Independence Day Help Desk Staffing

The Building Energy Codes Program will have reduced staffing July 4 – July 8, 2024 for the Independence Day holiday weekend. Response times may be delayed. Please expect to receive responses after July 8, 2024.

Does REScheck account for compression of insulation in a wall assembly

Answer

REScheck uses nominal insulation R-values. The program does not calculate for compression. For example, if R-19 is entered as the cavity insulation R-value, it assumes the full R-19 in REScheck. Walls with insulation R-values equal to or less than R-15 are modeled in REScheck as having 2x4 studs at either 16" or 24" O.C. (on center) and cavity wall insulation R-values greater than R-15 are modeled as 2x6 studs at either 16” or 24” O.C.

For more detailed information on how the walls are calculated please refer to the REScheck Technical Support Document.