Discussion Board Forum for Vinyl Windows

Sorry about the previous post deletion. I can't really comment on that but it appears to be automated in some cases. Air Infiltration (in my informed opinion) is 2nd only to U-Factor in terms of the overall performance of the unit. No worries. Ok well since an average original wood frame is .7, is ...

Softlite people talk about infiltration, I am wondering how important this really is for efficiency. I can't find any studies on how much air leakage occurs WITHOUT the 25 mph wind which isn't going to consistantly hit a window 24/7 obviously. I am thinking it would be a tiny fraction compared to wi...