quote Moonman: "Yes, a cooling temp is best. This can be demonstarted easily by doing a test panel and placing a light bulb a couple feet away. You will see bubbles form just in that spot. You'll notice the inside is worse than outside because air could escape through the inner hull when the outside was done. Another option is to precoat the inside with a thin layer of epoxy before coating. Lots of info on this topic can be found on the bear mountain boats building forum.
Best overall approach is to glass the boat with slightly warmed epoxy in a a room with a dropping temp.
Moonman."
I agree with everything except adding the pre-coat layer. This adds weight to the boat and does not eliminate outgassing.Just let the work space cool slightly as you go to eliminate the problem.
Tom