Flat Roof Timber Frame Construction

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Flat roof timber frame construction.

Timber has been the traditional material for building roofs as far back as early saxon times and beyond. The roof is a key element of the building structure providing protection from the elements and has a vital role in reducing heat loss from the building. Finally feel like we are slowly getting back to an actual building. These things will affect the timing cost and overall running of your project.

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It is still the roof material of choice for housebuilders and self builders irrespective of whether they are building in traditional or contemporary styles or whether they are creating pitched or flat roofs. When installing or repairing a flat roof you must adhere to building regulations. Having a manual for warm flat roof construction with details and a summary of rules to follow helps. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

Timber roof designing buildings wiki share your construction industry knowledge. The ceiling joists are used as the platform for the roof coverings. The fall of the roof is achieved by using firring pieces with a fall of 1 in 40. So any timber joists that are used need to be strong enough to support this weight.

The flat roof shown above shows warm deck roof construction. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. Where a new flat roof abuts an existing external wall the joists can be hung on metal joist hangers which are fixed to a horizontal timber plate wall bolted to the wall. Sizes of joists needed for flat roof construction.

For additional stability you can also use steel joists that are built into one or both of the walls.