Frequently Asked Questions (FAQs)

Topics - building envelope - basement - walls - Residential
After selecting a basement wall type, a basement wall illustration will appear with input boxes for the basement wall height, depth below grade, and depth of insulation. The illustration helps identify the dimensions being requested. You may enter...
Topics - building envelope - walls - Residential
Walls that do not fit into any of the preset categories in REScheck (preset categories come directly from the applicable code currently selected in the Code menu) may be entered under the "Other" wall type. When "Other" is chosen as the wall type,...
Topics - lighting - Residential
The 2009 IECC requires that a minimum of 50% of the lamps in permanently installed lighting fixtures be high-efficacy lamps (2009 IECC, Section 404.1). The 2012 IECC has increased the minimum percentage from 50% to 75%, along with an exception for...
Topics - addition - alteration - building envelope - Residential
REScheck determines compliance for additions in the same manner as new construction. When entering an addition, only the new portions of the building need to be shown in the software. REScheck will perform trade-offs between envelope assemblies...
Topics - walls - Residential
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...
Topics - city not found
Choose a city that is the closest with the most similar weather.  Check with the building official where the project is located to confirm the city selected will be acceptable or if choosing “county” as the designation would be more appropriate. ...
Topics - printing issues - desktop versions
There are a couple of things to try: Completely remove REScheck or COMcheck Use the Windows operating system “Programs and Features” uninstaller Open Windows Explorer and navigate to C:\Users\<your username>\AppData\Roaming\<REScheck or...
Topics - basement - walls - performance alternative errors
The problem most likely relates to the basement walls you have specified. The DOE-2 simulation program used in REScheck for performance alternative calculations sometimes generates this error even though the entries appear valid.  As a workaround,...