How to Install Metal Roofing Over Shingles

You might be wondering how to install metal roofing over shingles. This article will explain how to prepare your roof so it’s ready for the new roofing system. It also shows you how to address problems with your old shingle roof. First, determine which shingles are damaged or need to be replaced. If you have any, fix them as soon as possible. If you are replacing the entire roof, it’s important to do it right the first time.

how to install metal roofing over shingles

There are two ways to install metal roofing over shingles. You can either install an approved underlayment over the old shingles. This is an easy way to install the new material, but it won’t provide a flat surface for the metal roofing. You can also install 1×4 purlins over the shingles, which are more expensive but offer better quality. The best way to make sure you get the right shingle base is to have a good roof plan.

To install metal roofing over shingles, you should remove one layer of shingles first. Many cities limit the number of layers to two, so you’ll need to take off one of the layers of shingles before installing the new metal roof. Another factor that will limit your options is the condition of your shingle. If it’s missing, deformed, or curled, you might be unable to install the new metal roofing over the existing shingle roof.

After removing your shingles, you can install your new metal roof over top. You should use a slat board base. Then, attach the edging of the metal sheets with 1/4-inch roofing nails. Then, attach the metal sheets to the framing. You should install one sheet at a time, and overlap the previous sheet. After that, you can add more shingles.

After removing the old shingles, you can install the metal roofing over shingles. There are two ways to install it. You can use a plywood base instead of the slat board. You should also add an underlayment, such as wood, over the shingles. Then, use purlins to support the metal roof. After you have installed the underlayment, install the metal roofing over shingles.

The slat board base supports the metal roof over shingles. It is nailed with a 3-inch wood screw. Then, you should install the metal edging. Then, you can install the shingles. Afterward, you should install the metal roofing over the shingles. It is essential to adhere the metal edging. The edging is what will hold the whole roof together.

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