How To Install A Metal Roof Over Existing Shingles

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.

How to install a metal roof over 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. You must put in a completely new underlayment over the existing shingles before you carry out any installation. Yes you can install a metal roof over shingles. This is by far the most common way to install a metal roof.

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. Place a sheet from top to bottom on a section of the roof. However you ll want to check with your local building department before you make any decisions. Install metal roofing sheets.

Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Start with an underlayment over the existing shingles. 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.

How to install a metal roof over existing shingles. To install it slide the flat wide flange underneath.