How safe are roof mounted solar panels
Just wondering if anyone has ever had a solar panel fly off while driving in high winds? Doesn't look like the 2 screws for each of the 4 mounting brackets are secure enough to handle driving down th...
Forum Discussion
2oldman wrote:
As long as you have a 1/4" sheet of wood you'll be fine. This isn't wind tunnel testing.
Yes, but it could be 1/8" ply. In a 1/4" ply I would use 2 or 3 screws per bracket, with at least 3" spacing between screws. Ex., a 6" long piece of 3x3" aluminum angle with 2 or 3 screws, per corner.
DAS26miles - yes, a long bracket that spans the whole length of panel like on the Dusty's photo, would work. In 1/8 ply and with a long bracket like this, I wouldn't drive too many screws . Not "every few inches" for sure. Epoxy and 4 or 8 screws total should be enough. If you can locate rafters, it's always a good idea to drive screws in there.
