How To Install Metal Roofing Over Shingles

Install your metal edging around the perimeter of your roof.

How to install metal roofing over shingles.

Install the metal edging. However you ll want to check with your local building department before you make any decisions. Install metal panels or shingles align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Installing a metal roof on top of shingles can be done in three basic steps only 2 are required. What s involved in how to install metal roofing. Use 1 1 4 inch. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Winter heating costs may be reduced thanks to a double layer of insulation. Yes you can install a metal roof over shingles. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. A steel roof is a lifetime investment lasting 50 years or more if it s a good one.

It s the simplest and fastest way to install a metal roof. 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. Make a slat board base on top of the shingles. A metal roof reduces cooling costs during the summer months because it can reflect the sun s rays.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. 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. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Install the roofing screws vertically along each rib in the panel.

Anatomy of a steel roof.