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Controlling Basement Humidity for Home Health

By April 9, 2023April 25th, 2023No Comments

Basement humidity is a common problem that can have severe implications for home health. High humidity levels in the basement can lead to a range of issues, from mould growth to fungus growth to many health ailments and so on. Controlling basement humidity is especially important for homeowners in Canada, where wet weather and damp soil can exacerbate the problem.

In this blog post, we’ll highlight the causes and effects of basement humidity and share some tips for controlling it. We’ll cover everything from waterproofing your basement to using dehumidifiers and ventilation systems to reduce humidity levels. By the end of this post, you’ll better understand how to maintain a healthy home by controlling basement humidity.

Understanding Basement Humidity

Basement humidity is caused by a variety of factors, including moisture from the soil surrounding the foundation, water leaks, and poor ventilation. The ideal humidity level for a healthy home is between 30% and 55%. Anything higher than that can lead to mould growth, which can cause even more health problems. So it’s important to monitor your basement’s humidity levels to ensure they remain within this range.

Causes for basement humidity

Basement humidity can be caused by a variety of factors, many of which are related to moisture intrusion. Here are some common causes of basement humidity –

  • Water intrusion – One of the most common causes of basement humidity is water intrusion, which usually occurs when water seeps through cracks in the foundation or when the drainage around the home is inadequate. Heavy rain or snow can also lead to water intrusion.
  • Poor ventilation – Without proper ventilation, moisture can build up in the basement and lead to high humidity levels. This is especially true in poorly insulated basements or with a low ceiling.
  • Humid outdoor air – If the air outside is humid, it can enter the basement and cause humidity levels to rise. 
  • Moisture from appliances – Appliances such as washing machines, dryers, and water heaters generates moisture into the air, contributing to high humidity levels in the basement.

Methods to curb basement humidity


  1. Waterproofing Your Basement
    One of the best ways to control basement humidity is through waterproofing. By doing so, you can help prevent moisture from seeping into your basement. There are several types of basement waterproofing, namely exterior waterproofing, interior waterproofing, drainage systems, etc. Each has its benefits and drawbacks, and the right choice is case-dependent. For example, if your basement has a history of water leaks, exterior waterproofing may be your best choice.
  2. Proper Ventilation
    One of the simplest ways to control basement humidity is through ventilation. The best way would be to ensure the basement has proper ventilation, whether through windows or a ventilation system which will help reduce humidity levels and prevent mould growth.
  3. Use a dehumidifier
    A dehumidifier is a perfect tool to remove excess moisture from the air. Having a dehumidifier installed would ensure that humidity levels are reduced, and mould growth gets prevented. When considering a dehumidifier, choosing one that is appropriately sized for the basement is advisable.

Preventing basement humidity is often easier than controlling it once it’s already present. Therefore, regular maintenance is critical to preventing basement humidity. This includes checking for leaks and moisture sources, such as a leaking pipe or a crack in the foundation, and addressing them promptly. Additionally, be sure to clean your gutters regularly to prevent water from pooling around your foundation.

There are also some simple tips to reduce moisture in your basement. For example, avoid hanging wet clothes to dry in the basement. In addition, it is imperative to make sure any appliances that produce moisture, such as a washing machine or a dryer, are adequately vented to the outside.

Controlling basement humidity is essential for maintaining a healthy home. High humidity levels can lead to a variety of health problems, as well as cause damage to your home. You can keep your basement humidity levels in check by waterproofing your basement, using ventilation and dehumidifiers, and preventing moisture sources.

At Umbrella Waterproofing, we specialize in basement waterproofing to help prevent moisture from entering your home. If you’re encountering any problems with waterproofing, then do not worry, as we’re here to help. Contact us today to learn how we can help you control basement humidity and maintain a healthy home.