Minimum Roof Pitch For Snow

Begin by measuring 12 inches on your level and marking it with a pencil.

Minimum roof pitch for snow.

You can safely measure the roof pitch from inside your attic with a level that is either 18 or 24 inches a tape measure and a pencil. However you can only use this pitch with built up roofing or specialized synthetic roofing. But since there is still a wide variety of slate roofing systems there are occasions when the minimum pitch can go down to as low as 15 0 depending on the uniqueness of the roof. If you are adding an addition to your home or installing skylights knowing the existing pitch is important.

The minimum pitch is typically 3 12 meaning the roof should rise 3 inches for every 12 inches of horizontal foot. The smallest pitch of a roof is 0 5 12. With regards to the pitch the building standard code bs 5534 recommends a minimum pitch of 20 0 for slate roofs. What is the smallest pitch of a roof.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Minimum roof pitch for shingles. Anything above that will require you to put out higher cost because they are already considered as higher pitch.