Minimum Pitch For Tiled Roof Building Regulations

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater.

Minimum pitch for tiled roof building regulations.

The minimum roof slope allowed by code for any type of roofis in 12 applicable only to coal tar pitch roof systems. Mass nominal mass per tile. 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. These linings are applied starting at and parallel to the eaves in 36 inch wide strips with a 19 inch overlap for successive sheets.

Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. The irc recommends a minimum pitch of 2 5 12 for these materials. Factors affecting minimum roof pitch. Ratios from that minimum up to 4 12 which are considered low pitch require double underlayment.

Metal roof shingles require a minimum roof pitch of 3 12 or greater. Set out nominal batten spacing. 337mm min 362mm max it is good tiling practice to check the gauge of all kiln fired clay roof tiles at the site. Entailed in this document only relate to monier tiled roofs of buildings that are intended for domestic commercial or light industrial purposes for wind classifications n1 n4 and c1 c3 inclusive with a roof pitch of 12 degrees or greater depending on profile.

Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. Minimum roof pitch15 with sarking and 20 without sarking. Modern tiles permit shallow pitch but some of the older traditional coverings such as hand made clay tiles require quite steep slopes to ensure rain does not penetrate the roof covering. Shallow pitches are generally cheaper to construct with savings in both timber and tiling.

Due to the fact that there are many roofing styles and different kinds of roofing materials there is no universal minimum roof pitch. For projects outside the scope of these guidelines your.