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.

Cont 2x2 soffit framing jiit li wallsheathing fascia vented soffit system 1. Some of these can support the roof and prevent ridge sagging and wall spreading. Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5. In buildings including residential structures framing systems typically consist of the roof structure that supports the roof.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. 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. Rafters act more like the top chord of a roof truss than as a roof joist. The rise or height of the roof at its peak is the altitude of the triangle.

The rafters carry the applied loads to the exterior walls. The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge. Do not seal housewrap or building paper to step flashing.

The run or half the building span is the base of the triangle. In a rafter roof all of these components are required to provide a stable roof. Framing a roof is the last step in framing new construction. The function of each component is.

Most simply use a nominal 6 piece of lumber. And the line length measurement from the roof peak to the building wall is the hypotenuse. Needed to tie the roof together where the rafters are framed at an angle to each other. Exterior wall parapet rafters prep.

At roof to wall intersections see figure 1. At the gable edge use a gable or sidewall flashing. To provide a drip edge allow an overhang of 1 to 2 inches at the eave. Collar ties rafter ties tension beams structural ridge beams.

Sills and plates normally provide adequate firestopping in walls and partitions. Deck exterior and interior load bearing walls beams girders posts and floor framing. To wall sloped roof no overhang ledger support. Use step flashing that has a 2 to 4 inch longer vertical leg than normal.

Framing must transfer all gravity uplift and lateral loads to the foundation.