How To Install Metal Roofing Over Asphalt Shingles

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.

How to install metal roofing over asphalt shingles.

Metal roofing sheets have to be installed one at a time. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Install metal roofing sheets. Metal roofing is resistant to fire rot and termites.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Can i install a new metal roof over shingles.

Yes you can install a metal roof over shingles. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board. 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. Place a sheet from top to bottom on a section of the roof.

Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base. Manufacturers provide 30 year warranties on metal roofing products. 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. Installing steel roofing over existing roofing materials is fairly simple.

However you ll want to check with your local building department before you make any decisions. 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. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.