Minimum Roof Pitch Uk Building Regs

Also i am woried about rain going under the tiles.

Minimum roof pitch uk building regs.

I am not sure if building control will allow this. All tiles have a minimum roof pitch which is always stated in the manufacturers technical information. The function of a roof is to protect the building below from the weather. Building regulations for insulating a roof heat rises and therefore the building regulations requirements for heat loss through roofs are more stringent than those for walls.

Choosing the right pitch. 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. Any advice would be appreciated. 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.

In accordance with the guidance in bs 8000 part 6 which in turn direct users to the wind uplift calculations in bs 5534. This will inevitably result in fixing calculations being required and complied with for all roofing projects covered by building regulations. What is the minimum roof pitch for a roof tile. 35 is considered to be the minimum for slate and clay but if you do need to go below this interlocking concrete tiles are the best option.

Deciding on the correct roof pitch for your home very much depends on the style of house you are building or renovating and to a lesser extent your local area. Our 5 web apps provide precompiled building regs specifications that can be compiled into a custom specification for your building projects. Sometimes the excitement of starting a new construction project or building venture can lead you to forget about the finer details such as planning permission and local building regulations. Pitch roof this is where tiles or slates are used and a void is usually created underneath.

A correctly build flat roof will drain the rainwater quickly and effectively into the gutters without allowing water to collect in depressions and pond on the surface of the roof leading to the build up of silt deposits on the roof and stresses in the membrane when the water freezes a small amount of ponding is inevitable and it should not reduce the performance of the roof covering. The limiting u value the maximise u value which cannot be exceeded required under current building regulations for the roof is 0 20w m. Make sure your comply with flat roof building regulations. Modern tiles permit shallow pitch but some of the older traditional coverings.

This minimum pitch is important if tiles are laid below the recommended minimum pitch there is an increased chance of water getting through which can damage the underlay and battens over a prolonged period. I ve calculated the propsed roof angle at 19 20 degrees. Does anyone know what is the minimum pitch allowed for a sloping roof to my extension. These things will affect the timing cost and overall running of your project.