Flat Roof Sheathing Installation

Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length.

Flat roof sheathing installation. Place the first piece of. Measure the dimensions of your roof then multiply that number together. Position the first piece of plywood. Zip system sheathing and tape provides a water resistant durable underlayment for many finished roof coverings including metal tile and asphalt shingles fiberglass shingles and cedar shingles.

Cover sheathing with. Calculate the amount of sheathing you need. Hammer shims under the rafters where. 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. Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each. Lay a long piece of lumber across your roof to make sure the rafters are level. Check the nailing surface is level step 2.

And scroll down to see more details on each with installation hints and tips below. Zip system panels install fast and stay flat for a roof that looks as good as it performs. Ventilate the roof according to current building codes step 3. How to correctly install plywood or osb roof sheathing.