How To Install A Metal Roof Over Existing Shingles

How to install a metal roof over existing shingles.

How to install a metal roof over existing shingles.

Start with an underlayment over the existing shingles. In terms of aesthetics you need to be careful in terms of choosing your metal roof solution so that it will blend into your surrounding neighborhood. To install it slide the flat wide flange underneath. Drip edge or edge metal is a piece of metal that extends approximately 0 75 inch beyond the roof s edge to channel runoff into your gutters.

Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base. 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. Metal roofing sheets have to be installed one at a time. Place a sheet from top to bottom on a section of the roof.

Yes you can install a metal roof over shingles. This will help prevent water leakage and provide a buffer between the metal roof and the existing shingles. Also if the existing shingles on top are not level or in very poor condition you may need to put a layer of roofing felt down or wooden frame over the shingles before installing the new metal roof. Install metal roofing sheets.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. However you ll want to check with your local building department before you make any decisions.