Installed the controller. The wires were labeled well and easy to get. Added a piece of mdf wood behind the panel.
Solar panel mounts. Made the decision to use aluminum unistrut. With the unistrut end caps and channel cover. Mounted unistrut to the roof using 4 1/4"x3" stainless lag screws. Was able to hit truss's on all 4 screws. Put a 5 foot piece of butyl tape between roof and unistrut. Dicor on bolts and around the perimeter.