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1L243's avatar
1L243
Explorer II
Apr 18, 2021

Solar Panel Height

I posted this at the end of a old thread but I think it has ran it's course.

After viewing many photos of RV Solar Panel installs I see a big difference in the distance between the roof of the RV and the solar panel. Some appear less than a inch some 5" OR 6" from the roof to panel.

In my case I used Renogy two piece mounting brackets and as low as I could go is about 3" on the ends. My roof has a curve so a little less in the center of the panel.

I have to admit I like the look of the panels being closer to the roof but what is the ideal or is there a ideal recommended height for solar panels.

I did read that 3" is minimum with 4" to 6" preferred but not sure if they were referencing RV's or solar panels in general.

Apparently the height has to to with heat from the solar panels, just how hot does it get under there?

Any thoughts?
  • Mine are at a height of maybe an inch or two, as determined by the standard commercial mounts that allow tilting. They've been up there for a decade, in almost constant sun, in 90F or more temps (not Death Valley heat) and my rubber roof shows no signs of heat damage.

    What I love about solar panels, other than the obvious, is they actually protect your roof from damaging sunlight.

    The panels that scare me are the flexible ones I see plastered directly on a roof. Those things get really hot.

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