What Causes Roof Condensation?

October 30, 2019

Condensation is usually an issue homeowners face during colder seasons. When the warm air in your home meets the colder temperature from the outside, it causes moisture. You may notice water droplets developing on your attic ceiling or below your roof. When there is nowhere for the moisture to escape, it shows up inside your home and can seep into your walls, roof assembly, or other areas of your home’s foundation.

Attic and roof condensation is also often caused by vents in your home that lead to nowhere. For example, maybe your kitchen and bathroom vents lead to your attic instead of outside your home. This brings excess moisture into your attic with nowhere escape.

Is Condensation Bad for Roofs?

When condensation is not a constant problem for your roof, it might not seem like a big deal. However, excess moisture is always a problem for roofs and homes. Excess moisture could seep into your walls or roof, causing structural or roof damage over time. Depending on other factors, such as whether or not you have proper ventilation in your home, condensation may also lead to mold or mildew in your attic or underneath your roof.

How to Prevent Roof Condensation

Proper ventilation: Airflow is the key factor in keeping your home rid of excess moisture. If you notice condensation in or around your roof, call a local roofer to inspect the affected area. They will advise you on the best way to properly ventilate those areas to prevent any roof damage.

Insulation: Insulation is what helps maintain the temperature in your home. Condensation builds up when extreme temperatures meet together; proper attic or roof insulation can greatly reduce condensation by keeping your home’s temperature at a level to minimize moisture.

Vapor barriers: You can install vapor barriers or retarders to your roof to combat severe condensation issues. They are often made of polyethylene and prevent water vapor from passing through. Talk to your local roofer about whether or not vapor barriers would be the right solution for your roof, as they are not the ideal solution for all regions or climates.

Dehumidifier: A dehumidifier can be used as a short-term solution for condensation issues. It may also be a more budget-friendly solution for homeowners who only experience roof condensation during certain months or seasons of the year. However, it’s not a permanent solution that can protect your home if you are experiencing a lot of condensation caused by other roof or ventilation issues.

Part of our mission at IBEX Roof is to help educate homeowners on how to properly take care of their roofs for home security and longevity. Whether it’s a simple roof cleaning, a repair, or even a replacement, we’re on top of it! Give us a call today at 360-218-3108 to get a free estimate on your next roofing project.

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