“Is it normal for the attic to be wet?”

This is a common question homeowners ask during a hot day after long periods of cold weather. As temperatures drop, moisture from the air outside begins to accumulate and turn into frost beneath the roof trusses and on the sheathing. When the climate is freezing and is quickly followed by an intensely sunny day, moisture buildup or condensation in the attic occurs.

But what is attic condensation, exactly?

What is Attic Condensation?

Attic moisture buildup or condensation is the term used to refer to the event where moist, warm air from the outside collects inside the attic and freezes. When a warm spell hits, the frozen water melts and “rains” all over the insulation.

While attic condensation is not typically a problem in homes with decent ventilation and airflow, there may be instances where the buildup results in leakage in the interior of the attic space and straight into other areas like the living room.

How Do You Know if You have Attic Condensation?

Attic condensation is easily noticeable by ice formation on the ceiling or in the vents, usually appearing as frozen sheets or round droplets. Another sign is when there are visual stains around bathroom fan vents, recessed lighting, and attic hatches. Moisture buildup also causes discolouration on the insulation.

Attic Condensation Prevention: Tips for Every Homeowner

How do you deal with condensation in the attic? You can start by working on the water source and then the heat.

Dampness is never a good sign in any home, especially when it starts to make its way through delicate components like the walls and insulation attic. Additionally, excessive heat will cause ice sheets to melt and shower the roof space. If you are having trouble dealing with attic condensation Calgary in your roof space, consider taking the following steps:

Ensure Proper Ventilation

Ventilation is a significant factor in preventing moisture buildup. Good airflow ensures that warm air and dampness will exit the attic smoothly, preventing them from accumulating in the trusses and sheathing. Additionally, good ventilation allows water to evaporate naturally from the insulation without leaving much damage behind.

Inspect your roof space for signs of air leakage and abnormalities in the ventilation system. Hire a professional to have them fixed if you spot a problem.

Direct Air Movement Outside

When you are planning for an attic conversion in Australia, ensure that the direction of air movement is directed outside. If you are using fans, vents, and other appliances and fixtures that move air, adjust them so that warm air won’t get trapped inside the roof space.

Use Kitchen Fans when Cooking

In some cases, much of the heat comes directly from inside the house. The kitchen is notable for generating most of the warmth that spreads across the property, particularly when cooking. Since heat accumulation is the primary culprit for moisture buildup, make it a habit to turn the exhaust fans on and maintain ventilation when preparing meals.

Consider doing the same when using the bathroom since this room is guilty of causing excessive dampness.

Install an HVR and Storm Door

A heat recovery ventilator is a type of ventilation system that replaces moist air inside the home with dry outdoor air. Installing HRV helps deal with damp air that might gather and freeze around the roof space. HRV also gives the benefit of increased air quality and household energy efficiency.

What is an attic storm door? A storm door prevents cold and warm air from entering the roof space. Consider installing one at the entrance to keep the area moisture- and heat-free.

Be Wary of Roof Snow

Are you currently experiencing cold weather in Calgary? If yes, check the roof of your home for snow build-up. When more snow packs up tightly on the attic roof, it will melt when temperatures spike, causing it to leak through the ceiling. You shouldn’t wait until the summer to remove the snow; contact a specialist if you need help.

Turn Down the Humidifier

Managing the internal humidity of your home is an excellent answer for how to fix attic condensation. During the winter, you’ll want to maintain a warm and comfortable environment, but be sure to keep the house warm enough to avoid adding more moisture.

The ideal interior humidity of a home is around 30% – 50%. Some may set it to about 20% – 25% in the winter.

Also, it is helpful to anticipate the incoming weather according to forecasts to prepare for cold snaps, allowing you to turn down the humidifier and reduce attic condensation.

Why You Should Deal with Attic Condensation Early

Attic Storage

While it is true that moisture buildup is a normal occurrence and that ventilation systems can handle it most of the time, you can never be certain how long it will take before it begins to damage your home.

Moisture will hasten the wear of your attic by rotting wooden components, such as the walls, deck, and rafters. Too much condensation will also promote mould and mildew growth, spike humidity levels, and bring a slew of health problems to inhabitants.

Plus, a home prone to attic condensation Edmonton will not be a good sign to buyers when they conduct an accurate home inspection. Not only will the property’s value fall, but you will also have a hard time selling it on the market.

Keep Your Attic Condensation-Free with Expert Help

Attic moisture buildup is a pain to manage, but with the assistance of attic condensation specialists, you can soon enjoy a cosier and safer roof space. Rehabilitating an attic starts with the right care. To transform your attic from an old storage unit to a liveable space, contact Attic Plus – Sydney’s leading attic and conversion company.


Does Insurance cover Attic Moisture Damage?

Many concerned property owners always ask if attic condensation is covered by insurance. As much as we hope we can assure you that you can reduce attic repair costs, most insurance providers do not include attic condensation in their coverage because it is difficult to pinpoint if the damage is pre-existing.

How Can I Tell if It’s a Roof Leak or Attic Condensation?

Stains in a single location highly indicate a leak. However, if the stains are spread across multiple areas, you might be facing attic condensation. Also, moisture buildup leaves evidence such as ice sheets and drip marks on insulation.

Will Upgrading Insulation Help with Attic Condensation?

Since attic dampness is a moisture issue, topping up your insulation will not fix attic condensation. You need to stop moisture from entering the roof space to avoid water damage.