Just read about First National Panel concrete panel system in Automated Builder magazine.  A lightweight concrete panel system that achieved 200-300mph wind resistance.  Says they are R19 but I don't see any insuation.  Are these some type of AAC?  Anyone have experience with them?  It could be good that they are local here in MN.

They say they have chases built in to have concrete wall finish on interior and exterior but I didn't see horizontal chases.


http://www.fnpc.net/



Also in that issue was an article about thin shell concrete system w/ thermally efficient metal studs TCMP Building Systems. 

http://www.tmcp.ca/