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.

Below is a sketch of the original roof wall structural details for this building. Bracing diagonal and longitudinal 3 4 1. Tank stand and walkway 3 3. The construction of the flat roof is similar to that of the timber upper floor.

Part 2 pitched roof construction. 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. Ventilated roofspace gable 3 03 timber frame pitched roof. Timber boarding on timber frame 1 9.

Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Timber is a heavy material that adds strength to your roof but comes at quite the cost. Gable a gable roof has a ridge at the center and slopes in two directions.

A roof being framed in the united states circa 1955. Load bearing or primary structure usually constructed in timber in a residential construction. Ventilated rafter void gable 3 04 timber frame pitched roof. Covers pitched roof detail.

Raised tie truss 3 3 3. Detail description 3 00 timber frame isometric cut away view 3 01 timber frame pitched roof. Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates. Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction.

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. 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. Ventilated roofspace eaves 3 02 timber frame pitched roof. Render on timber frame 2.

It is the form most commonly used by. Ventilated batten void warm roof eaves. It s considered heavy timber when. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions.

Historically truss timbers have been bolted together or mortise and tenoned and then pegged. Timber framed and historic buildings may be framed with principal rafters or timber roof trusses. Replacing a slate roof covering by a. The original roof was built using purlins beams extending between gable ends.

An example of each is shown in figure 2 1. When constructing a pitched rooftop with timber this can be an incredibly labor intensive build.