How To Install A Metal Roof Over Existing Shingles

Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base.

How to install a metal roof over existing shingles.

Metal roofing sheets have to be installed one at a time. How to install a metal roof over existing shingles. You must put in a completely new underlayment over the existing shingles before you carry out any installation. To install it slide the flat wide flange underneath.

Yes you can install a metal roof over 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. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. However you ll want to check with your local building department before you make any decisions.

Install metal roofing sheets. This will help prevent water leakage and provide a buffer between the metal roof and the existing shingles. 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. 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.

Start with an underlayment over the existing shingles. This is by far the most common way to install a metal roof.