Here is a picture of a large scale growing facility we sprayed in Southern Maine. We used Closed Cell Spray Foam Insulation. This was a perfect situation for a growing facility. The owner was concerned about moisture build up on the metal during the cold months and keeping the building cool during the summer months. This person has created a perfect building envelope that he can control very easily. Around 95% of the heat transfer is being stopped with this package. We also sprayed the steel framing as well to cut down on condensation.