Can you install solar panels on a metal roof? Yes. In fact, a metal roof is one of the best roofs to put solar panels on, mainly because it should outlast the panels. Here’s how it works with each type of metal roof, and what to plan for.
Why metal and solar go well together
Solar panels usually stay on a roof for 25 years or more. An asphalt roof that lasts 9 to 13 years will likely need replacing while the panels are still working, which means paying to take the panels off and put them back on. A metal roof, on the other hand, is backed by a 40-year, 50-year or lifetime warranty. Here’s how long a metal roof lasts.
Standing seam: clamps, not holes
On a standing seam roof, the solar mounts clamp onto the raised seams. As a result, there’s no need to drill through the roof panels to hold the racking.
Interlocking metal shingles: flashed mounts
On interlocking shingles, like Armadura and Classic Aluminum, the mounts go through the roof into the deck. Each one needs proper flashing and sealing, so the solar installer’s experience matters. A badly installed mount can leak, and work by another company can affect your roof warranty. Here’s how metal roof warranties work.
Why direct-to-deck helps
Our roofs sit directly on the deck, so mounts fasten into solid wood, and the roof stays firm when the solar crew walks on it. In contrast, roofs on battens (strapping) have gaps under the metal that can dent underfoot and make mounting harder. Here’s more on direct-to-deck vs batten (strapping) roofs.
How we work with solar companies
If you’re planning both, put the new roof on first. That way, the solar company installs the panels on a roof that won’t need replacing under them.
Already have solar panels on an asphalt roof? We contact your solar company to remove the panels, install your new metal roof, and then work with them on the right mounting brackets before the panels go back on.
Adding solar to a roof we installed? Connect us with your solar company first, and we’ll agree together on the best mounting for your roof. Some homeowners also book us to come back afterward and look over the mounting brackets.
Planning solar? Start with the roof.
Call 866-969-7663, or request a free quote.