Minimum Pitch For Slope Roof

The minimum pitch is typically 3 12 meaning the roof should rise 3 inches for every 12 inches of horizontal foot.

Minimum pitch for slope roof.

The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. If a roof slope rises say 4 inches when measured 12 inches along the bottom of a horizontal roof truss the roof slope is said to be 4 12. That works out to about nine degrees if that works better for you. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.

The minimum requirement is 2 12. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Shingles of all types need to have a slope to function properly. The standard of lower pitch actually ranges between 1 12 to 5 12.

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Note that roof pitch is sometimes used in parallel with roof slope. The metal roof minimum slope doesn t stray far from other building with different material. I e 4 inches of rise per 12 inches one foot of run.

However roof pitch is technically measured and defined differently. What is the minimum pitch slope of an asphalt shingle roof.