Can You Put Metal Roofing Over Shingles

By removing the old roof before the new roof s installation you are able to give the underlayment a thorough inspection to ensure there are no damages that could.

Can you put metal roofing over shingles. If you don t want to take our word for it check with your local building department. Can you install metal roofing over shingles the answer is yes. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. In some areas building officials only allow a re roof over one layer of shingles.

Yes you can install a metal roof over shingles. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Metal roofing weighs less than one pound per square foot. As you can imagine there are a lot of differing opinions on whether it is permissible to put metal over the top of other roofing materials.

Otherwise you will need to remove the shingles. One big advantage to metal roofing is that it is light weight which makes it the perfect material to be installed over an existing shingle roof. Some contractors feel that there is a problem with too much weight causing stress on the roof trusses and that condensation could be an issue. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

However there are some things that you will want to check out before doing it this way. This is by far the most common way to install a metal roof. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. After all you ll be making a significant and long term investment.

Can you put metal roof over shingles the reason why this is important is because a shingle roof is granulated very similar to sandpaper. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Asphalt shingles can weigh up to four pounds per square foot depending on the brand. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.

Before you reshingle a roof read our step by step guide for adding new shingles over old ones. On has the metal expands and contracts due to weather changes the metal will actually move. Installing a metal roof over shingles can also result in an increased chance of trapped water vapor and moisture between the new roof and old roof resulting in new mold and rot. However you ll want to check with your local building department before you make any decisions.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. 3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.