Timber Roof Construction Details

When constructing a pitched rooftop with timber this can be an incredibly labor intensive build.

Timber roof construction details. Boardsmust have a nominal thickness of min. These hip rafters run at a 45 angle from each corner of the building to the ridge. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. Type of roof because it is braced by four hip rafters.

Intersecting the intersecting roof consists of a gable and valley or hip and valley. 3 05 timber frame pitched roof. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof. There are two basic methods of pitched roof construction.

24 mm 20 and should have. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Timber frame standard details september 09 building 1 grosvenor court hipley street.

A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions. Render on timber frame 2. Tile hanging off timber frame 1 8.

Tank stand and walkway 3 3. The construction of the flat roof is similar to that of the timber upper floor. Internal wall to internal wall junctions 3. Timber boarding on timber frame 1 9.

Timber is a heavy material that adds strength to your roof but comes at quite the cost. Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading. A truss roof using factory made trusses which are delivered to site complete and just erected. The valley is formed where the two.

Ventilated batten void warm roof gable 3 06 timber frame timber flat roof 3 07 timber frame timber flat roof with parapet 3 08 timber frame lintel at window head 3 09 timber frame windows and doors jambs and cills specification within an example should 3 10 timber frame ground bearing floor insulation above slab 3 11 timber frame ground bearing floor insulation below slab. Having a manual for warm flat roof construction with details and a summary of rules to follow helps. Timber framed and historic buildings may be framed with principal rafters or timber roof trusses.