Installing Metal Roof Over Shingles

How to install a metal roof over shingles hunker.

Installing metal roof over shingles.

Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. Make a slat board base on top of the 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. They have always been popular on barns commercial buildings and.

How to install metal roofing over shingles issues you might encounter. Install the metal edging. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. Another added benefit is that the layers of your old roof will further insulate your home.

You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Install your metal edging around the perimeter of your roof. Yes you can install a metal roof over shingles. It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow.

In terms of building codes many municipalities now have placed limits. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Metal roofs have a long history of use.