Quote:
Originally Posted by Shawn
Hello everyone,
Any one know the size of the screws that I can use for the Thor Motorhome roof to mount the solar panel brackets? I don't know how thick the roof of the motorhome, and don't want use the screw too long to drive through the roof, also don't want use screws too short and can't holding down the panel well.
Thanks.
|
On mine I used one inch stainless steel sheet metal screws. Probably #8 but I don’t actually remember. I expect 3/4 inch would be fine. My roof (SOB) is only about 1/4 - 3/8 inch thick and the rafters I fastened into are stamped aluminum so added almost no thickness. But the ceiling has a good two inches of insulation so there was no particular risk associated with using longer .