Roof Framing Members

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.

Roof framing members.

Stick truss roof framing. The tops of the inclined. Nearly all roofs are framed using one of two methods. Standard stick framing or the newer truss framing.

The roof framing is the structure that supports your roof. You ll be evaluating the roof framing from inside the attic space but we have an advantage in technology. Rafters vary in depth depending on their length the distance they are spaced apart their slope and the kind of roof covering to be used. Here is a closer look at common roofing terms.

A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Roof framing involves a lexicon all its own. They do for the roof what the joists do for the floor and what the studs do for the wall. 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.

They vary in size depending on their length and spacing. Stick framed roofs utilize individual rafters that span from the top of exterior walls to the ridge. Rafters serve the same purpose in the roof as joists in the fl oor or studs in the wall. Overhangs hips and dormers add greatly to the complexity of the framing.

The members making up the main body of the framework of all roofs are called rafters. A rafteris an inclined member of the roof framework. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Below we give the locations and functions of various roof framing members rafter types collar ties rafter ties ceiling joists and structural ridge beams.

Rafters are inclined members spaced from 16 to 48 inches apart. Strutting beams support the roof members where there are no load bearing wall studs available. They are usually spaced 16 or 24 apart. As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more.

The gable roof hip roof gambrel roof flat roof shed roof mansard roof and many more custom roof types. There are several roof types. They transfer the load of the roof to load bearing walls. Let s strip away the roof and wall coverings of a home and identify some of the more common roof framing members.

Strutting beams should only support roof loads and not be used as ceiling joists. It is a waterproofing layer made of regular felt stacked above the solid. We ll start with a conventionally framed roof in which individual roof framing members are cut and assembled on site.