Quote:
Originally Posted by biker1
Homes may be better sealed than previously but the physics of radiative transfer hasn't changed since 1979. There is a reason why radiant barriers, if properly installed, work. Power ventilators are not worthwhile. Reread my post as I used the words "may also suck conditioned air if the ceiling penetrations aren't sealed well ".
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Ah, the difference between us is I know exactly how much radiant barriers save and you do not. Bottom line is radiant barriers will not save enough in your grandchildrens lives to pay for themselves.
I also have toured under construction homes here and have seen the sealing of the ceiling penitrations. Now if I were doing the ceiling it would be better but they certainly are sealed 'well' also the duct connections are sealed.