PSD Calculator

PSD Calculator contains a growing list of simple Building
Performance functions, such as air exchange rates and area
calculations. It is free to download and use. Our home performance
contracting auditors use it for a quick reference.

PSD
Calculator 0.8 is available as of 8/9/2006. We will continue to release
updates periodically. Useful feature requests will be considered.

Download: PSDCalculator.zip