Insulation of non-conditioned space
Insulation of non-conditioned space
(OP)
I have a pre-engineered metal building that I am doing construction management on. The question was raised why the building was not insulated to prevent condensation. It is my understanding/belief that if the area is not heated or cooled the temperature difference between the interior and exterior should not be great enough to develop condensation. The building is located in Midwest (St. Louis, MO) as a reference.
Does anyone have any experience in the requirement of roof insulation in not conditioned spaces or any article that may help?
Thanks!
Does anyone have any experience in the requirement of roof insulation in not conditioned spaces or any article that may help?
Thanks!






RE: Insulation of non-conditioned space
[Edit:] Per Lstiburek the keys to understanding the issue are:
1. Understanding that moisture moves from hot to cold.
2. Knowing that, put the insulation in a location that will not cause there to be a thermal break on the indoors side of the vapor barrier.
3. Knowing that, putting the insulation on the outside of the vapor barrier will always work.
But please watch the video and let him speak for himself. This is not my field and you would be ill-served relying on my understanding of what he said.
RE: Insulation of non-conditioned space
RE: Insulation of non-conditioned space
RE: Insulation of non-conditioned space