Roof To Wall Framing Detail

Needed to tie the roof together where the rafters are framed at an angle to each other.

Roof to wall framing detail.

Rafters act more like the top chord of a roof truss than as a roof joist. 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. To provide a drip edge allow an overhang of 1 to 2 inches at the eave. Deck exterior and interior load bearing walls beams girders posts and floor framing.

In a rafter roof all of these components are required to provide a stable roof. The function of each component is. Cont 2x2 soffit framing jiit li wallsheathing fascia vented soffit system 1. 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 rise or height of the roof at its peak is the altitude of the triangle. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Framing a roof is the last step in framing new construction. Collar ties rafter ties tension beams structural ridge beams.

In buildings including residential structures framing systems typically consist of the roof structure that supports the roof. To wall sloped roof no overhang ledger support. Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5. Use step flashing that has a 2 to 4 inch longer vertical leg than normal.

Exterior wall parapet rafters prep. Framing must transfer all gravity uplift and lateral loads to the foundation. At roof to wall intersections see figure 1. At the gable edge use a gable or sidewall flashing.

Most simply use a nominal 6 piece of lumber. The rafters carry the applied loads to the exterior walls. And the line length measurement from the roof peak to the building wall is the hypotenuse. Do not seal housewrap or building paper to step flashing.

Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. The run or half the building span is the base of 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. This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance.

The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.