Roof Framing Nomenclature

Nearly all roofs are framed using one of two methods.

Roof framing nomenclature.

Collar tie also collar beam in profile the framing of a conventional pitched roof forms a triangle. 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. Sway bracing there are a few ways to sway brace the wall. 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.

Valley the inward angle of two sloping roof sections. However green building uses a single top plate and ensures that rafters and ceiling joists sit on the plate directly over the studs. The top horizontal framing members of a framed wall. The butt of a shingle is the end that faces down roof.

This is to help prevent deflection and sag in the roof. Stick truss roof framing. An example of each is shown in figure 2 1. Gable a gable roof has a ridge at the center and slopes in two directions.

It is simple in design economical to construct. 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. The inherent strength and integrity of the triangular form makes the roof a sound structure. Roof framing can be simple or complex depending on the roof.

Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist. On any wall panel or framing piece the beams that run horizontal at the very top and bottom of the frame are called plates. Common types of roofs and basic framing terms. It is the form most commonly used by the navy.

Top plate or plates in conventional western platform framing there are two top plates.