DF Technical & Consulting Services Ltd.
Indoor Air Quality and Environmental Experts


3 Ways To Prevent Mould Growth In Your Home During The Winter

In order for nasty mould to rear its ugly head in your home, it requires a particular set of conditions. A dark and damp location with little to no ventilation will generally do the trick. A warm and humid environment always helps as well. This is why mould growth should be a particular concern of yours during the winter months.

Because it’s so cold outside, we all tend to shut the windows and turn up the heat, right? This presents the warmth necessary for mould to grow. Add the strong possibility of condensation on the windows or leaky roofs to the equation and now you have those all-important wet spots to set the perfect situations for mould to develop.

Looking to avoid seeing any mould in your home this winter? Here are three ways to prevent it from growing:

1. Set your ceiling fans to turn clockwise.

Were you aware that your ceiling fans should be used to circulate the air in your home during both the summer and winter seasons? If so, were you aware that the rotation of the ceiling fan should be different in each season? During the summer, it should turn counter-clockwise, while in the winter, it should turn clockwise.

“If you have all the fans in the house set this way, cold air is pulled up and warm air is drawn downward, which not only keeps your home warmer but keeps the utility bills lower too,” explains ServiceMaster NCR, “Your furnace won’t have to turn on as often, so your budget will thank you. Ceiling fans move air around, which keeps condensation from building up on cold walls and windows, which is another source of mould growth.”

2. Dry all wet areas immediately.

We recently spoke to a colleague who informed us that her roof had some leaks in it. Following a recent snowstorm, the leaks became serious issues. No less than three buckets were necessary to catch the drips on the days following the snowstorm when the white, fluffy stuff was starting to melt. Almost immediately, she noticed brownish stains on the walls and the ceiling. Clearly, the onset of mould doesn’t take very long.

Obviously, it’s pretty important to dry any and all wet areas as soon as you see them. “Many parts of the house—windows, mirrors, plumbing pipes— tend to be chronically damp in winter due to ongoing condensation,” informs Rytech, “Quickly removing moisture with a towel prevents these areas from becoming potential focus points for mould growth.”

3. Use exhaust fans in your kitchen and bathrooms.

We admit that this is a year-round tip. But it deserves to be repeated. Don’t take the exhaust fans in your kitchen and bathrooms for granted. They’re in there for a reason. Both rooms are prone to have a lot of moisture. Without turning on the fans, the moisture is more susceptible to pooling, providing greater chances for mould to develop.

“Proper air circulation doesn’t allow moisture to build up and feed mould spores because the fans remove it to the outside,” says ServiceMaster NCR, “Cooking and bathing create more steam in winter because there’s a greater temperature contrast between the indoors and outdoors. Be sure to use exhaust fans every time you cook or bathe and consider keeping dehumidifiers in these rooms to help with mould control.”

Let’s work together on preventing mould growth in your home this winter! For information about our Mould Assessment Services, please don’t hesitate to call us at 1-855-668-3131 or email info@dftechnical.ca.

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