Forum Discussion
wintersun
Sep 06, 2013Explorer II
It depends on the roof and how it was constructed. My Lance has a thin TPO membrane over 1/4" luan. Nothing to screw into and the membrane is not attached in the middle to the luan so VHB was out of the question. What worked on one person's metal or rubber roof over 1/2" plywood or particle board is not necessarily going to work on another camper unless the roof construction is identical. And it can change year to year or model to model for the same manufacturer.
I had two options that would be 100% reliable. First option was to drill 1/2" holes in the roof and use well-nuts and lots of Dicor. Second option was to make a frame from angle aluminum and fasten it with self-tapping screws to the metal framing that runs along each corner at the sides of the camper. I opted for the second option. My chances for hitting one of the two pairs of side frame's square tubes was 100%. As it turned out all my screws on all 4 tubes hit metal.
I had two options that would be 100% reliable. First option was to drill 1/2" holes in the roof and use well-nuts and lots of Dicor. Second option was to make a frame from angle aluminum and fasten it with self-tapping screws to the metal framing that runs along each corner at the sides of the camper. I opted for the second option. My chances for hitting one of the two pairs of side frame's square tubes was 100%. As it turned out all my screws on all 4 tubes hit metal.
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