Roof Overbuild Framing

The function of each component is.

Roof overbuild framing.

Line length is the hyptenuse of the triangle whose. Use of rafters trusses and a truss base polyline are demonstrated. Rafters act more like the top chord of a roof truss than as a roof joist. Figure 2 2 roof framing terms.

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. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. A third gable roof is joined to a main roof in an overbuild remodeling situation. The exposed edges of the 3 layers of rigid insulation are no longer exposed.

Below is a link to a roof plan with a section that is over framed see note 3. Box beam gable framing new gable overhang is framed in the form of a box beam hanging off of a new layer of roof plywood roof sheathing cantilevered over the top of the 3 layers of rigid insulation. The rafters carry the applied loads to the exterior walls. In a rafter roof all of these components are required to provide a stable roof.