Which adhesive caulk for solar panel mounts??
My CW has Sikaflex in 221, 505 and 715. Which one is best to mount solar mounts to thin fiberglass roof along with screws?
Forum Discussion
Under the very thin dimpled fiberglass is luan .20". The RV manufacturer recommended hollow wall anchors that flare out when tightened. Using Stickyfeet and 1 or 2 anchors per mount. then covering with the adhesive caulk. Adding extra mounts and using the anchors because we encounter high wind gusts in our travels, sometimes head on. Might be overkill, but it's for peace of mind.
