Installing Metal Roofing Over Shingles

Install the metal edging.

Installing metal roofing over shingles.

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. However you ll want to check with your local building department before you make any decisions. 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. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

Make a slat board base on top of the shingles. Yes you can install a metal roof over shingles. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Some consideration for vent stacks and chimneys is required during the design process.

How to install a metal roof over shingles. Can i install a new metal roof over shingles. Use 1 1 4 inch. Install your metal edging around the perimeter of your roof.

Installing steel roofing over existing roofing materials is fairly simple. Make sure roof is square. 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. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.

Metal roofing is also available in the form of shingles. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board. Installing a steel roof will cost approximately 60 per square foot. 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.