Roof Framing Members

The members making up the main body of the framework of all roofs are called rafters.

Roof framing members.

Let s strip away the roof and wall coverings of a home and identify some of the more common roof framing members. Relatively dense framing such as is achieved with southern yellow pine members holds fasteners better than lower density framing such as spruce pine fir members and may allow for wider spacing of fasteners. Framers stick building a hip roof you can learn a great deal about roof framing by understanding the concepts of framing a gable or shed roof. Roof framing depends on the type of roof you want to build.

Rafters are inclined members spaced from 16 to 48 inches apart. You ll be evaluating the roof framing from inside the attic space but we have an advantage in technology. Below we give the locations and functions of various roof framing members rafter types collar ties rafter ties ceiling joists and structural ridge beams. Stick framed roofs utilize individual rafters that span from the top of exterior walls to the ridge.

They transfer the load of the roof to load bearing walls. The nominal design. Standard stick framing or the newer truss framing. There are several roof types.

Nearly all roofs are framed using one of two methods. 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. The tops of the inclined. It is a waterproofing layer made of regular felt stacked above the solid.

The gable roof hip roof gambrel roof flat roof shed roof mansard roof and many more custom roof types. The loads acting on a framing member or system are usually calculated in accordance with the applicable provisions of the locally approved building code and engineering standards. Overhangs hips and dormers add greatly to the complexity of the framing. They vary in size depending on their length and spacing.

Strutting beams should only support roof loads and not be used as ceiling joists. They do for the roof what the joists do for the floor and what the studs do for the wall. Bending for a roof floor or wall surface. We ll start with a conventionally framed roof in which individual roof framing members are cut and assembled on site.

To note that the density of the roof framing member must be taken into account when determining fastener spacing. Strutting beams support the roof members where there are no load bearing wall studs available. 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. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

The roof framing is the structure that supports your roof.