Adhesive for steel solar brackets to aluminum roofs

YC 1 wrote:
You don't have to find a frame member. The wind load is low and the screws just add additional security. To prevent drilling into wires you can pre-drill very small pilot holes using several wraps of electrical tape on the shaft of the drill bit to make a depth stop. Then gently insert a small wire down the hole to test clearance. Be sure to use short screws when you fasten.