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One- and Two-Family Dwellings (UDC) - Links


Building Contractor Registration Web page 

REScheck is a software application that has been created by the Federal Department of Energy for demonstrating compliance with building envelope requirements of various State building codes.  

Effective January 1, 2016, the Wisconsin Uniform Dwelling Code updated its energy conservation code to the 2009 International Energy Conservation Code.  As before, compliance with the UDC can be shown by use of the federal REScheck program.  However the newest software version available on the federal DOE website no longer has the option to calculate heating plant sizing. In order to continue to offer that service, here is a link to the older version of REScheck, build version (This may be confirmed by looking at “About” under “Help” on the menu bar of the software. Note that you may have problems if you have more than one version of REScheck on your computer).  If you use this version,  you must first calculate building envelope compliance by selecting the “2009 IECC” under “Code” on the menu bar, even though you may see a warning that your location requires use of the “Wisconsin 2009” code.  After printing that out and without exiting REScheck, you may switch your code to “Wisconsin 2009”, enter your county location and calculate your heating plant size on the Loads tab, as before. 

Alternatively to size your heating plant by hand calculation after you have calculated building envelope compliance per the 2009 IECC, you would perform the following calculations, ignoring the units of measure:

1.  Multiply the value in the “Your UA” field, from the Envelope tab of Rescheck, by the temperature difference for your dwelling location, which is 70 minus the value from the Outdoor Design Temperature of SPS 323.02(1) table and map in Appendix A of the UDC (link). (Note that subtracting a minus value is the same as adding.)

2.  Calculate your conditioned building volume by multiplying your total conditioned floor area including basements in square feet by its average ceiling height in feet. 

3.  Select an air infiltration rate between 0.2 and 0.5 air changes per hour, based on your estimated dwelling envelope tightness.

4.  Multiply the building volume value from step 2 by your selected air infiltration rate from step 3 and by your temperature difference and by the constant 0.018.   

5.   Add together the values from steps 1 and 4 to obtain your minimum heating plant output capacity, in BTU/hour. (Note that the UDC no longer has an over-sizing limit.)

Alphabetical listing of manufacturers of approved building materials.

Information for municipalities to adopt the Uniform Dwelling Code
- Model 
ordinance for adoption of Wisconsin Uniform Dwelling Code.

Look for currently registered UDC Inspection Agencies and UDC Inspectors.

Wisconsin Department of Natural Resources "
Locating Wetlands" Website.

The Wisconsin Department of Natural Resources (DNR) requires proper inspections, notification and removal of asbestos containing materials for renovations and demolitions. For more information on Wisconsin Administrative Code, 
NR 447 go to the DNR asbestos website.

Online video courses offered by the U.S. Department of Energy about building energy codes.
See catalog.

Department of Health Services has a Lead Safe Wisconsin page.


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