Fiberglass roof

If it is a true fiberglass roof, just use marine top side paint.

I was looking for a quick fix to stop the chalking running down the sides

goff1256 wrote:
I was looking for a quick fix to stop the chalking running down the sides

If you have bad chalking, nothing will be quick and easy.

Sand lightly, wipe down with mineral spirits or acetone, paint.

if it is fiberglass it would not be chalking did some coat roof with something it was not to have be done? My Georgetown 34.4 triple slide never been touched just caps with sealer and it's a 06.

a good wash with barkeepers friend and two coats of mop and glo you will be good to go. one caution don't let the mop and glo drip down the sides

Since it's fiberglass, and, just like any boat, Corvette, or anything else fiberglass, just wash it good, get all oxidation off and, put a good coat of automotive wax on it instead of covering up oxidation with paint or any other product. I did it years ago and mine still shows in great condition with no oxidizing whatsoever.
Scott