Roof To Wall Framing Detail

Use step flashing that has a 2 to 4 inch longer vertical leg than normal.

Roof to wall framing detail.

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. This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance. The focus of this project was on connections used with conventional light frame wood roof construction.

A literature review was conducted and supplemented with new research on the performance of conventional roof systems and components including ceiling joist to rafter connections and roof framing to wall connections. Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5. And the line length measurement from the roof peak to the building wall is the hypotenuse. Other conditions such as offset walls are not covered by this detail.

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. Needed to tie the roof together where the rafters are framed at an angle to each other. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.

The run or half the building span is the base of the triangle. The rafters carry the applied loads to the exterior walls. Addition to floor and roof framing details this guide includes recommendations for cantilevers and placement of web holes. At roof to wall intersections see figure 1.

The function of each component is. Most simply use a nominal 6 piece of lumber. Do not seal housewrap or building paper to step flashing. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Joist attachment per detail 1b load bearing wall above shall align vertically with the wall below. Framing must transfer all gravity uplift and lateral loads to the foundation. To wall sloped roof no overhang ledger support. Sills and plates normally provide adequate firestopping in walls and partitions.

In a rafter roof all of these components are required to provide a stable roof. Exterior wall parapet rafters prep. 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.

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.