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DAS26miles's avatar
DAS26miles
Explorer II
Nov 27, 2017

3M 5200 Adhesive caulk for solar mount with screws

Mounting 100 watt solar panel using z brackets. Going to use 6 or 8 to be safe. Wondering do I put down adhesive caulk under each mount , lower and screw it down. Then cover with the adhesive caulk...
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DAS26miles's avatar
DAS26miles
Explorer II
Nov 27, 2017
Roof is thin fiberglass maybe 1/32”, 1/8” Luan plywood and 2-3” styrofoam. Not a lot for the screws to grab. If there are struts, I can’t find them.
Only 3/4” gap between panel and roof. Maybe I can get a wrench in to loosen the nut, but they are lock nuts.

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