On Tue, 20 Dec 2011 18:11:37 -0500, "Justin Time" wrote:

Anyone every hear about a "Hot Roof" insulation? Any experience? Feedback?

Without context it could mean a lot of things but a "hot roof" is where there
is no free air space between the deck and the insulation. The insulation is
installed directly to the bottom of the decking, rather than having the
typical soffit and ridge vents (or other ventilation means). This is often
done when using the spray foam insulation. I have no experience with this
sort of insulation/roofing system but it's supposed to work. It seems
counterintuitive to me.