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What technical requirements define commercial modified bitumen roofing chicago for asphalt or bitumen modification?
Commercial modified bitumen roofing in Chicago requires specific technical standards, including ASTM D6162 for polymer-modified bitumen sheets, ensuring durability and flexibility in varying temperatures. The roofing system must have a minimum thickness of 180 mils and incorporate a fiberglass or polyester reinforcement for added strength. Additionally, it should meet local building codes for wind uplift resistance and have a minimum granule coverage for UV protection, ensuring longevity and performance in the Chicago climate.
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