Timber Roof Construction Details

Common rafters are the main timbers used to build a gable roof and are in almost every hipped roof construction as well facia soffit construction click here for help installing fascia soffit boards that finish the bottom of the rafter feet off neatly and provide something for your gutters to fix to.

Timber roof construction details. 24 mm 20 and should have. Intersecting the intersecting roof consists of a gable and valley or hip and valley. Timber boarding on timber frame 1 9. The valley is formed where the two.

3 05 timber frame pitched roof. Timber in the form of rough sawn or planedboards or planks can be used as the loadbearing deck to a flat roof fig. When constructing a pitched rooftop with timber this can be an incredibly labor intensive build. Render on timber frame 2.

Boardsmust have a nominal thickness of min. Internal wall to internal wall junctions 3. 215mm aircrete solid wall λ 0 15 w mk render insulation λ 0 022 w mk pitched roof gable. Tile hanging off timber frame 1 8.

A truss roof using factory made trusses which are delivered to site complete and just erected. 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. Timber frame standard details september 09 building 1 grosvenor court hipley street. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof.

Type of roof because it is braced by four hip rafters. Timber framed and historic buildings may be framed with principal rafters or timber roof trusses. Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading. These hip rafters run at a 45 angle from each corner of the building to the ridge.

Tank stand and walkway 3 3. 150mm insulation 0 044w mk between rafters. 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. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates.

The construction of the flat roof is similar to that of the timber upper floor. Timber is a heavy material that adds strength to your roof but comes at quite the cost. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions.