A prime concern in the renovation of Gallatin Hall was the preservation of existing exterior masonry while ensuring the building’s energy efficiency. The masonry had behaved consistently through the freeze/thaw cycles of the previous 80 years, and we were concerned that complying with modern energy codes and LEED standards could have an adverse effect by moving the location of the dew point. Using energy modeling programs, we were able to determine that with 1” thick spray foam insulation, we could achieve an exterior wall assembly with an R-Value of 6 that didn’t drastically move the dew point from ...[more]