Roof Framing Members

Overhangs hips and dormers add greatly to the complexity of the framing.

Roof framing members.

The nominal design. To note that the density of the roof framing member must be taken into account when determining fastener spacing. 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. Nearly all roofs are framed using one of two methods.

Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Strutting beams should only support roof loads and not be used as ceiling joists. The roof framing is the structure that supports your roof.

Roof framing depends on the type of roof you want to build. Bending for a roof floor or wall surface. Rafters are inclined members spaced from 16 to 48 inches apart. Below we give the locations and functions of various roof framing members rafter types collar ties rafter ties ceiling joists and structural ridge beams.

It is a waterproofing layer made of regular felt stacked above the solid. Stick truss roof framing. They vary in size depending on their length and spacing. The tops of the inclined.

Standard stick framing or the newer truss framing. Let s strip away the roof and wall coverings of a home and identify some of the more common roof framing members. The gable roof hip roof gambrel roof flat roof shed roof mansard roof and many more custom roof types. 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.

There are several roof types. We ll start with a conventionally framed roof in which individual roof framing members are cut and assembled on site. The members making up the main body of the framework of all roofs are called rafters. They transfer the load of the roof to load bearing walls.

You ll be evaluating the roof framing from inside the attic space but we have an advantage in technology. 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. Most wood used in light frame residential construction takes the form of dimension lumber.

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.