Recovering Flat Roof Building Regulations

Tion loads indicates a building s roof struc ture needs to be capable of supporting the roof system plus equipment loads and the weight of stored material on the rooftop dur ing roofing operations.

Recovering flat roof building regulations.

Before recovering a roof that requires building regulation approval you must submit a building notice at least 48 hours prior to commencing the work on site which must be accompanied by the fee charged by your local authority building control office. You will need approval however if. You carry out structural alterations. Section 1510 3 recovering versus re reroofing 2010 placement explains the specific requirements where roof system re covering is not appro.

Recovering roofs the changes to approved document l coming into effect 6thapril 2006 the building regulations were amended to accommodate the renovation of a thermal element this would include. When installing or repairing a flat roof you must adhere to building regulations. There must be a slope of 1 80. If a roof has only one layer of shingles that lay flat and the decking is in good condition a tear off may not be needed.

The performance of the new covering will be significantly different to that of the existing covering in the event of a fire. Another factor influencing whether or not a recover project is feasible is establishing how many roof systems or layers are currently in place which requires making inspection openings. If the existing roof covering is to be replaced with a different material to its original for example slate to tiles then approval under the building regulations is likely to be needed to ensure the roof will be adequate in terms of structural stability applicable where the replacement tile will be significantly heavier or lighter than the existing and also meets requirements in respect of fire safety and energy efficiency see above. Although each roof must be evaluated individually general guidelines can help make an informed decision whether to replace or recover an existing asphalt shingle roof.

So if your flat roof is a small extension to your house ie 25 of the total roof area you should be ok to carry out the work however given you re. A qualified roofing contractor will be able to advise on this but here are some of the main guidelines. For further information contact the building regulations division. Most modern building codes allow a maximum of two non ballasted roof systems on a structure mostly due to the weight associated with the roofing materials.

Iirc its 25 of the complete building roof.