How Should Roof Sheathing Be Installed At Peak

Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof.

How should roof sheathing be installed at peak.

The edge of the shingles should hang over a roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed. In areas where the wind speed is greater than 130 mph nails for attaching the roof sheathing to intermediate supports should be spaced 6 inches on center for at least the first 48 inches from the ridges eaves and gable end walls. How to correctly install plywood or osb roof sheathing. I have seen two thoughts.

When installing roof sheathing use nails with longer nail shank larger diameter and a larger head than may be required. How to install roof sheathing 1. Check the nailing surface is level step 2. Also use more nails and place them closer together to build a stronger roof.

Position the first piece of plywood. Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length. How should the sheathing meet at the roof peak when there will be no ridge vent. Properly fasten panels including fastening and spacing hints step 4.

Ventilate the roof according to current building codes step 3. 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. Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each. This is a simple pitched roof line with ridge beam and rafters attached with slope hangers.

Begin applying the sheets from the bottom of the roof the eaves and work your way up to the ridge. Start the sheathing at the eaves and work your way up to 1 inch from the peak. Cover sheathing with. The fasteners should be spaced only 4 inches apart on the panel edge at the gable end wall framing.

It is important here that the sheathing at the eave line be exactly perpendicular to the rafters so that the sheets will meet at the centers of the rafters. The last course at the top may need to be rip cut if the roof is not in 4 foot increments. Leave a slight gap as if the sheathing was cut a little short and install the sheathing to a matching edge no gap. Too much overhang and the shingles could blow off in high winds.

Nails size 8b should be installed every 6 inches on edges and every 12 inches in the center area.