I'm a newbie with ESP-r (and also an undergrad civil engineering student), and I'm looking for a way to numerically validate the exercises in the cookbook to ensure I'm doing them properly, beyond just the charts that are reproduced in the cookbook - this is especially important for me ,since I don't have the 'evolved intuition' about building science that most users have, so I need some quantitative proof for myself and my supervisor that I know how to use the program. Thanks for your help, Evan Sterling Civil Engineering and Applied Math '08 Queen's University, Kingston, Ontario <a href="mailto:3nes@queensu.ca" target="_blank">3nes@queensu.ca</a> | <a href="mailto:sterling.evan@gmail.com" target="_blank">sterling.evan@gmail.com</a> (613) 547-3629