Flat Roof Timber Frame Construction

Sizes of joists needed for flat roof construction.

Flat roof timber frame construction.

As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. Having a manual for warm flat roof construction with details and a summary of rules to follow helps. The flat roof shown above shows warm deck roof construction.

So any timber joists that are used need to be strong enough to support this weight. It s been a couple of long days working solo to get it all up but it s rewarding stuff se. Roofs tend to be either pitched or flat and typically in residential construction timber is the most common material used. 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.

Old asbestos roofs are often replaced with flat roofs. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off. Timber flat roof carports timber flat roof construction timber flat roof construction details timber flat roof deck timber flat roof detail timber flat. For additional stability you can also use steel joists that are built into one or both of the walls.

The fall of the roof is achieved by using firring pieces with a fall of 1 in 40. The ceiling joists are used as the platform for the roof coverings. In this type of construction the insulation is placed below the waterproof covering and on top of the roof deck and vapour barrier.