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.

Covers pitched roof detail. Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction. Replacing a slate roof covering by a. An example of each is shown in figure 2 1.

Historically truss timbers have been bolted together or mortise and tenoned and then pegged. Ventilated roofspace eaves 3 02 timber frame pitched roof. Raised tie truss 3 3 3. Timber is a heavy material that adds strength to your roof but comes at quite the cost.

Part 3 pitched roof detail. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Gable a gable roof has a ridge at the center and slopes in two directions. Ventilated rafter void gable 3 04 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. A roof being framed in the united states circa 1955. Internal wall to internal wall junctions 3. It s considered heavy timber when.

Tank stand and walkway 3 3. Timber boarding on timber frame 1 9. Detail description 3 00 timber frame isometric cut away view 3 01 timber frame pitched roof. Below is a sketch of the original roof wall structural details for this building.

It is the form most commonly used by. The original roof was built using purlins beams extending between gable ends. The most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. Render on timber frame 2.

Part 2 pitched roof construction. Ventilated roofspace gable 3 03 timber frame pitched roof. The construction of the flat roof is similar to that of the timber upper floor. Bracing diagonal and longitudinal 3 4 1.

Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Ventilated batten void warm roof eaves. 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. Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions.

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.