How to Install Metal Roofing Over Plywood

There are some benefits of metal roofing over plywood, which will help you save thousands of dollars in the long run. By following a few simple steps, you can install your new roof on a home without putting up any barriers. In this article, we’ll take a look at the pros and cons of metal and plywood, and provide tips on how to install metal roofing over them. If you’re planning on installing metal roofing on your home, you should read on to learn more about how to install metal roofing over a plywood roof.

how to install metal roofing over plywood

First, you’ll need to remove the plywood, which should be seven-16 inches thick. You’ll need to install felt moisture barrier over the plywood. Unlike the craft store felt, this piece of material is thick and made of tar or asphalt. This will protect the plywood and help you ensure that the screws stay in place. You’ll also need a slip sheet to protect your felt sheet from metal. Regardless of which type of roofing you choose, you’ll want to follow local building codes for a secure roof.

If you’re using your own plywood, make sure it’s at least seven/16 inches thick, as this will support the metal roofing without cracking. Next, apply a felt moisture barrier, which is not craft store felt, but a thick piece of asphalt or tar that’s infused into the material. This will prevent moisture from damaging the plywood and will help keep the screws in place. While you might be tempted to skip this step, it’s worth the extra effort and money.

Once you’ve installed the plywood, you can start installing the metal roofing. Remember to make a line on your roof and overlap the edges. Lastly, you should make sure you have a 12-inch overlap in the plywood. When installing metal roofing over plywood, you should carefully measure the length and width of the metal panel before beginning work. To do this, mark the edges of the wood with a pencil and cut the metal panel accordingly.

You’ll need to make sure the plywood is clean and dry. If it’s warped, then it’s likely that the plywood is rot-prone. This will prevent the metal roofing from lying flat, and the wind may damage the wood underneath it. This can lead to a dangerous situation. While you can install metal roofing over plywood without gaps, it is best to use a slip sheet. This will protect the plywood from the metal.

When installing metal roofing over plywood, you’ll need to prepare the plywood. It should be 7/16-inch thick. This will give you a solid base for the metal. You’ll also need to lay a felt moisture barrier over the plywood. This is not the craft store kind of felt. It’s thick, and it contains asphalt or tar that prevents moisture from damaging the plywood. It will also help keep the screws in place.