Roof Framing Labeling

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Roof framing labeling.

Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Roof framing rafter layout. Roof framing can be simple or complex depending on the roof. 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.

Transfers the load of the roof through the raftersto walls below. The rise or height of the roof at its peak is the altitude of the triangle. The point at which all the rafters are attached to. Parts of a roof a ridge board is a horizontal member of the roof frame.

And the line length measurement from the roof peak to the building wall is the hypotenuse. Label and identify the parts of a roof framing plan. Nearly all roofs are framed using one of two methods. 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.

If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. The run or half the building span is the base of the triangle. This is known as prescriptive. Overhangs hips and dormers add greatly to the complexity of the framing.

Stick truss roof framing. 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. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Figure 2 2 roof framing terms.