24/7 Emergency Service
Why Mold is Still a Threat in Cold Weather: Minneapolis Myths and Facts
11/20/2024 (Permalink)
When winter settles over Minneapolis, many homeowners feel a sense of relief thinking mold is a problem they can ignore until spring. However, this assumption can lead to mold growth and damage that’s costly and potentially harmful to health. The truth is that while outdoor temperatures may plunge, mold can still thrive indoors in winter. In this blog, we’ll address some common misconceptions about mold in winter and why staying vigilant is essential to keeping your home mold-free.
Myth 1: Mold Can’t Grow When It’s Cold
Fact: Mold can grow year-round if the right conditions are present, even during Minnesota’s frigid winters.
Many believe that mold growth requires warmth, and while it’s true that certain temperatures accelerate mold, it doesn’t mean mold growth stops when it’s cold. When it’s winter, most of us crank up the heat indoors, creating an ideal environment for mold to thrive. Heated indoor spaces, combined with high humidity and condensation from sealed windows, provide the moisture that mold spores need to grow. So even if it’s freezing outside, the inside of your home could still be vulnerable to mold.
Myth 2: Mold Is Only a Summer Problem Due to Humidity
Fact: Indoor humidity and condensation in winter are major contributors to mold growth.
While Minneapolis summers bring higher outdoor humidity, the cold, dry air of winter can still lead to moisture issues indoors. When warm, humid indoor air meets cold surfaces—such as windows, walls, or poorly insulated areas—condensation forms. This condensation creates damp surfaces where mold spores can settle and grow. Activities like cooking, showering, and drying clothes indoors also add moisture to the air, raising the potential for mold growth even in winter.
Myth 3: Mold Only Grows in Damp Basements and Bathrooms
Fact: Winter conditions can cause mold growth in less obvious places throughout your home.
In winter, mold can grow in unexpected areas, such as around windows, under carpets, behind wallpaper, or near heating vents. Condensation buildup around windows and exterior walls is particularly common in winter, and can lead to mold issues that go unnoticed for months. Additionally, rooms that are closed off to save energy or storage spaces that don’t receive much heat can become damp from temperature fluctuations, creating an ideal mold environment.
Myth 4: Running the Heat Keeps Mold Away
Fact: Heating alone won’t stop mold—it may even contribute to its growth.
When we keep our homes warm during winter, we reduce the natural air circulation we might have in warmer months. This leads to moisture from everyday activities being trapped indoors. Without adequate ventilation, moisture has nowhere to escape, causing humidity levels to rise. Using a dehumidifier, ventilating regularly, and maintaining your home’s heating system are essential for keeping moisture levels in check.
How to Prevent Mold Growth During Winter
Now that we’ve debunked these winter mold myths, here are some proactive steps to protect your Minneapolis home:
Control Humidity Levels: Use dehumidifiers in high-moisture areas like basements, bathrooms, and kitchens. Aim to keep indoor humidity levels between 30-50% during winter.
Ventilate When Possible: Proper ventilation is key to reducing indoor moisture. Use exhaust fans in bathrooms and kitchens and consider crack-opening windows briefly for airflow on milder winter days.
Insulate Windows and Doors: Insulate or seal drafty windows and doors to prevent cold air from creating condensation on warmer surfaces. Consider double-glazed windows if possible for better insulation.
Watch for Condensation: Wipe away condensation on windows or other surfaces daily to prevent mold-friendly moisture buildup.
Address Any Leaks or Water Intrusion Quickly: Fix roof leaks, ice dams, or any plumbing issues promptly to prevent water damage that can lead to mold growth.
Keep an Eye on Basements and Crawl Spaces: These areas often have higher moisture levels and should be monitored regularly. If you spot mold, don’t wait—call a professional for help.
SERVPRO® Can Help!
If you’re dealing with mold concerns this winter, SERVPRO of Northeast Minneapolis is here to help. We specialize in mold remediation and prevention services, using advanced techniques and equipment to safely remove mold and address moisture issues. Don’t wait until spring to address a potential mold problem—contact us today to schedule an inspection and keep your home safe, comfortable, and mold-free all winter long.