A third gable roof is joined to a main roof in an overbuild remodeling situation.
Roof overbuild framing.
1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.
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.
Use of rafters trusses and a truss base polyline are demonstrated.
Also a link to elevations of house.
Figure 2 2 roof framing terms.
Needed to tie the roof together where the rafters are framed at an angle to each other.
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 rafters carry the applied loads to the exterior walls.
Rafters act more like the top chord of a roof truss than as a roof joist.
The function of each component is.
Below is a link to a roof plan with a section that is over framed see note 3.
In a rafter roof all of these components are required to provide a stable roof.