Radiant Barrier Insulation

My friend had his corrugated metal shop sprayed with foam on the inside. He had a company come in and do the whole interior. We live in a very, very hot humid climate so he was looking for energy savings because he uses AC most of the summer (9/10) months a year. We both found it amazing how much the spray foam helped. On the few cold days we do have he has to open both bay doors to let the cold out and the sunlight in. On all the other hot days he hardly has to run the AC because the building retains the cool from being empty all night. It was money well spend and I never would have thought that the spray foam would be so efficient at keeping the heat out in the summer and keeping heat in during the winter. Don't know what your spending limits are but you'll be happy with the spray foam if you decide to go that way!!!