Gaps In Plywood Roof

Will the rubber sag over time in this gap.

Gaps in plywood roof.

While it s best to fill any voids prior to attaching pieces of plywood together you can fill voids between plywood sheets with wood filler. Rafters run from the peak of the roof. Unsealed seams diminish the effectiveness of the cooling and heating systems of a home which can adversely affect utility costs. In one area there is a 1 1 2 gap in the plywood where it attaches to the wood extending from my house.

Plywood manufacturers are aware of these problems. This was a room addition added years ago and is low pitched 12 2. This gap will minimize or totally eliminate any puckering caused by swelling. Gaps that were initially present may have closed due to normal moisture related expansion.

Voids in plywood are simply large holes that occur naturally in the surface of the wood. The minimum plywood for roofing. Virtually every one recommends that you your carpenter or builder create a 1 8 inch gap around all edges when installing plywood. Severe weather 1 2 in common douglas fir plywood sheathing application as 4 x 8.

Use a 16d sinker nail for this purpose. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Combining sheets of plywood makes the wood project more durable. If the flatness of sheathing or flooring panels is acceptable apa would generally recommend that any finish flooring siding or roofing be installed as planned regardless of whether gaps are present.

By sealing these seams moisture insects dust and air can t permeate into a home.