Cob Yoda's cob house

[Paul S. Hetrick]

>   What failure are you refering to about the double pane windows? 

I forget what list they were talking about it on, but somebody did
a long-term study and found the _bast_ windows had a failure rate
of something like 10% in 10 years.  Most failures were in the seal
between the panes that resulted in fogging and loss of R-value.  

I'm sorry I cannot remeber who did the study, or the exact numbers.
Does anybody else here know what I'm talking about?  Do I?

As a piece of ancidotal evidence, my parents replaced most of the
windows in their house about 15 years ago.  They went with one of the
best rated windows of the time.  They are now on their third bathroom
window and the second set in the kitchen.  I believe some of the other
windows also have bad seals, but don't get enough moisture to fog bad
enough, or are in unused rooms to be worth replacing.  Some of the 
windows have also been replaced due to redecorating so I cannot give a 
good percentage of failures in their house.

I do understand that an argument can be made that the windows of today
are better than the windows of 10 years ago, but I personally don't have 
enough confidence in them to pay what they want.

-->paul