Can I mount plug-in solar panels on a roof?

You can, and some members do, but the panels are not specifically designed for it. Plug-in solar panels have a light aluminum frame intended for railings, walls and ground mounts, not the heavier frame that roof-rated panels carry to handle wind and snow loading. That makes a shed, garage or other low outbuilding a reasonable place to try it and a house roof a poor one. Height changes both the wind load and the consequences of getting it wrong, and anything on a dwelling roof brings in structural and electrical questions that plug-in solar is specifically designed to avoid.

If you are looking at a roof because you have nowhere else, our guide DIY Solar Without a Roof covers the ground and wall options first.

What do people use on a standing seam metal roof?

Seam clamps that grip the raised seam without penetrating it, which is the cleanest option available. They cost a few dollars each and do not need rails between the clamp and the panel.

What about a shingle roof?

Any penetration through shingles has to be sealed properly, and that is roofing work rather than DIY work. Members who have done it used low brackets through the panel's existing mounting holes and sealed every hole. If you are not confident sealing a roof penetration, do not start there.

Do I need rails?

Often not at this size. Two panels attached directly to appropriate brackets is a much simpler assembly than a rooftop array, which is part of why the small format works.

What is the biggest risk?

Wind. A panel is like a sail, and a mounting that seems solid on a calm day can be the one that fails in a storm.

Drawn from an ongoing conversation in the Bright Saver Community, where members compare mounting setups and hardware they have actually used.