Roof To Wall Framing Detail

While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below.

Roof to wall framing detail. To provide a drip edge allow an overhang of 1 to 2 inches at the eave. Exterior wall parapet rafters prep. Rafters act more like the top chord of a roof truss than as a roof joist. Needed to tie the roof together where the rafters are framed at an angle to each other.

Use step flashing that has a 2 to 4 inch longer vertical leg than normal. The rise or height of the roof at its peak is the altitude of the triangle. At roof to wall intersections see figure 1. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.

In buildings including residential structures framing systems typically consist of the roof structure that supports the roof. Framing must transfer all gravity uplift and lateral loads to the foundation. And the line length measurement from the roof peak to the building wall is the hypotenuse. Deck exterior and interior load bearing walls beams girders posts and floor framing.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. In a rafter roof all of these components are required to provide a stable roof. Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. Most simply use a nominal 6 piece of lumber.

This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. The rafters carry the applied loads to the exterior walls. Sills and plates normally provide adequate firestopping in walls and partitions. To wall sloped roof no overhang ledger support.

The run or half the building span is the base of the triangle. Collar ties rafter ties tension beams structural ridge beams. At the gable edge use a gable or sidewall flashing. Some of these can support the roof and prevent ridge sagging and wall spreading.

This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance. Cont 2x2 soffit framing jiit li wallsheathing fascia vented soffit system 1. Framing a roof is the last step in framing new construction. Do not seal housewrap or building paper to step flashing.

Other firestopping requires 2 inch lumber or two thicknesses of 1 inch lumber with staggered joints or one thickness of inch plywood with joints backed by 1 inch lumber or inch plywood.