Roof Framing Labeling

Roof framing rafter layout.

Roof framing labeling.

Stick truss roof framing. Transfers the load of the roof through the raftersto walls below. 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. Introduction to prescriptive roof framing 3 prescriptive roof construction the international residential code irc and the international building code ibc set out specific guidelines within which conventional light frame wood structures may be built without the need for engineering analysis of each component.

The rise or height of the roof at its peak is the altitude of the triangle. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Figure 2 2 roof framing terms. Line length is the hyptenuse of the triangle whose.

Label and identify the parts of a roof framing plan. This is known as prescriptive. Roof framing can be simple or complex depending on the roof. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

This will the first point of the rafter measurement line using the results of your rafter length calculation measure from this point along the rafter measurement. Standard stick framing or the newer truss framing. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

And the line length measurement from the roof peak to the building wall is the hypotenuse. The point at which all the rafters are attached to. Overhangs hips and dormers add greatly to the complexity of the framing. Parts of a roof a ridge board is a horizontal member of the roof frame.