Timber Roof Construction Details

Tank stand and walkway 3 3.

Timber roof construction details.

The valley is formed where the two. Internal wall to internal wall junctions 3. Boardsmust have a nominal thickness of min. Solid external masonry wall.

Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates. Timber boarding on timber frame 1 9. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions.

Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading. Tile hanging off timber frame 1 8. When constructing a pitched rooftop with timber this can be an incredibly labor intensive build. A truss roof using factory made trusses which are delivered to site complete and just erected.

150mm insulation 0 044w mk between rafters. 215mm aircrete solid wall λ 0 15 w mk render insulation λ 0 022 w mk pitched roof gable. Type of roof because it is braced by four hip rafters. 24 mm 20 and should have.

There are two basic methods of pitched roof construction. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof. 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. 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 framed and historic buildings may be framed with principal rafters or timber roof trusses. Timber frame standard details september 09 building 1 grosvenor court hipley street. Timber is a heavy material that adds strength to your roof but comes at quite the cost. 3 05 timber frame pitched roof.

The construction of the flat roof is similar to that of the timber upper floor. These hip rafters run at a 45 angle from each corner of the building to the ridge. Intersecting the intersecting roof consists of a gable and valley or hip and valley.