Roof Framing Nomenclature

It is simple in design economical to construct.

Roof framing nomenclature.

Framing consists of a doubled valley rafter in the middle that extends from a top plate corner to a second ridge board with angled jack rafters for support. Roof framing can be simple or complex depending on the roof. Valley the inward angle of two sloping roof sections. Overhangs hips and dormers add greatly to the complexity of the framing.

Common types of roofs and basic framing terms. The top horizontal framing members of a framed wall. However green building uses a single top plate and ensures that rafters and ceiling joists sit on the plate directly over the studs. An example of each is shown in figure 2 1.

Stick truss roof framing. This is to help prevent deflection and sag in the roof. Collar tie also collar beam in profile the framing of a conventional pitched roof forms a triangle. Standard stick framing or the newer truss framing.

At the top of a wall panel you have a top plate and at the bottom you ll have a bottom plate. The butt of a shingle is the end that faces down roof. Top plate or plates in conventional western platform framing there are two top plates. Sway bracing there are a few ways to sway brace the wall.

The inherent strength and integrity of the triangular form makes the roof a sound structure. 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. It is the form most commonly used by the navy. Gable a gable roof has a ridge at the center and slopes in two directions.

Definition of structural ridge or ridge beam used in roof framing a structural ridge beam is a horizontal beam placed at the peak or ridge of a roof and is designed to carry much of the live and dead loads or weight of the roof structure by itself.