Metal Roof On Plywood

Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.

Metal roof on plywood.

For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. What plywood should you use for a roof. So what size plywood should you use for your roof. On top of this underlayment goes a slip which protects the material from tearing as the metal roof expands and contracts with changing weather.

Let s take a look at the most common types of metal roofs for houses. The industry offers a thickness of anywhere from 5 16 inch to inch. Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof design. Overall plywood is a little bit better for roofing.

Rafters run from the peak of the roof. There are several factors to consider. Rotted sagging areas in your roof s plywood decking should be replaced prior to installing metal panels in order to prevent costly repairs in the future. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

Look for something that s graded as exposure 1 or exterior. This is why plywood is considered as the better option for roofing. The minimum plywood for roofing. What size plywood should you use for your roof.

You will most likely have to order the roofing metal in the amount and color specific to your house. You will also need a large garbage can a jigsaw or power metal shear a staple gun a drill and assorted drill bits 1 inch roofing nails metal roofing screws and self drilling self sealing wood screws. To secure it measure it roll it out over the plywood cut it to the dimensions of the roof with a roofing or utility knife and finally hammer it securely to the plywood with 1 2 inch roofing nails. Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes.

Even though the wood is porous it is more natural and it can dry quickly.