Can a Metal Roof Be Installed Over Shingles?
Is your current roof at the end of its life? Are you preparing yourself for a new roof to put on your home or business? One of the questions you may be asking yourself is: “Can a metal roof be installed over my existing shingles?” At Metal Roofing Solutions, we take great pride in our metal roofing material and installations. With that being said, we also like to share plenty of information about the metal roofing industry as a whole with the public and our clients. In this article, we share some information about whether or not you can install a metal roof over shingles.
You must ensure your shingle roof is in good enough shape
This isn’t just to make your life harder. A metal roof is installed with screws that need something to hold onto. Soft or unreliable plywood won’t be able to hold the screws and thus your roof could come off during one of Ontario’s unpredictable storms with high winds. You need to make sure that your existing roof is in good enough shape to be able to accommodate the new metal roofing system being laid overtop and securely fastened.
Installing the new metal roof over the existing shingles
There are two primary methods implemented when installing metal roofing over shingles. The first is running new underlayment over an existing shingle roof, thus covering the old roof. This allows the new underlayment to act as a line of defense in the event that water somehow gets under the metal roof. The second benefit is that it acts as a buffer between the metal roof and the shingle roof. Over time, a metal roof without a buffer can cause the shingle granules to wear away against the back of the metal roofing panels.
The second method includes building a flat surface to lay the new metal roofing on over the shingles. Fasteners are drilled to the existing roof so that the new metal roof has a flat surface to be installed on.
A new metal roof can be installed over your existing shingle roof if the shingle roof is still in good enough shape. For more information about our metal roofing material and installations at Metal Roofing Solutions, we encourage you to get in touch with our representatives.
Click here to find our contact information or to speak with a representative at Metal Roofing Solutions.