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Reasons Why Mold Forms in a House

Posted on February 28th, 2020

Along with being unsightly, mold can actually cause a multitude of adverse health effects such as a stuffy nose, sore throat, coughing, burning eyes, or skin rash. In people with asthma and allergies, these reactions can become more severe. 

If you stumble upon mold in your home, there are a few possible reasons why it’s there in the first place. Here’s what you should know to help prevent the growth of mold in your home. 

Energy Sources

Mole is a living microorganism, which means it needs fuel to live, reproduce, and spread. Inside your home, there are many organic materials that mold can feed off of to continue thriving. From carpets, to clothing, to the insulation behind your walls—mold can eat at these surfaces. This is especially true in warm, dark, and damp areas of your home. 

Lack of Sunlight

Sunlight has natural antifungal properties that are able to break down mold at a cellular level. Because of this, you will find that mold grows and thrives in dark places out of the sun’s reach—making indoor mold common in places like attics, basements, and even behind walls. 

While mold prefers darkness and even areas completely void of light, they can also thrive indoors where artificial light is used like in your fridge, laundry room, or bathrooms. 

Excessive Moisture

Mold primary thrives in the presence of water and moisture. When wet or damp conditions persist for long periods of time, mold will begin to grow. Mold usually begins in unseen places like attics, basements, and behind walls. If you are able to control excessive moisture, you will be able to effectively halt the spread of mold in your home. 

Common sources of water and moisture throughout your home include: 

  • Condensation on pipes, windows, and doors
  • Leaking pipes
  • Humidity during warmer months
  • Air conditioning units
  • Crack in your foundation
  • Faulty or no insulation
  • Poor ventilation in bathrooms
  • Standing water in sinks or tubs
  • Wet clothing, towels, or floor mats

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