Slope Roof Tile Regulations

Employers must provide the right equipment employers must provide fall protection and the right equipment for the.

Slope roof tile regulations.

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. For pitches of 2 5 12 up to 4 12 the roof requires double underlayment. Run in degrees and as percentage the minimum roof slope allowed by code for any type of roofis in 12 applicable only to coal tar pitch roof systems. Bs5534 is the code of practice for installing slates and tiles to new build pitched roofs and vertical cladding.

According to this code the minimum slope for asphalt shingles is 17 degrees or two vertical units to twelve units in the horizontal. In general there is no maximum slope for tile roofs. Although it s not a legal requirement a roof specified to the code of practice can be upheld by law so you should refer to the complete bs 5534 document or seek advice from the manufacturer. Clay or cement tiles can be used on a wide range of roof pitches.

If the roof is close to a boundary which is often the case the roof should also have properties to limit the risk from fire spreading across the boundary. To calculate roof pitch take the lowest point of the roof and measure the amount of rise for every 12 inches of horizontal movement toward the highest point. The slope of the roof is measured by the vertical rise of the roof to the horizontal run and is expressed as a fraction. With a pitched roof the type of tile or slate you wish to use will be partly governed by how steep or shallow the slope is.

4 12 to 20 12 pitches. A low pitched roof is easier to put up and maintain but may show very little of its material at ground level. The following tableprovides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The requirements for an asphalt shingles roof are contained in the international building code.

A 4 12 roof slope means the roof rises 4 feet for every 12 feet of horizontal roof span. For example a roof that rises 3 inches for every 12 inches has a pitch of 3 12. On slopes less than 3 1 2 12 roofing tile is considered decorative only. The underlying roof provides all the necessary waterproofing.

Roof slope equivalents as rise. Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle. Steep roof above 4 12 slope 29 cfr 1926 501 b 11. Know the pitch of the roof and follow the appropriate standard.