How To Install Metal Roofing Over Shingles

Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

How to install metal roofing over shingles.

Install your metal edging around the perimeter of your roof. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Install the metal edging. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. 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. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Anatomy of a steel roof.

Winter heating costs may be reduced thanks to a double layer of insulation. 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. 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.

A metal roof reduces cooling costs during the summer months because it can reflect the sun s rays. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. 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. Install the roofing screws vertically along each rib in the panel.

What s involved in how to install metal roofing. Make a slat board base on top of the shingles. Installing a metal roof on top of shingles can be done in three basic steps only 2 are required. Yes you can install a metal roof over shingles.

How to install a metal roof over shingles.