badflash, when I tried to post a pdf document and the site wouldn't allow it. (The extension pdf is not allowed.) Here's the message, I tried to attach it again. Not sure if it was too big or because I'm a newbie member. The file is 1.91MB might be the problem.

The document was put out by HUD in 1994 and shows how to isolate your foundation from the cold air above ground and at the same time capture the ambient warmth in the soil below. It's part of the information on how SHCS works. I have a design in mind but as always ideas and money aren't linked together when it comes to bringing a concept to fruition.