Timber pitched rooftop construction details focus on the timber construction that is commonly used in most roofing constructions.
Timber roof detail.
Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.
Above these components is a rack of common rafters.
Flat roof joist and decking 3 10.
These hip rafters run at a 45 angle from each corner of the building to the ridge.
Modern timber roofs are mostly framed with pairs of common rafters or prefabricated wooden trusses fastened together with truss connector plates.
The roof is a key element of the building structure providing protection from the elements and has a vital role in reducing heat loss from the building.
Timber framed and historic buildings may be framed with principal rafters or timber roof trusses.
Ventilated batten void warm roof gable 3 06 timber frame timber flat roof 3 07 timber frame timber flat roof with parapet 3 08 timber frame lintel at window head 3 09 timber frame windows and doors jambs and cills specification within an example should 3 10 timber frame ground.
Parapet detail joists perpendicular 3 13.
Roof panels 3 8 1 roof panel connections 3 9.
3 05 timber frame pitched roof.
For additional stability you can also use steel joists that are built into one or both of the walls.
Dormer in section 3 11.
Dormer in perspective view 3 12.
When constructing a pitched rooftop with timber this can be an incredibly labor intensive build.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
The roof sheathing consisted of inch thick wide pine boards nailed to the purlins and thick enough to resist much sagging.
A disadvantage of the hip roof is that it is more difficult to construct than a gable roof.
Roofs tend to be either pitched or flat and typically in residential construction timber is the most common material used.
Below is a sketch of the original roof wall structural details for this building.
Intersecting the intersecting roof consists of a gable.
The building regulations in the uk provide guidance on roof design.
There is a hierarchy of timber framing at work here with trusses supporting the ridge and purlin beams.
A timber frame truss roof with ridge beam purlins and common rafters is a stunning combination that creates visual interest and structural complexity.
It is the strongest type of roof because it is braced by four hip rafters.
Intermediate floor joist parallel 4 3.
Timber is a heavy material that adds strength to your roof but comes at quite the cost.
Parapet detail joists parallel details in section 4.
