What is the minimum acceptable slope for clay units roofing?

The minimum acceptable slope for clay units roofing is indeed specified as 2 1/2 units in 12. This slope is important as it helps ensure proper drainage of water, which is crucial for maintaining the integrity and longevity of the roof. A steeper slope assists in preventing water from pooling, which can lead to leaks and structural damage over time.

When clay tiles are installed on a flatter roof, there is a higher risk that water may not sufficiently drain away, increasing the potential for issues such as mold, rot, and roof failure. Therefore, the guideline mandates this minimum slope to create a reliable and functional roofing system.

In contrast, slopes that are less than this minimum can compromise the roof's performance, leading to subsequent maintenance issues and failures.