Roof Pitch Uk Regulations

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.

Roof pitch uk regulations.

The lower the pitch the greater the amount of water that the roof slope will collect and discharge. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. Improve your home insulation with our high quality insulation products. According to the uk building regulations pitched roofs should achieve the u value of 0 18 w m2 depending on the circumstances.

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. As a result the tiles must be able to cope particularly at the lower end of the slope with the greater expected volume of water and lower speed of water movement without risk of leakage 10 of t. A qualified roofing contractor will be able to advise on this but here are some of the main guidelines. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater.

Just like other metal roofs the minimum pitch for a corrugated metal roof largely depends on the profile of the roof. Metal roof shingles require a minimum roof pitch of 3 12 or greater. Call us today visit our online store or contact us for assistance by email. 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.

Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off. You carry out structural alterations. There must be a slope of 1 80. Pitch roof this is where tiles or slates are used and a void is usually created underneath.

Examples of pitched roofs a pitched or sloping roof has a pitch of at least 15 but often much more. You will need approval however if. A typical roof pitch in the uk for a traditional house will be 40 50 but at the extreme can go up to 70 above 70 would actually be called a wall. If you want to carry out repairs on or re cover less than 25 per cent of the area of a pitch or flat roof you will not normally need to submit a building regulations application.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. In most occasions a pitch of three in twelve is preferred but this should also take into consideration the manufacturer s recommendations as well the unique condition of the corrugated metal roof. Shallow pitches are generally cheaper to construct with savings in both timber and tiling. When installing or repairing a flat roof you must adhere to building regulations.