Can Metal Roofing Be Installed Over Shingles

By Author: BRS Roofing Supply
Total Articles: 11
Comment this article

Is it possible to instal a metal roof over shingles already in place? As a leading metal roofing supply company in Atlanta, we frequently get this inquiry from homeowners. And our answer is yes you can install a metal roof over shingles.

Now that the crucial question has been addressed, it is time to consider how this can be accomplished as well as what might have an impact on installation and how to prevent any errors.

Checklist for Installing a Metal Roof Over Shingles:
It is typically necessary to conduct an inspection to confirm that the plywood to which your shingles are fastened is strong enough to support the additional layer of a metal roof. An expert roofing firm should conduct this examination to evaluate things like:

• If screws can be used in the metal roof installation. This would be devastating if the wood is rotten since they wouldn't stay in place.

• Additionally, many regions forbid the use of two roofing materials in residential buildings. Therefore, it is crucial to confirm that this is legal in your community.

• How do the existing shingles look right now? What ...
... is their condition?

• Are there any leaks or other problems that need to be fixed? Before any installation takes place, a professional roofing firm can assist in evaluating the situation and resolving any problems.

How to Install a Metal Roof Over Existing Shingles?
To begin, place an underlayment over the current shingles: Before beginning any work, the old shingles must be covered with a brand-new underlayment. This will act as a barrier between the metal roof and the pre-existing shingles, assisting in stopping water leakage. Shingle roofs are granulated, whereas metals compress and expand over time. Without an underlayment, the granules on a shingle roof would eventually wear away.

Using purlins or battens: Prior to installing the metal on the purlins, the purlins must be screwed to the roof deck. Purlins have the benefit of giving the installer a flat surface on which to instal the metal roof panels without the problems associated with shingles. In order to strengthen the roof, the metal must be fastened to at least half of the plywood and three-quarters of the purlins. The air space between the metal roof and the shingles is also produced by the purlins. When the metal roof gets hot in the summer, the space below serves as a buffer for the shingles below.

Get in touch with BRS Roofing Supply now if you are looking for one of the most reliable metal roofing suppliers near me in Atlanta GA.