How To Extend Roof Sheathing

This indicates the truss tails.

How to extend roof sheathing.

However for larger extensions you ll need to hire a professional to get up there and remove large portions of the roof before extending the overhang. The next piece above it should be allowed a 1 8 expansion joint ending at the top plate or at the midway point of the next rim joist. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg. This can be done efficiently by cutting a panel in half and using these half sheets to start every other course.

Then we re going to use a scrap of 2x4 to space off the square and strike a line there. It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads. Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length. Also use more nails and place them closer together to build a stronger roof.

When installing roof sheathing use nails with longer nail shank larger diameter and a larger head than may be required. Most complicated is to extend an eave at the same pitch as the. A bird s mouth cut is a notch in the underside of the rafter which reduces the space between the top wall plate and the underside of the roof sheathing. For instance if the existing roof has.

We go in depth on how to install roof sheathing. Carefully work your way up to the peak of the roof. Draw a full scale mockup and snap a line with fascia in kind to figure out for the sheathing snap line swing the square over to the pitch of the roof in this case it is a. Stagger the joints of each course of sheathing.

For multi story buildings the sheathing on the bottom should extend down to the bottom of the lowest framing member extend to the halfway point on rim joist as shown in red. Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each rafter to find the length of. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof.