Minimum Pitch Corrugated Plastic Roof

Courtesy the kemlite company.

Minimum pitch corrugated plastic roof.

It is the recommended slope as there is no guarantee if you opt for flatter pitch than this. Just like other metal roofs the minimum pitch for a corrugated metal roof largely depends on the profile of the roof. That is why all roofing manufacturers recommend the 5 degree pitch as the minimum slope and they will not provide any guarantees if it is installed flatter than this. However you can only use this pitch with built up roofing or specialized synthetic roofing.

Corrugated metal roofing has the same minimum pitch. Corrugated roofing is a great material on traditional pitched roofs but it has severe limitations when the pitch gets below 5 degrees. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. The corrugated metal roof minimum slope is 5 degrees.

Allow a 1 minimum pitch per foot for adequate drainage. In most occasions a pitch of three in twelve is preferred but this should also take into consideration the manufacturer s recommendations as well the unique condition of the corrugated metal roof. Installing translucent plastic corrugated roof panels. Corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch.