Road American
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What technical requirements define difference between modified bitumen and rolled roofing for asphalt or bitumen modification?
Modified bitumen and rolled roofing differ primarily in their composition and application methods. Modified bitumen incorporates polymers, enhancing flexibility, UV resistance, and durability, making it suitable for extreme weather conditions. It typically requires heat or adhesive for installation. In contrast, rolled roofing is a simpler, less expensive option, often made from asphalt-saturated felt, and is applied using nails or adhesive. The technical requirements for modified bitumen include specific polymer content and installation techniques, while rolled roofing focuses on basic waterproofing properties.
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