Commercial, Mixed-Use and Strata Roof Maintenance in Vancouver, B.C.

Moisture In The Attic? You Need An Attic Dehumidifier.

Moisture In The Attic? Do You Need An Attic Dehumidifier?

Is your attic often damp? Is the air in the attic moist? Does the air in your attic seem stale or smelly? If the answer to these questions is Yes. Then it seems that your attic is not properly ventilated. These may be the signs to install an attic dehumidifier.

An attic dehumidifier is a device that extracts moisture from the air in your attic and releases fresh dry air into it.

In this article, we will learn more about the attic dehumidifier, how it works and why you need it. We will also see some alternatives to an attic dehumidifier.

What Happens If There Is Condensation In Your Attic?

Condensation in the attic may be a severe issue since it can lead to a variety of problems. Some of the problems include:

Growth Of Mold And Mildew.

High humidity and moisture levels in the Attic can create the perfect conditions for the growth of mold and mildew. These infestations can cause serious health problems.

Mold and Mildew are especially bad for people with asthma or other lung-related issues.

Damage To The Structure.

Excess moisture in the attic may harm your house’s structure, particularly the roof and framing. This can lead to costly repairs by compromising your home’s safety.

Decreased Energy Efficiency.

If the Attic is poorly ventilated or has high moisture levels. It can cause the insulation to become wet and is less effective at keeping the house warm. As a result, energy efficiency will suffer, increasing power consumption.

Poor Indoor Air Quality.

The presence of moisture in the attic can lead to poor indoor air quality. Leaving the air stale and musty. This happens due to the lack of proper ventilation.

Click on the link to check out different types of vents to efficiently ventilate your attic.

Signs Of Moisture In The Attic

Here are five signs of a moist attic:

  • Water stains or discoloration on the ceiling or walls.
  • Condensation or frost on windows or other surfaces in the attic.
  • Blistering or Peeling paint on the ceiling or walls.
  • Mold or mildew growth on surfaces in the attic.
  • A damp or musty smell in the attic.

What Is an Attic Dehumidifier?

An attic dehumidifier is a device that removes excess moisture from the air in an attic. A dehumidifier draws moist air from its surroundings and releases dry, moisture-free air back into the room.

This device is used not only in the attic but in places where it’s nearly impossible to get rid of moisture naturally.

An attic dehumidifier offers controlled ventilation in the attic if the home’s ventilation system isn’t effective enough.

How Does an Attic Dehumidifier Work?

An attic dehumidifier pulls air from the surrounding environment and passes it over a cooling coil. As the air passes over the coil, the moisture in the air condenses and is collected in a tray or bucket. The dehumidifier then releases dry, moisture-free air back into the Attic.

The dehumidifier is typically connected to a power source and can be controlled using a control panel or a remote. The user may adjust the dehumidifier’s settings to get the appropriate humidity level in the attic. The attic dehumidifier will continue to operate until the humidity level in the attic reaches the desired level, at which point it will turn off or reduce its output.

Some dehumidifiers also come equipped with a humidistat, a device that measures the humidity levels in the air and automatically adjusts the dehumidifier’s output to maintain the desired humidity level. This helps conserve energy and ensures that the dehumidifier is only running when needed.

How To Maintain An Attic Dehumidifier?

It is essential to clean and maintain the attic dehumidifier regularly to guarantee proper functioning. This may include emptying the tray or bucket that collects the condensed moisture, cleaning the filters, and checking the control panel and other components for any issues.

Proper maintenance and cleaning may prolong the life of the dehumidifier and guarantee that it successfully eliminates excess moisture from the attic.

There are several factors to consider when choosing an attic dehumidifier, including the size of the unit, its capacity, and its energy efficiency. It is also a good idea to choose a dehumidifier with an automatic shut-off feature to help conserve energy and prevent the unit from running when it is not needed.

Alternatives To Attic Dehumidifier

An attic dehumidifier is generally used in attics where no other method of dehumidification works. So, before installing an attic dehumidifier try out the following methods to ventilate your attic.

Steps you can take to prevent dampness and condensation in your attic

Improve Ventilation: Make sure there are enough intake and exhaust vents to keep the air circulating within your attic.

Insulate The Loft: Proper insulation can help to regulate the temperature and humidity levels in the loft, which can help to prevent condensation.

Seal Any Air Leaks: Air leaks in the loft can allow moisture-laden air to enter the space, contributing to condensation. Sealing these leaks can help to prevent moisture from entering the loft.

Use A Loft Hatch Cover: A loft hatch cover can help to keep moisture out of the loft by sealing the opening around the hatch.

Repair Leaks: Make sure all the leaks in the roof are taken care of. As water seeping through cracks or exposed roofing layers is the primary source of moisture in the attic.


By installing a dehumidifier, you can prevent dampness and condensation in your loft and protect the structure from the effects of moisture. If you have any more questions regarding the dehumidification process or the installation and use of an attic dehumidifier, comment below.

Also, if you need someone to inspect your attic for signs of moisture, condensation or leaks connect with us anytime.

Leak-Stop is a one-stop destination to meet your roofing-related requirements. We offer roof repair, replacement, maintenance and inspection services all over GVRD (Greater Vancouver Regional District).

We offer a free inspection to first-time clients. Connect with us TODAY at 1 866 777 0084 for immediate assistance!

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