Xtra-Gard Polytorch APP Torch-on Underlay – A cost effective 3mm thick polyester reinforced, APP polymer modified bitumen membrane. The upper and lower surfaces are is finished with a thermofusible film. Xtra-Gard Polytorch APP Underlay is intended for use as an underlay/intermediate layer within a bituminous built-up roofing system. The thermofusible film provides a quick and easy application.
Features & Benefits
• Polyester reinforcement
• Good lap security
• Superior bond strength with film selvedge
• Easy to cut with a sharp knife