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 because they don't address the primary mechanism of heat transfer. Reread my post as I used the words "
may also suck conditioned air if the ceiling penetrations aren't sealed well ".
Quote:
Originally Posted by Toymeister
It has been researched for identical homes built in (wait for it)
1979
Air ducts and homes in general are much more airtight then they were 41 years ago. It is a rumor that refuses to die.
|