What is the minimum roof slope required for modified bitumen roofing?

The minimum roof slope required for modified bitumen roofing is typically 1/4 inch in 12. This slope helps ensure that water drains effectively off the roof, preventing water pooling that can lead to leaks and other structural issues. Modified bitumen roofing is designed for low-slope applications, and having this minimum slope facilitates proper drainage while still accommodating the material's installation specifications.

A slope of 1/4 inch in 12 provides sufficient drainage without being overly steep, which is crucial for long-term performance and durability of the roofing system. This slope also aids in the overall adhesion of the roofing materials, as water runoff will be managed appropriately, reducing the risk of damage over time.