Min Metal Building Roof Pitch

The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.

Min metal building roof pitch.

Panels joined with an applied lap sealant can go as low as 12. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope. Let us recap on the minimum roof pitch required for each type of roofing material. Pbr which is typically used for industrial metal buildings can be installed as low as half inch pitch for example.

The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12. After that the miimum pitch for metal panels depending on the methods used to join the panels. The minimum roof slope for metal roofs is dependent upon the roof profile. Minimum pitch for metal roof.

The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. The minimum pitch allowed for metal shingles is a 3 12 ratio whereas metal panelling can be applied down to a 1 12 ratio. Profiles with a higher ridge at the panel connections can be installed lower. Various materials can serve as sturdy roofing materials from metal sheets to clay tiles to protect the building from the elements.

For each type of roofing material you can see the actual language used in the model 2018 international building code at the international code council website. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. However you can only use this pitch with built up roofing or specialized synthetic roofing. Asphalt shingles require a minimum roof pitch of 2 12 or greater.

Corrugated metal roofing has the same minimum pitch. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Metal roof slope is expressed by a ratio indicating the roof pitch which notes the vertical rise of the roof in inches for every 12 inches the roof runs horizontally in other words dividing the vertical rise and its horizontal span. A typical low slope metal roof has at least 25 recycled content and at the end of its long useful life is 100 recyclable.

Not only can low slope metal roofing contribute to the bottom line it can also contribute to leed credits which are awarded to buildings that use high recycled content and other green construction materials. Metal roof shingles require a minimum roof pitch of 3 12 or greater.