RPM Roofing has tested and is now manufacturing our new low cost roofing alternative produced from 100% recycled plastic that will be competitively priced for the first time with asphalt shingles, the highest selling roofing material in the country RPM Roofing has now developed a proprietary substrate that can be molded into three primary roofing products: simulated slate, simulated cedar shake, barrel tile and flat tile RPM Roofing has now expanded our operations to produce and sell plastic roofing tiles with a 75,000 sq Free RPM Roofing Sample Pac We also continue to improve our current roofing tile products by making them lighter and also intend to introduce a heavy rock slate shingle similar to our current slate tile roof but with a thicker looking appearance, this is very popular in the Midwest and Northeast sections of the country