How To Install Metal Roofing Over Asphalt Shingles

Use notching scissors to notch the metal in the middle so that it will bend over the ridge.

How to install metal roofing over asphalt shingles.

Steel roofing offers many benefits over slate tiles or asphalt shingles. Install with 1 4 inch metal wood screws at a distance of every two feet. 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. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board.

Installing steel roofing over existing roofing materials is fairly simple. You shouldn t attach the metal directly to the osb roofing deck. We get asked this question all the time. After all you ll be making a significant and long term investment.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Yes you can install a metal roof over shingles. Install the metal trim. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Can i install a new metal roof over shingles. Most codes allow only two layers of roofing before requiring a complete tear off. However you ll want to check with your local building department before you make any decisions. You need to add furring strips over the top of the shingles so you have something to attach the metal panels to.

Both metal and shingle roofs are great options for your next roofing project. 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. 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. 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.

Does it work to leave asphalt shingles under long metal panels. 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. Other issues include venting the eaves and the ridge. Manufacturers provide 30 year warranties on metal roofing products.

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. Metal roofing is resistant to fire rot and termites. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Things to know about metal over shingle roof problems.

Your metal trim will go along the roof s edges as well as the top ridge.