Thanks for all the replies. Yes, I was very serious about the year after year storage of mainly a newer, non CF boat, and possibly a CF mast though, like the Inter 20 has.

I also realized that ANY water trapped in the hull/glass lasyers would expand when frozen, ever so slightly. That's whay I asked about this.

Karl, I had seen the pics of your boat in the basement, and remember you had put in thru the window piece by piece. Believe it or not, I'm now in the market for a house, and have been also trying to get a basement in which I could do the very same thing over the winter! I'm now in a suburb of Milwaukee.