Road American
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How does what is the minimum roof slope required for modified bitumen roofing impact performance in modified asphalt or bitumen applications?
The minimum roof slope required for modified bitumen roofing typically ranges from 1% to 2% (1/8″ to 1/4″ per foot). This slope is crucial for effective water drainage, preventing water pooling that can lead to leaks and membrane deterioration. Insufficient slope may compromise the roofing system’s performance, increasing the risk of moisture infiltration and reducing the lifespan of the roofing materials. Proper slope ensures optimal drainage and enhances the overall durability of modified asphalt applications.
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