ADVICE

Are you familiar with condensation?

National Geographic Channel describes CONDENSATION as a process by which water vapor becomes liquid water. There are two circumstances at which condensation occurs: 1. The air becomes over saturated and cannot hold any more water or 2. The air is cooled to its dew point. It appears as water droplets on the glass of windows and doors in cold weather. The main question is can you blame your new windows or doors? The answer to this question is NO and here are reasons why…

What causes window condensation?

Condensation usually occurs on windows first because glass surfaces have the lowest temperature of any of the interior surfaces in the house. Window condensation forms as a result of excess humidity in your home. The glass provides a cold surface on which humidity can visibly condense – similar effect is seen on the glass of a cold drink.

Why do I have indoor humidity?

Moisture in the air is a natural phenomenon and it condenses when in contact with cold surfaces.

What causes excess humidity?

There are many factors that can generate it; Heating systems, humidifiers and plants can all cause excess humidity. Running errands like cooking, cleaning, bathing, laundry or watering plants can all add moisture to the air in your home.

Why my old windows didn’t have condensation and new ones do?

It is very common for new windows to accumulate condensation. This is due to high insulation of new product and airtight which makes it difficult for excess humidity to escape. Unlike old windows, that often have cracks. When experiencing condensation on new windows it simply means excess moisture in your home. During heating season, it is natural for condensation to appear (it is often temporary). Quick drops in temperature is another reason for condensation during heating season.

How can I reduce humidity in my house?

• Open a window for short duration, to ventilate the house and dilute humidity
• Install and use kitchen and bathroom exhaust fans to vent humid air
• Limit the use of humidifiers
• Dehumidifier can be used
• Control the source of moisture

Recommended Humidity
Outside Temperature	Inside Relative Humidity
-29°C (-20°F)	15 to 20%
-23°C (-10°F)	15 to 20%
-18°C (0°F)	20 to 25%
-12°C (10°F)	25 to 30%
-7°C (20°F)	30 to 35%
> 0°C	40 to 60%