/ Home Page / Building Technology /

Bead Wall

Two glass panes with an inch or more of seperation. A vacuum and storage system can fill or empty the space between the panes with polystyrene or other insulating beads. A typical beadwall can give an efficiency of R11. Used in some greenhouses for heat control.

http://www.commonwealthsolar.com/cwbead.htm

Beadwalls are fun and effective.
Dave Lag

Efficiency Idea