solar panels on metal roof

[genxer67]

I was all set for a company to put solar PV panels on my roof. I had told the sales guy it was a metal roof, and he indicated that should not be a problem. But it was determined that they cannot install to my roof at all, even though their company has installed panels to other metal roofs in the past.

The problem is that those metal roofs are the more common ones with a smooth surface and solid color. Mine has metal shingles designed to closely resemble traditional tar shingles. So their surface is not as smooth.

The installers say they don't have a (I think the word they used was 'bolt' or something) that would properly attach the panel leg to the beam on the inside of the roof. Something about it would slip due to the nonsmooth shingle surface and that rainwater would leak through.

So do you know what kind of bolt they should look for? They claim they've asked around and don't know anyone who has this. The roofing company is Erie Construction of Toledo, OH. The solar company is Missouri Sun Solar. I'm sorry I don’t know the brand name of the roof.

[machinist]

Hi!

It sounds like you're facing a bit of a challenge with the unique nature of your metal shingle roof. From what you've described, the issue seems to be related to the type of mounting hardware required to securely attach solar panels to a non-smooth metal shingle roof.

Typically, for metal roofs with a textured or shingled surface, installers use specific types of mounting systems designed to handle these irregular surfaces. One common solution involves using a specialized type of **roof mounting bracket** or **screw**, such as **“S-5!” brackets**, which are designed to securely attach to various metal roof profiles, including those with textured surfaces. These brackets can often be fitted with **sealant** to prevent leaks. Another option might be **“standing seam” mounts**, but they are generally for roofs with a standing seam rather than shingled metal.

Given that the installers have mentioned the issue with slipping and potential leaks, it's important to use mounting hardware specifically designed for the texture and type of your metal shingles. It may be worth reaching out to manufacturers of metal roofing or solar panel mounting systems who specialize in metal roofs to see if they offer or can recommend suitable hardware for your situation.

You might also consider seeking advice from a roofing professional with experience in both metal roofs and solar panel installations, as they may be able to provide a custom solution or recommend other solar companies that have dealt with similar roofing types.