Minimum Slope For Corrugated Plastic Roof

The most common disregard for engineering logic is the rule of minimum pitch for corrugated iron roofing.

Minimum slope for corrugated plastic roof.

The corrugated profile dates back to 1820 and it is the most used metal roof profile in the world. However you can only use this pitch with built up roofing or specialized synthetic roofing. Installing translucent plastic corrugated roof panels. Pre notch rafters to compensate for slope.

Courtesy the kemlite company. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.

Allow a 1 minimum pitch per foot for adequate drainage. 4 attach rafters to header and crossbeam with 1 screws and nails. Minimum pitch for corrugated metal roof. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.

If you have a metal roof on your house there is a good chance that it is made of corrugated iron roofing. Corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch.