"Humidity"

Humidity / Green Building & Sustainable Home Renovation Information & Advice

Walls and Roofs

What is Interstitial Condensation in Walls or Roofs? (And how to stop it!)

...humidity levels in your home low enough, aim for below 40% Relative Humidity (RH), so step one would be humidity monitoring, followed by installing adequate heat recovery ventilation, and a dehumidifier sized properly for the volume of air you need to condition if necessary. Ironically, interstitial condensation is m...

Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...humidity levels will control the growth of indoor mold – so this is the key. Condensation is a symptom of other issues Consider condensation as a symptom and not a cause of home humidity being too high, so, if there’s condensation happening on windows, the first step we’d suggest is to get hold of a hygrometer or humid...

HRV and ERV

How to keep your HRV clean and operating efficiently

Why cleaning HRV units is so important When any machine has its normal operation hampered, it will reduce its efficiency and ability to function properly. Many of us are probably guilty of forgetting about basic maintenance of some of the mechanical equipment in our homes; keeping your HRV (heat recovery ventilator) c...

Ventilation

Ventilation & air exchangers

...humidity of 40% to 50% in indoor home environments. This range can be maintained under more or less all conditions with the only energy penalty being the electric for the blower to overcome the pressure drop in the system. If you need help choosing between an HRV & ERV system, see here Indoor air quality is importa...