Basements often have a reputation for smelling musty, but they don’t have to. To avoid that unfortunate smell, it’s important to understand what causes it and how to fix it.
What Causes Musty Basement Odor
The root cause of a musty basement is moisture. Any amount of water, whether it’s a tiny damp patch or a full-on flood, sets the stage for mold and mildew growth.
Mold and mildew are types of fungi—living organisms that feed on organic matter, including materials like wood, drywall, cardboard, carpet, and more. As mold and mildew spores break down these food sources, they release gases that cause a musty smell.
I Don’t See Water—Why Is My Basement Musty?
Mold and mildew can be insidious, growing in hidden areas or underneath surfaces. Why does this happen? Because water can also enter your basement unseen, creating prime conditions for mold and mildew to grow out of view.
Foundation Issues
Foundation problems often cause excess moisture in your basement. Even small foundation cracks can create a pathway for water to enter your basement. While these leaks may not cause visible pooling or flooding, they still cause dampness that allows mold and mildew to thrive.
Vapor Transmission
The term “vapor transmission” refers to how water vapor travels from the surrounding soil through concrete foundations and into a basement interior. Typically, this happens due to pressure and temperature differences between the inside and outside environments.
When the surrounding soil is warmer and wetter than your basement (typically in spring and summer), the pressure outside your basement becomes greater than the pressure inside. In this situation, the high-pressure environment outside pushes water vapor through the porous concrete foundation and into the basement.
Again, you may not see any water when this occurs, but that doesn’t mean it’s not there. Extra moisture can collect in the concrete foundation and soak into flooring, walls, and other porous materials.
Excess Humidity
Humidity refers to the amount of moisture in the air. The air in your basement can often have a higher level of humidity than other areas of your home for many reasons, including:
- Living in a high-humidity region
- Poor ventilation and air circulation
- Absence of climate control
- Inadequate insulation
- Hidden leaks or water seepage
If the air in your basement feels damp, if you see condensation, or if you notice any discoloration or peeling on walls, ceilings, or floors, you may have a humidity problem. You can install a dehumidifier to help mitigate high basement humidity, but it’s still important to find and fix leaks or ventilation-related problems as soon as possible.
Working With a Pro to Fix a Musty Basement
It’s rare to have only one source of excess moisture in your basement. Most often, several factors contribute to the overall problem.
While you may be able to address some aspects of a wet basement and mold or mildew growth on your own, it’s unlikely you’ll be able to handle the whole problem. With so many elements in play, it’s best to call a professional basement waterproofing contractor if you:
- Smell a musty odor
- See mold or mildew growth
- Feel excess humidity
- See condensation or water
A basement waterproofing expert can assess the situation, identify the sources of any excess moisture, and formulate a comprehensive solution to address current damage and prevent it from happening again. Tackling the problem from all sides gives you the best chance of a long-term fix rather than a temporary band-aid.
For expert basement waterproofing solutions in Rochester and the surrounding area, call BelowDry Basement Waterproofing today. Our family-owned company has over 15 years of experience helping local home and business owners get ahead of wet basement issues so they can enjoy a safe, healthy, and pleasant indoor environment. When you work with BelowDry Basement Waterproofing, you can expect exceptional customer care, prompt service, and comprehensive waterproofing solutions that actually fix the issue. BelowDry Basement Waterproofing—solving your wet basement problem for good!