What is the minimum roof slope required for installation of metal roof shingles?

The minimum roof slope required for the installation of metal roof shingles is 3 units vertical in 12 units horizontal. This specification is important because it helps ensure proper water drainage and prevents issues such as water pooling, which can lead to leaks and damage over time. A slope of 3:12 helps the shingles perform effectively by allowing rainwater to flow off the roof surface rather than becoming trapped.

While steeper slopes can enhance durability and performance, 3:12 is the minimum standard that balances performance with installability, making it a commonly accepted requirement in construction and roofing practices. This standard allows for adequate water runoff while still maintaining ease of installation for contractors.