I'm planning on installing a solar panel on my Tracer Ultra lite. My question is what is the best way to mount the panel to the roof, screws or expansion nuts?
Quick update: I had a look at the roof and it is 1.5 in foam sandwiched by 1/8 ply top and bottom. I'm planning on using well nuts to attach the panel flat on the roof and then use sealer around them to provide a water tight seal.. My question is how well do the well nuts hold?