What is the cause?
Condensation on the interior surface of the insulated glass a room is due to the ambient humidity, which must be controlled based on the outdoor temperature.
In early fall, when the heating system is not consistently on, the humidity level in the home may be too high, leading to condensation problems on the interior surface of the glass.
Of course, humidity is essential for your health and comfort, but it is important to know how to control it in order to prevent problems, such as high heating costs, discomfort or even mould. And controlling ambiant humidity can be a challenge for any house types.
|Renovated Homes||New constructions|
Over time, your home’s doors and windows will deteriorate, which may result in air leaks … these are good for releasing humidity, but can harm your quality of life and wallet.
Moreover, by renovating your home or buying new window products, you are indeed controlling the air leaks, but then you have to watch for the ambient humidity level using a hygrometer.
There are some lifestyle habits that affect humidity levels; you can improve this situation by reading our tips below.
Did you have your home built?
You should know that it is normal for condensation to appear in the first year, and it has nothing to do with your window products.
During the first winter in a home, several materials, such as gypsum, concrete/cement, wood, etc. gradually dry, and, as a result, produce condensation.
Therefore, we recommend that you read the tips below to maintain the value and airtightness of your home.
During winter, the ideal humidity level for those living in the home is between 15% and 40%. Lower than 15% irritates the respiratory tract, according to medical authorities.
For example, when the outdoor temperature is below -10°C, the recommended humidity level is 30%.
The following chart provides the recommended relative humidity levels:
|Relative Humidity with an Indoor
Temperature of 20°C (68°F)
|-30° or under||No higher than 15%|
|-30° to -24°||No higher than 20%|
|-24° à -18°||No more than 25%|
|-18° à -12°||No more than 30%|
|-12° à -6°||No more than 35%|
|-6° à 0°||No more than 40%|
|Source: CMHC Canadian Mortgage and Housing Corporation. www.cmhc-schl|
Follow our advice
Here are a few tips to reduce humidity levels and keep your home comfortable:
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