Trade-Off Worksheet

The trade-off worksheet enables you to enter insulation and window efficiency levels on a REScheck™ (formerly MECcheck) worksheet and then hand-calculate a total "U_o-value" for the project. By comparing the project's U_o-value to the value required for the climate zone, you can determine if the project passes the MEC requirements. Download the Trade-off Worksheet Guide below to use this approach.

The guide includes an Introduction to REScheck, the Basic Requirements Guide, and the Trade-Off Worksheet User's Guide which provides detailed instructions for using the trade-off worksheet approach.

The following REScheck guides are available in Adobe Acrobat PDF Format. Download Acrobat Reader. Click on the desired document (PDF) in the following table to download.