Plywood Roof Sheathing Gap

Cover sheathing with.

Plywood roof sheathing gap.

Virtually every one recommends that you your carpenter or builder create a 1 8 inch gap around all edges when installing plywood. Some older h clips do not provide a built in gap. This gap will minimize or totally eliminate any puckering caused by swelling. Align the long edge of the sheathing with the ends of the.

And scroll down to see more details on each with installation hints and tips below. Use a 16d sinker nail for this purpose. Not always required but a good idea. That can mean costly time consuming callbacks.

The shaft of the nail is slightly larger than 1 8 inch. If the wood structural panels are tightly butted there is no room for expansion and buckling can occur. H clips provide additional stiffness between bearing points for the unsupported edges of wood panel plywood or osb roof sheathing along with the necessary 1 8 gap for expansion as shown below illustrated on a bag of simpson h clips. Position the first piece of plywood or oriented strand board sheathing on the bottom edge of the rafter tails at one end of the roof.

Plywood and oriented strand board osb like all wood products will expand or shrink slightly with changes in moisture content. Check the nailing surface is level step 2.