Opus Roof Blanket by Propex, a new roof underlayment that can be used in place of felt paper and plastic sheeting underlayment for slope roofing installations, made its debut at the International Roofing Expo in New Orleans, La. Its slip-resistant surface makes it safer for roofing contractors to navigate sloped roofs under wet conditions. The tan-colored surface texture stays cool during installation, and roofers can snap chalk lines and write on the material. Propex. BD+C, February 23
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