Installing Metal Roof On Top Of Shingles

Can you put metal roof over shingles.

Installing metal roof on top of shingles.

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. Yes you can install a metal roof over shingles. However you ll want to check with your local building department before you make any decisions. 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.

Install metal roofing sheets. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. 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. This is by far the most common way to install a metal roof.

Place a sheet from top to bottom on a section of the roof. Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base. Then cover the entire roof with a layer of insulation and secure it with a staple gun. Can you put metal roof over shingles.

But some steel shingle manufacturers offer do it yourself systems that cost about the same as an installed asphalt roof. 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. Consequently they don t have the same ventilation advantages. Metal roofing sheets have to be installed one at a time.

These systems aren t attached to a frame but instead install directly on the old roof. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.

Next use 1 inch nails to secure some metal edging to the perimeter of the roof. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.