About to drill through the roof to mount solar panels- tips?
Just that. :) I've got 200W of solar I'm planning on wiring up today.
Forum Discussion
If the roof is fibreglass, just clean it thoroughly with acetone where the brackets go, roughen the contact area and the bottom of the aluminium angle brackets with abrasive paper, put a dollop of polyeurethane adhesive (Sikaflex have some good ones) on the contact area and lower the panel with brackets attached down onto the adhesive blobs. Press down only enough to spread the adhesive and try to maintain an adhesive thickness of 2 to 3 mm. Leave at least 24 hours.
It will never come off until you cut it off.
Down the fridge vent is quick and convenient which is why the so-called professionals use it, but if that means the wiring runs get too long, then I have no qualms about drilling down into a cupboard beneath or just adjacent to the panels and running the wires down and gunking around the cables and for an inch or so on the roof with the same adhesive. Never had one leak yet.
Given that the average RV roof has already has a heap of big holes in it, one or two 1/4" holes is neither here nor there.
It will never come off until you cut it off.
Down the fridge vent is quick and convenient which is why the so-called professionals use it, but if that means the wiring runs get too long, then I have no qualms about drilling down into a cupboard beneath or just adjacent to the panels and running the wires down and gunking around the cables and for an inch or so on the roof with the same adhesive. Never had one leak yet.
Given that the average RV roof has already has a heap of big holes in it, one or two 1/4" holes is neither here nor there.
