Standard Roof Tile Pitch

In the uk the typical house has a pitch between 40 50 although 45 should be avoided.

Standard roof tile pitch.

Some of the most common roof pitch types are conventional slope type roofs designed with pitch ranging from 4 12 to 9 12. 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. 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. Standards roofers must turn to local or state building codes when installing tiled roofs if they want their constructions to be approved for occupant use.

Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. Pitches above 9 12 are very highly angled and are designated steep slope roofs. For example a roof that rises 3 inches for every 12 inches has a pitch of 3 12. The most commonly used roof pitches fall in a range between 4 12 and 9 12.

Roof pitch varies depending on culture climate style and available materials. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. In the usa the range of standard pitches is anywhere between 4 12 and 9 12. These are utilized in residential applications.

Roof pitches exceeding the level of 9 12 or approximately 37 degrees are termed steep slope roofs.