Roof Framing Members Nz

Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang.

Roof framing members nz.

Nearly all roofs are framed using one of two methods. They are inclined members spaced from 16 to 48 inches apart. The tops of inclined rafters are fastened to the ridge or another rafter depending on the type of roof. Stick truss roof framing.

Framework of all roofs. Rafters are inclined members spaced from 16 to 48 inches apart. Rafters are nailed to the plate not framed into it. Overhangs hips and dormers add greatly to the complexity of the framing.

Roof framing hip and gable roofs the roof structure was typically a nailed timber roof frame constructed on site in either a hipped or gabled configuration. Roof framing this is a part of the nzs 3604 2011 and more feature 1 june 2011 build 124. They vary in size depending on their length and spacing. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

They vary in size depending on length and spacing. Stick framed roofs utilize individual rafters that span from the top of exterior walls to the ridge. Standard stick framing or the newer truss framing. A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.

They do for the roof what the joists do for the floor and what the studs do for the wall. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Framing studs plates and dwangs between top plates and bottom truss chords or rafters on the outside edge of the purlins fix a 40 12 mm thick strip of eps behind steel members fixed to the outside of the wall frame such as soffit bearers. The rafters of a hipped roof which span between the ridge board hip rafter or valley rafter and the wall framing top plate may be common hip valley and jack rafters.

Rafters rest on the top wall plate. Materials for thermal breaks the r value of the thermal break used must be not less than 0 25. The members making up the main body of the framework of all roofs are called rafters.