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
On metal and EPDM roofs people use either Dicor self-leveling lap sealant or Geocel Advanced RV EPDM roof sealant. Cant's say about fiberglass. I tried both, and like Geocel better, cures faster and no shrinking. Though have to be careful when it's very hot - might skin too fast. Dicor is also better to use when it's not too hot.
Other sealants are mostly inferior for this application, from what I hear from people.
Both metal and EPDM membranes require screws in addition to sealant, you can't rely on sealant for fastening. Again, fiberglass is different.
Other sealants are mostly inferior for this application, from what I hear from people.
Both metal and EPDM membranes require screws in addition to sealant, you can't rely on sealant for fastening. Again, fiberglass is different.
