Plywood Over Tongue And Groove Roof

One was for a fortune to put new plywood over my existing t and g.

Plywood over tongue and groove roof.

At one point in time it was standard to use shiplap tongue and groove one inch boards or other boards for your roofing deck. Tongue and groove roof decking especially the one from solid wood boards is one of the two most common choices for residential use right now. Do you really need new plywood over tongue and groove. Tongue and groove boards were used for decades prior to the widespread adoption of plywood as a sheathing material in the 1950s and 1960s.

The keyword here is solid it used to be standard to use shiplap 1 boards tongue groove or other boards for the roof deck. Lastly it would be best if the new sheets of plywood were offset from the seams of the existing plywood but at the same time placed so that the new seams can be. It doesnt look wavy and 2 other guys said they just would put over t and g. If right now you are thinking about which deck choice to add to your new roof design or to replace the old or damaged one you are in the right place.

Remember the keyword is solid. These wider boards were all nailed tightly together. Building a structural tongue and groove roof deck. In my experience the need for tongue and groove or edge clips is determined by the thickness of the roof sheathing and the spacing of the rafters.

The other one is plywood. Rafters it shouldn t be an issue. Old houses with asphalt shingles usually had either tongue and groove boards or straight sided boards abutting. The main reason to use tongue and groove boards these days is appearance from beneath the roof.

However that isn t the case. The new plywood thickness should be. You also should consider the design parameters of the roof to ensure that the extra weight of the added plywood is well within the static load capability of the roof support structure. Some use clips as convenient spacers.

Whenever your roof was first installed the nails were put into the solid wood. Among other things this video covers how we re doing the insulation in a way that leaves the framing and. In the 1950s plywood sheathing and particleboard became common and today most standard construction roofs use either half inch plywood or particleboard s big brother oriented strand board osb. As roofing contractors in seattle we are often asked why do we need plywood over our old solid sheathing.

Say what you want about them but osb and plywood do not offer a very attractive finished look. As long as the new plywood itself can span the distance and carry the roof wind seismic and snow loads for your region adding new ply over old is just fine.