Posted 12/21/2008 17:10 (#542459 - in reply to #542365) Subject: Re: Insulating a floor(Home machinery?)
SW Ohio
I think that urethane is better suited for out buildings. When I shopped for foam I was told that the urethane is harder and more R factor per inch but is toxic if it burns. I would check on that before I used it.
Icynene only out gasses steam when applied and does not support combustion. Short blurb here. http://www.youtube.com/watch?v=RfW4ifqWNf8&feature=related