Minimum Roof Pitch Degrees

Anything above that will require you to put out higher cost because they are already considered as higher pitch.

Minimum roof pitch degrees.

Minimum pitch slope of an asphalt shingle roof shingles of all types need to have a slope to function properly. Minimum roof pitch for shingles it is important for shingle roofs to function properly and one method of ensuring that this is achieved is to observe the pitch requirements for the shingles. The minimum pitch is typically 3 12 meaning the roof should rise 3 inches for every 12 inches of horizontal foot. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.

It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5. That works out to about nine degrees if that works better for you. Minimum required roof slope for roofing materials. The standard of lower pitch actually ranges between 1 12 to 5 12.

In the usa the range of standard pitches is anywhere between 4 12 and 9 12. The minimum requirement is 2 12. The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span. In 12 0 25 in 12 1 19 built up roof coal tar pitch.

Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15. Roofing material or system. Roof pitch varies depending on culture climate style and available materials. In the uk the typical house has a pitch between 40 50 although 45 should be avoided.

Minimum required slope x in 12 minimum required slope degrees asphalt shingles. It is agreed that the roof pitch should be a minimum of 20 degrees preferably a bit more.