> > I wanted to find mean time before failure, as double paned normal glass > seems to fog and fail very swiftly
20 years, if you're lucky? Then it's complete replacement time, which is ludicrous. I was able to find Pella 2-pane NON-sealed glass for our addition. A fractional percent less energy-efficient, unless you consider the energy burned to manufacture and replace it periodically. Not even sure you can get it anymore. -- Jim _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
