Quote:
Originally Posted by screener
Air tight with ventilation rather than leakage, stop leaks because they are drafty, bring in heat exchanged air, oxygen levels are maintained, heating bills are lessened, pocketbook feels heavier. bonus.
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There's a fine line between what is considered a draft and what is considered ventilation in most houses. Heat recovery from heat escaping is available for things like loft areas, and triple glazing can be used to heat incoming air:
Air Flow Windows
Air Flow Windows
There have been studies on them, but don't know of the results off hand.
Normal double glazing people will tell you that there windows are draft proof, but then go on to tell you that they have trickle vents (well they need them). Like I say, ventilation/ draft - there's a fine line.