Flat Roof Fall Building Regs

A qualified roofing contractor will be able to advise on this but here are some of the main guidelines.

Flat roof fall building regs.

There must be a slope of 1 80. It is a requirement of building regulation part h that adequate provision is made for rainwater to be carried from the roof of the building. If flat roofs are to work well they have to have a slope known as a fall to shed rainwater. The building regulations for flat roofs can seem like a lot to understand which is why we have put together a simple guide of the things you need to know about when it comes to considering the building regulations for flat roofs.

According to bs 6229 bs 8217 flat roofs should be designed with minimum falls of 1 40 to ensure a finished fall of 1 80 can be achieved allowing for any inaccuracies in the construction. When installing or repairing a flat roof you must adhere to building regulations. Protecting roofing workers 5. Because the desired fall may be difficult to achieve in practice the designer may need to adopt a design fall considerably steeper often twice than the recommended finished fall.

With regard to fall protection requirements applicable to the construction work itself 1926 501 b 10 low slope roofs requires conventional fall protection a combination of a monitoring system and warning line or on roofs of 50 feet or less in width a monitoring system alone i e without a warning line be used. Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off. In bs 6229 a roof is defined as flat if it has an overall pitch of 10 degrees or less. Part h of the building regulations regarding drainage state that water should drain to one or two edges.

The building regulations encourage a minimum fall of 1 40 i e. The building regulations encourage a minimum fall of 1 40. Regulations and the general duty clause. How are flat roofs defined.

To enable compliance with the requirements of the building regulations to be demonstrated full details of the new roof will be needed including materials and their dimensions and performance properties. There is also the scope to incorporate a green roof onto the flat structure. What pitch is a flat roof. Here are some basic ideas for developing fall protection strategies for roofing operations.

40 units in length for every one unit drop in height although the minimum fall required according to bs 6229 a british standard for flat roofs is a shallower 1 80. Cover photo courtesy of the national roofing contractors association.