When I first went to install Solar Panels on my RV, I realized that the Renogy Z brackets could be mounted to the panels, but once the panels were adhered to the roof of the RV, they could not be unscrewed from the feet. Additionally, I was against putting screws into the roof.
I have many good friends, and one of them machined offsets that allow the Renogy Z Brackets to the panels, and then the panel and feet to be unmounted to the RV roof easily. The offsets are machined aluminum, and come with stainless steel screws and lock washers. They are also useful for creating mounting points on the roof, or side of the RV. I use 3M VHB Tape to mount them; there are openings that will allow you to use the mounting screws that come with Renogy Z Bracket feet.
If you are interested in purchasing a set, please use the contact form below to get in touch. The offsets for one panel are $30 with $8.50 for shipping. The shipping remains constant, no matter how many sets you offer.