UV is the biggest enemy for the (epoxy-)resin, not for the carbon tissue itself.
Nevertheless unprotected black carbon/resin laminate will heatup considerably in the sun.
OK Capt. Semantics, carbon fiber parts aren't much use without the resin now are they?
"I said, now, I said ,pay attention boy!"
The cure for anything is salt water - sweat, tears, or the sea Isak Dinesen If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most. E. B. White