Install Solar Panel On Roof Rack
Drill a slightly larger 1 32 hole than your bolt or screw size.
Install solar panel on roof rack. Also be sure the stanchion flashing fits beneath the roof shingles to prevent leaks. Screw each stanchion through the roof and into a roof rafter. Mark the position of these holes on the solar array and then drill a hole through the board not the solar panels that is going to be big enough to run a bolt down through. Learn about diy solar.
200w of solar panels on the roof rack. Have a helper press a piece of wood up from the inside of the shell to brace it against the pressure of the drill. So are thousands of other diyers. Installing the solar panels is done by using unistrut cone connectors 1 4 inch or 3 8 inch to attach to the slotted steel l brackets.
Both cone connector sizes are available at big box hardware stores. Fed up with your utility power company.