This is a pretty good rundown on what the various ratings on windows such as U-factor, SHGC,
air infiltration mean, and how they are calculated.
Not exact matches
Additionally, the greater
air infiltration rates of open cases typically result in more frequent defrost problems, which can then
mean more service calls.
I was simply pointing out that everyone from Bucky Fuller to his disciple Norman Foster and a whole lot of yurt builders have claimed that they are aerodynamic; the
air flows around it instead of exerting pressure on flat walls,
meaning less
infiltration.