Roof To Wall Framing Detail

Rafters act more like the top chord of a roof truss than as a roof joist.

Roof to wall framing detail.

The rafters carry the applied loads to the exterior walls. 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. Collar ties rafter ties tension beams structural ridge beams. 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.

Use step flashing that has a 2 to 4 inch longer vertical leg than normal. And the line length measurement from the roof peak to the building wall is the hypotenuse. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge. Some of these can support the roof and prevent ridge sagging and wall spreading.

Framing must transfer all gravity uplift and lateral loads to the foundation. Most simply use a nominal 6 piece of lumber. The rise or height of the roof at its peak is the altitude of the triangle. To provide a drip edge allow an overhang of 1 to 2 inches at the eave.

The function of each component is. 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. To wall sloped roof no overhang ledger support. This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance.

The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. Exterior wall parapet rafters prep. In a rafter roof all of these components are required to provide a stable roof. Needed to tie the roof together where the rafters are framed at an angle to each other.

Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. Framing a roof is the last step in framing new construction. The run or half the building span is the base of the triangle. At the gable edge use a gable or sidewall flashing.

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. At roof to wall intersections see figure 1. Cont 2x2 soffit framing jiit li wallsheathing fascia vented soffit system 1.

Deck exterior and interior load bearing walls beams girders posts and floor framing.