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MODIFIED BITUMEN: TOP CHOICE FOR RESIDENTIAL FLAT ROOFS Just peel off the release paper and stick down the membane. This ease of installation makes self-adhering bitumen roofing very attractive to residential contractors. If there is one characteristic that separates commercial builders from residential, it's roofing systems. Residential tradesmen have never taken a liking to flat roofs. The key difference is that sloped-roofing products shed water, whereas low-slope roofing products must be waterproof. But as remodeling continues to grow and because many room additions would be so much simpler with flat roofs, it's time to look seriously at low-slope roofing products for residential construction, and at modified bitumens, in particular. Of all the low-slope roofing products on the market, modified bitumen