Timber Roof Structure Detail

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.

Timber roof structure detail.

The original roof was built using purlins beams extending between gable ends. Replacing a slate roof covering by a. Ventilated roofspace gable 3 03 timber frame pitched roof. Load bearing or primary structure usually constructed in timber in a residential construction.

Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. A roof being framed in the united states circa 1955. It is the form most commonly used by. Internal wall to internal wall junctions 3.

Historically truss timbers have been bolted together or mortise and tenoned and then pegged. Ventilated batten void warm roof eaves. Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction. Below is a sketch of the original roof wall structural details for this building.

Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Part 2 pitched roof construction. Ventilated rafter void gable 3 04 timber frame pitched roof. Bracing diagonal and longitudinal 3 4 1.

Render on timber frame 2. An example of each is shown in figure 2 1. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions. Gable a gable roof has a ridge at the center and slopes in two directions.

It s considered heavy timber when. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates. The roof sheathing consisted of inch thick wide pine boards nailed to the purlins and thick enough to resist much sagging. Tank stand and walkway 3 3.

Part 3 pitched roof detail. When constructing a pitched rooftop with timber this can be an incredibly labor intensive build. The construction of the flat roof is similar to that of the timber upper floor. The most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.

Raised tie truss 3 3 3. Covers pitched roof detail. Timber framed and historic buildings may be framed with principal rafters or timber roof trusses. Ventilated roofspace eaves 3 02 timber frame pitched roof.

Detail description 3 00 timber frame isometric cut away view 3 01 timber frame pitched roof. 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.