How To Install Metal Roofing Over Shingles

A metal roof reduces cooling costs during the summer months because it can reflect the sun s rays.

How to install metal roofing over shingles. Install the metal edging. Winter heating costs may be reduced thanks to a double layer of insulation. How to install a metal roof over 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.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. However you ll want to check with your local building department before you make any decisions. Anatomy of a steel roof.

Install the roofing screws vertically along each rib in the panel. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Install your metal edging around the perimeter of your roof. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

It s the simplest and fastest way to install a metal roof. Yes you can install a metal roof over shingles. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. What s involved in how to install metal roofing.

Installing a metal roof on top of shingles can be done in three basic steps only 2 are required. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. 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.

Use 1 1 4 inch.