I used 2 lengths of uni-strut the same length as my panels. I attached butyl tape to the under side of the unistrut and attached uni-strut to the roof using either 5/16" screws or 1/4" toggles. then covered screws with dicor. to keep the water out of the uni-strut I added sheet metal bent on 3 sides to cover the top of the uni-strut. I then attached 2 more uni-struts to the ones mounted on the roof. this way I can place the panels just about any where I needed. also good for the next set of panels if I ever need to change them. even with the wind guards the panels are able to tilt.
2015 Thor Ace 30.2
1240 watts solar/batteries 1450AH
Sue and Tim Affourtit