Ted.. could you point out what page in IRC 761 the data is on. I couldn't find where they had the insulation touching and then not touching the surface. I also couldn't find where they had the insulation in the middle. Thanks. I think this has gotten way blown out. If there's a good reason to not have insulation lightly touching your inner wall I would be all ears. It has to do something, touching. As it can not do nothing. Science won't allow it. And I don't think anyone has actually tested "lightly touching" against "definitely not touching". All the data on 761 just says "in this cavity." To me it doesn't matter what anyone else does, I'm having mine lightly touch, because it "has to do something" measureable or not and that makes feel better. Not that I'm designing my studio around this.
