LeakBarrier EasyTorch APP Smooth is a premium, APP modified, polyester reinforced, smooth surfaced, modified bituminous roofing membrane designed for installation by heat welding. EasyTorch APP Smooth is specially formulated using select asphalt and Atactic polypropylene modifiers, and is reinforced with a tough, non-woven polyester mat that provides exceptional strength and durability. The exposed side is surfaced with fine sand and the backside is protected with polyolefinic film to facilitate ease of application via torching.