Stone’s compound, formulated using DuPont Elvaloy HP Ketone Ethylene Ester (KEE), provides resistance to UV degradation and heat resistance while retaining low-temperature flexibility, which translates into a lasting roof.

KEE enhances the performance of the PVC by permanently locking in its flexibility, eliminating plasticizer migration and allowing the membrane to remain tough and flexible throughout the entire lifecycle of the roof. Garland’s KEE-Stone membranes contain the KEE formulation throughout the entire sheet, further increasing its level of performance. The membrane is also reinforced with a polymer-coated scrim. The design of the scrim allows the KEE compound above and below the scrim to fuse together, imparting puncture, tear and tensile strength to the membrane.

Garland’s two-ply, hybrid KEE-Stone system will provide the protection of a traditional modified bitumen roof system with the appearance of a single-ply system.

For more information, visit here or call to be connected with your local Garland representative at 1.800.321.9336.