How to Install Metal Roofing Over Plywood

how to install metal roofing over plywood

How to Install Metal Roofing Over Plywood

Before you install metal roofing over plywood, make sure you have a complete understanding of the material’s properties. For example, the temperature on a metal roof will be below the dew point of the air at night, which is 40 degrees Fahrenheit. This will cause the water in the air to turn to liquid. You can see this on a warm day, or inside your home on a cold day, because it forms beads on cold vessels, such as a countertop or table.

Before you begin installing metal roofing over plywood, be sure to clean the work area thoroughly. Once you have cleared the work area, you can start the actual installation. This will involve setting up the roof and placing the first layer of plywood on top. When you install metal roofing over plywood, make sure that you measure the length of the metal sheet and the overlap to ensure it is level. Then, use a galvanized metal screw to fasten the metal panels to the board.

The proper plywood thickness will depend on the amount of metal roofing you plan to install. 7/16 inches is sufficient to support the weight of the metal roofing. You should also apply a layer of felt moisture barrier (not the craft store felt). This layer is made of thick rubber or tar that prevents moisture from damaging the plywood. It will keep the wood dry and maintain the seal of screws and nails. Lastly, you should cover the entire plywood surface with a second layer of plywood.

Once the plywood sheeting is dry, you can move to the next step. For a metal roof over plywood, you must make sure that the top layer of the sheet is waterproof and the edges are straight. Then, you must cut the metal flashing to the right length and install it with nails. After that, you can install the gutters according to the fit and size of the metal sheeting. Finally, make sure that the seams are not cracked or tearing.

Before you begin installing metal roofing over plywood, you must prepare the plywood. Ensure that it is 7/16 inches thick or more to avoid any issues. It should also be protected with felt moisture barrier, which is not the craft store type of felt. This type of felt is thick and made from tar or asphalt. This will keep moisture out and help to seal the screws. Once you’ve prepared the plywood, it’s time to install the metal roofing.

Before installing metal roofing over plywood, make sure the plywood is at least 7/16 inches thick. Then, you need to add a layer of felt moisture barrier. Don’t get craft store felt. You need to buy a thick roll of felt that is infused with asphalt and tar. It will protect the plywood from moisture and will keep the screws in place. Besides protecting the plywood, it will also help you create an accurate measure.

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