does anyone have any good information on pcm's in construction materials?  are they available?  are they being used?  i see them mentioned every now and then when i'm researching green building, efficiency, etc., but i get the impression that these materials are not commonly used. what's the story?? any leads or info is appreciated.

http://peswiki.com/index.php/Directory:Phase_Change_Material
http://www.pcmproducts.net/hydrates.htm
http://www.pcmproducts.net/index.htm

Basf is selling in the US.
We have conducted extensive research on the use of mPCMs
If you email me I can send files giving you all the information you could possibly want.
Search Oak Ridge National Lab. Research concerning the use of mPCM in building materials

Someone posted some info on another forum and I recently posted one somewhere around here on PCM. Seems that some recipe of Glauber Salt has several times the heat storage capacity of water if I read right relying on the solid/liquid change somewhere in temps in the 70s-90s. I couldn't find much info on it at all especially anything near recent.

A fascinating subject with promise for sure.