Roof Pitch Uk Regulations

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Roof pitch uk regulations.

Just like other metal roofs the minimum pitch for a corrugated metal roof largely depends on the profile of the roof. 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. According to the uk building regulations pitched roofs should achieve the u value of 0 18 w m2 depending on the circumstances. 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.

The pitch of your roof will not just have an effect on the way the house looks. A qualified roofing contractor will be able to advise on this but here are some of the main guidelines. The lower the pitch the greater the amount of water that the roof slope will collect and discharge. Shallow pitches are generally cheaper to construct with savings in both timber and tiling.

Pitch roof this is where tiles or slates are used and a void is usually created underneath. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. 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. There must be a slope of 1 80.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. 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. You carry out structural alterations. 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.

When installing or repairing a flat roof you must adhere to building regulations. You will need approval however if. Part h of the building regulations regarding drainage state that water should drain to one or two edges. 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.

Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off. Examples of pitched roofs a pitched or sloping roof has a pitch of at least 15 but often much more. 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. Metal roof shingles require a minimum roof pitch of 3 12 or greater.