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Finding mold in your basement can be very distressing to say the least. Is it dangerous? How did it get there? How can it be removed? Do I need to bring in a professional to do the work? How do I keep it from coming back? These are the questions that immediately come to mind when you discover mold growing in your basement.
We want to help answer some of your questions here and have included links in the article for additional in-depth information on specific aspects of this concerning issue. Gaining some knowledge about mold is critical to making good decisions for you and your family when it comes to dealing with mold in your basement.
The first and most important thing to know is that mold most commonly affects people’s health through the inhalation of the spores. Even if the mold you see is limited to your basement, the spores from that “colony” can move throughout your entire house and stay airborne for a very long time. Even if you don’t smell a “moldy” odor upstairs, heavy concentrations of mold spores can be floating in the air your breathing right now.
Mold is everywhere in nature, it is vital to the ecosystem and plays an important role in the breaking down plants into soil. The outdoors is a big place, and mold has plenty of room to blow around, disperse, and dilute in all that space. The problem starts when it becomes concentrated in an enclosed space, like your basement. Many mold spores contain “mycotoxins”, small amounts of toxic compounds that help them survive in nature. It’s these mycotoxins that create the health effects people suffer when exposed to elevated levels of mold spores in the air.
It goes without saying that reducing your exposure to mold spores in your home reduces your inhalation of spores containing mycotoxins. If you attempt a do-it-yourself cleanup of mold in your basement, it should be done with precautions in place to lessen the spread of the spores that will become airborne during the cleanup. Several agencies and organizations such as the Environmental Protection Agency (EPA) say that an amount of visible mold greater than 3 ft by 3 ft on a surface is large enough of a concern to be left to the professionals to clean.
It’s important to understand that finding mold in your basement is a consequence of some type of water damage to that area. The water damage may be from liquid water, or from extended periods of high humidity (water vapor). The water caused conditions in your basement to be favorable to mold growth. Mold needs four things to survive and grow:
You can’t control most of these factors, the one you can, is the water. Finding out and repairing what is causing the water to exist in the space is essential to prevent a quick reoccurrence of the mold issue you are dealing with today. Sometimes it’s a simple pipe leak, a hot water heater leak, or flood that caused the mold to grow. Other times it may be from your gutters not functioning properly or foundation leaking issues that are letting in water. Regardless, determining the underlying cause and correcting that is as important as removing the mold itself.
Inspection is important in determining the extent of the mold growth in your basement. Check areas behind and under stored items, as well as above your head for growth on beams and subfloors. Don’t focus solely on “black mold”, mold forms in many colors and often the types containing the highest amounts of toxins are colors other than black. If you can’t see mold, but have a heavy musty odor, that may be indicating the mold is growing inside your air ducts, behind your drywall or paneling, or under carpeting. Having a Mold Professional perform a free home mold consultation can help you determine the extent of the problem. (More on that below)
If you want to do a DIY cleanup of the mold you see, follow some basic principles so you don’t end up making things worse. Typically, the cleanup process increases the number of spores that are released into the air by disturbing the mold growth colony. That’s why professionals are trained in techniques to seal work areas and use high powered air filtration units when they do a cleanup job.
Consider your health, physical condition, other occupants of the home, the neighbors, and the amount of mold you think you have before deciding to tackle it on your own.
Hiring an Indoor Environmental Consultant can be a very important to understanding the source and extent of the mold problem in your basement. These professionals can investigate and perform testing of areas in the home to give you a clear picture of what’s going on with the mold you can’t see (inside walls, inside ducts, in your air) and recommend how best to proceed. They can perform “post” testing to determine if the cleanup activities successfully reduced the amount of mold spores in your air. This link from New York State provides information about what to expect from these professionals: NYS Mold Program.
Many professional mold remediation specialists in your area will schedule an in-home consultation with you at no charge to evaluate your project and offer options for cleanup and prevention. Even if you choose to perform the work yourself, a pro can offer valuable guidance and suggestions on how to safely clean up the mold. Follow this link to find experienced mold removal professionals offering free consultations in your area.
When dealing with a mold problem in your basement, start by staying safe, then getting some professional advice.
Waterproofing a Basement - Comparison of interior and exterior basement waterproofing options, determining the best solution for your issue.
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EPA.GOV - Mold cleanup in your home
IICRC S500, Standard and Reference Guide for Professional Water Damage Restoration, Third Edition, Vancouver, Washington 2016
IICRC S520, Standard and Reference Guide for Professional Mold Remediation, First Edition, Vancouver, Washington 2016
EPA, 402-K-01-001 Mold Remediation in Schools and Commercial Buildings, Washington D.C., 2008
NY State Article 32, Licensing of Mold Inspection, Assessment and Remediation Specialists and Minimum Work Standards, 2-5-2015
Written by Joe Battisto.
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