Roof Framing Terminology

Most roofs utilize 16 inch spacings for strength and rigidity.

Roof framing terminology.

Joist parallel framing member installed horizontally to support floor and ceiling loads. Stick frame roof framing member supports sheathing. The end rafters that form the outside edge of the roof s rake overhang. With wood shingles or shakes this is the thicker end.

Don vandervort hometips. Some of these can support the roof and prevent ridge sagging and wall spreading. The rafters are usually positioned directly above the wall studs. Similar to joists but inclined rising from the eaves f oot to the ridge h ead.

Here is a closer look at common roofing terms. Header a beam placed perpendicular to wall suds above doors windows or other openings to carry the weight of structural loads. Can be sheet good materials of plank sheathing. An example of each is shown in figure 2 1.

Collar ties rafter ties tension beams structural ridge beams. This is to help prevent deflection and sag in the roof. However green building uses a single top plate and ensures that rafters and ceiling joists sit on the plate directly over the studs. Also refereed to as roof decking attaches to rafters or top cord of truss.

When working on a roof it pays to be familiar with these terms. It is simple in design economical to construct. Sometimes referred to as common rafters. The exposed end of a shingle.

Like wall studs and floor joists rafters and trusses are spaced every 16 or 24 inches from center to center. Gable a gable roof has a ridge at the center and slopes in two directions. Terms in this set 20 rafter. Top plate or plates in conventional western platform framing there are two top plates.

A building s frame is the skeleton that supports all of the finishing features like drywall doors windows and even your roof. Manufactured structural roof frame member composed of bottom cord top cord and web members. The floor joists are nailed to the studs. Collectively with other common rafters they support a pitched roof covering.

The butt of a shingle is the end that faces down roof. Stick framing combines roof rafters with ceiling joists. Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. Ridge the highest point of a pitched roof that receives the head of the spars co mmon rafters rafters.

If you re trying your hand at constructing an outbuilding like a garage shed or pole barn you ll need to understand the basic components of wall framing before you get started. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. Common types of roofs and basic framing terms.