Minimum Pitch For Barrel Tile Roof

Mass nominal mass per tile.

Minimum pitch for barrel tile roof.

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. 355mm it is good tiling practice to check the gauge of all kiln fired clay roof tiles at the site. 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. The irc recommends a minimum pitch of 2 5 12 for these materials.

Clay and concrete roof tiles can only be installed on roof slopes of 2 1 2 12 or greater. Clay tiles are colorfast which means their tints improve rather than fade over time. 295mm on 38mm x 38mm battens. In general there is no maximum slope for tile roofs.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. Set out nominal batten spacing. However on extremely steep roofs above 19 12 or on vertical applications wind currents may cause tiles to rattle. Concrete is long lasting with a minimum lifespan of 50 years depending on climate.

Minimum roof pitch18 with sarking and 20 without sarking. 3 2kg mass per sq m. Minimum roof slope roof pitch r905 3 2. Ratios from that minimum up to 4 12 which are considered low pitch require double underlayment.

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.