How To Install Metal Roofing Over Shingle Roof

How to install a metal roof over shingles.

How to install metal roofing over shingle roof. The metal used for the roof can be tin copper aluminum or steel. The low weight of metal roofing is one thing that encourages this. Install your metal edging around the perimeter of your roof. Use 1 1 4 inch.

The vast majority of installations of the metal roofing systems produced by my company are over existing 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. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.

Make a slat board base on top of the shingles. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.

Installing metal roofing over shingles is the best solution. 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.