Jim Vincent wrote:

Bob, Thanks for your detailed insights. What are your thoughts on the affects
of a fiberglass trailer painted with regular ol' paint instead of gel coat.
Does any UV make it through the trailer to affect the glider within? TIA.

I don't know whether the UV will make it into the trailer. However, I do
know that the UV will destroy the "regular old paint" rather quickly. In
another life, I owned a wooden boat which was on the water the whole
year without a cover. The UV literally burnt the whole paint away within
two years. And this wasn't "regular old paint", but specialized UV
resistant boat varnish.

Stefan