Quote:
Originally Posted by cwatkins
The local code requires we have a hard-wired bathroom fan running 24/7.
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This is something I would personally fix if I were you, if dig into it you'll find that this particular feature isn't really because your house is that air tight, after all if it were that tight you would experience negative pressure issues from a 24/7 exhaust fan, chances are you even got some extra holes somewhere to let the house breath. The reason you have such a feature is a result from large insurance claims in the area back in the 80s after new Canada wide building codes were released from CMHC but they weren't up to par with your area and resulted in poor building practice and eventually mold issues leading to those insurance claims. Now you do require a ventilation system by code as do many other areas throughout Canada which is good. What's bad however is the fact the builders in the area are still cheaping out and selling houses with what they label as bathroom fan feature to enhance airflow in the house to prevent mold and mildew. Realistically this "feature" is more of a shortcut and even saves money as you no longer need a switch
Nothing more than a cheap fix/gimmick to barely pass code and help sell houses. At the very least it needs to be on a timer or even better a humidistat.