Road American
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What technical requirements define modified bitumen roof minimum slope for asphalt or bitumen modification?
The minimum slope for modified bitumen roofing is typically defined by industry standards, which recommend a slope of at least 1% (1/8 inch per foot) to ensure proper drainage. This slope helps prevent water pooling, which can lead to membrane deterioration. Additionally, local building codes and manufacturer specifications may impose specific requirements based on the type of modified bitumen used and environmental conditions. Always consult relevant guidelines for precise requirements.
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