Flat Roof Regulations Uk

A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.

Flat roof regulations uk.

When installing or repairing a flat roof you must adhere to building regulations. You will need approval however if. Maintenance all parts of a building benefit from care and regular checks. There must be a slope of 1 80.

Flat roofs were uncommon in the uk until after the second world war. To comply with part l of the building regulations 2010 all roofs to rooms except those in unheated buildings should be thermally insulated to a maximum u value of of 0 18 w m k. In bs 6229 a roof is defined as flat if it has an overall pitch of 10 degrees or less. Flat roofs some repairs to flats roofs will not require an application for approval under the building regulations.

The two variations of flat roof usually flat roof constructions are defined as either cold or warm depending on how the thermal insulation is positioned in the construction. You carry out structural alterations. If occasional access is required e g. However if the roof with integral insulation is to be replaced then you may be required to upgrade this thermal element of the structure and reduce the amount of heat that was originally lost by upgrading the insulation.

Most flat roof systems will meet the regulations but check with your contractor. Consult your local authority if you are planning a new flat roof. It must provide adequate protection against the elements keeping the buildings structure and interior dry. A flat roof must be strong durable and stable throughout its lifetime.

A qualified roofing contractor will be able to advise on this but here are some of the main guidelines. A guide to flat roof options. Always follow a safe system of work using a platform beneath the roof where possible. When choosing a flat roof you need to take a number of considerations into account including the look you want to achieve the size of your flat roof the type of weather it ll face and the amount of labour it will require.

We recommend limited access unless the roof is designed for it. The preferred design of a flat roof fall is 1 40 although this can vary and be anywhere down to 1 80. Part h of the building regulations regarding drainage state that water should drain to one or two edges. This depends on the site upon which the structure has been built.

U value of a flat roof. The performance of the new covering will be significantly different to that of the existing covering in the event of a fire. 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.