Roof To Wall Framing Detail

The rise or height of the roof at its peak is the altitude of the triangle.

Roof to wall framing detail.

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. Other conditions such as offset walls are not covered by this detail. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.

To provide a drip edge allow an overhang of 1 to 2 inches at the eave. 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. The function of each component is. To wall sloped roof no overhang ledger support.

The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. Needed to tie the roof together where the rafters are framed at an angle to each other. At roof to wall intersections see figure 1. Use step flashing that has a 2 to 4 inch longer vertical leg than normal.

The run or half the building span is the base of the triangle. Rafters act more like the top chord of a roof truss than as a roof joist. 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.

Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5. Framing must transfer all gravity uplift and lateral loads to the foundation. The focus of this project was on connections used with conventional light frame wood roof construction. Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.

Sills and plates normally provide adequate firestopping in walls and partitions. Do not seal housewrap or building paper to step flashing. Joist attachment per detail 1b load bearing wall above shall align vertically with the wall below. This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance.

In a rafter roof all of these components are required to provide a stable 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. Exterior wall parapet rafters prep. Addition to floor and roof framing details this guide includes recommendations for cantilevers and placement of web holes.

The rafters carry the applied loads to the exterior walls.