Timber Roof Structure Detail

Covers pitched roof detail.

Timber roof structure detail.

Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates. Timber is a heavy material that adds strength to your roof but comes at quite the cost. Timber boarding on timber frame 1 9.

Timber framed and historic buildings may be framed with principal rafters or timber roof trusses. The minimum sizes are 6 x 8 for a column supporting a roof 8 x 8 for a column supporting a floor 6 x 10 for a floor beam 8 x 8 for a roof truss member 4 x 6 for a roof beam 3 1 finish floor decking 2 roof decking according to the building code. It is the form most commonly used by. Each modern roof truss is designed and made for a particular position in the roof structure and is made up of butt jointed timber lengths typically nailed together using plate fastenings no type of timber joint being used.

Bracing diagonal and longitudinal 3 4 1. Detail description 3 00 timber frame isometric cut away view 3 01 timber frame pitched roof. An example of each is shown in figure 2 1. A roof being framed in the united states circa 1955.

Below is a sketch of the original roof wall structural details for this building. When constructing a pitched rooftop with timber this can be an incredibly labor intensive build. It s considered heavy timber when. Render on timber frame 2.

As each truss is designed to form part of the complete roof structure they should never be cut modified or their use changed i e. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Internal wall to internal wall junctions 3. The original roof was built using purlins beams extending between gable ends.

Ventilated roofspace eaves 3 02 timber frame pitched roof. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Ventilated rafter void gable 3 04 timber frame pitched roof. Replacing a slate roof covering by a.

Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction. Load bearing or primary structure usually constructed in timber in a residential construction. The roof sheathing consisted of inch thick wide pine boards nailed to the purlins and thick enough to resist much sagging. The most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.

Part 2 pitched roof construction. Ventilated batten void warm roof eaves. Historically truss timbers have been bolted together or mortise and tenoned and then pegged. Part 3 pitched roof detail.

Raised tie truss 3 3 3. Ventilated roofspace gable 3 03 timber frame pitched roof.