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What is Attic Rain?

Is attic rain a problem in your home? This phenomenon occurs when moisture gets trapped in your attic. In the Alberta area, this moisture can freeze on the surfaces in your attic and then rapidly melt as the temperatures rise, leading to what’s known as attic rain. If you’ve noticed a leak in your attic even when it’s bright and sunny out, you may be experiencing attic rain in your home. In fact, attic rain isn’t caused by a leak in your roof at all. Instead, the moisture typically comes from inside the rest of your home.

What Causes Attic Rain?

Attic rain is a situation that can occur when two conditions are present: moisture is able to get into your attic, and moisture is unable to get out of your attic. Ironically, attic rain is more common in newer homes, where the attic has an airtight construction. In these situations, moisture from your home that rises into the attic has no way to escape, resulting in an accumulation of attic rain instead. When cooking on the stove or taking a steamy shower, the moisture from inside your home may rise and get trapped in the attic. Similarly, if you use a humidifier or have a lot of moisture in your home to begin with, it can eventually make its way up to your attic as well.

In many homes, moisture enters the attic and subsequently leaves the home before problems like attic rain can occur. In more airtight constructions, this moisture is unable to escape and simply accumulates instead. If your attic does not have sufficient ventilation, the moist air simply gets trapped. Once enough moisture gets trapped in there, your home is at risk for attic rain. As soon as the temperatures hit below freezing and then rapidly increase again, attic rain may occur in your home.

How Can I Prevent Attic Rain?

As you can probably imagine, attic rain is a serious problem. Any time moisture is stuck inside your home, it can lead to all sorts of damage. From deteriorating your attic deck to encouraging mold and mildew growth, moisture in the attic is never a good thing. Attic rain in particular is something you don’t want to experience in your home. However, now that you’re armed with the knowledge of how attic rain occurs, you can take steps to prevent this from happening. Whenever possible, turn on your vents in the kitchen or bathroom if you’re going to be creating a lot of steam. You should also ensure the relative humidity inside your home does not exceed 50%.

Another step you can take to prevent attic rain is to ensure there’s plenty of ventilation in your attic. Having a proper ventilation system in place will ensure moisture in your attic is able to escape, keeping your attic dry and safe. A roofing contractor will be able to inspect your roof and attic system to check for and set up any necessary ventilation.

What Do I Do if I Have Attic Rain in My Home?

If you’re already experiencing attic rain in your home or have noticed any moisture accumulating in your attic, don’t let the problem worsen. Turn to a reputable roofing contractor that can provide you with the repair services and ventilation upgrades you need to address and prevent attic rain in the future.

Homeowners throughout southern Alberta can turn to South Peak Roofing & Exteriors for their roofing and attic needs. If your Alberta home is experiencing attic rain or any related issues, you can rely on our roofing experts to provide you with the dedicated services you need to restore your home. To learn more, contact us today.