Timber Roof Structure Detail

The roof sheathing consisted of inch thick wide pine boards nailed to the purlins and thick enough to resist much sagging.

Timber roof structure detail.

An example of each is shown in figure 2 1. The original roof was built using purlins beams extending between gable ends. Detail description 3 00 timber frame isometric cut away view 3 01 timber frame pitched roof. It s considered heavy timber when.

Covers pitched roof detail. Internal wall to internal wall junctions 3. When constructing a pitched rooftop with timber this can be an incredibly labor intensive build. Part 2 pitched roof construction.

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. A roof being framed in the united states circa 1955. Bracing diagonal and longitudinal 3 4 1. Ventilated roofspace gable 3 03 timber frame pitched roof.

Ventilated rafter void gable 3 04 timber frame pitched roof. Below is a sketch of the original roof wall structural details for this building. Part 3 pitched roof detail. Timber boarding on timber frame 1 9.

Ventilated roofspace eaves 3 02 timber frame pitched roof. Timber framed and historic buildings may be framed with principal rafters or timber roof trusses. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. 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.

Historically truss timbers have been bolted together or mortise and tenoned and then pegged. Replacing a slate roof covering by a. The construction of the flat roof is similar to that of the timber upper floor. 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.

Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction. Tank stand and walkway 3 3. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions. Timber is a heavy material that adds strength to your roof but comes at quite the cost.

Render on timber frame 2. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Load bearing or primary structure usually constructed in timber in a residential construction.

It is the form most commonly used by. Raised tie truss 3 3 3.