Mold Prevention Tips for Flood Survivors in Western North Carolina

Hurricane Helene has caused significant damage to many of our Western North Carolina homes and properties. As we begin the recovery process, it’s crucial to address the issue of mold, which can start to grow within just 24-48 hours in wet buildings. The damp building materials can act as “food” for mold, many of which are toxigenic and can thrive in such conditions. In addition to mold, harmful bacteria can proliferate, creating a complex indoor environment filled with microorganisms, toxins, and volatile organic compounds (VOCs).

Taking immediate action can save you thousands of dollars in repairs and help protect the health of you and your loved ones.

A Toxic Soup

When molds and bacteria condense in your home, they can pose serious health risks, particularly for those in high-risk groups such as children, the elderly, or individuals with respiratory conditions. By taking the necessary steps to prevent structural mold growth, you can protect both your home and the health of your family.

Where to Start?

To minimize structural mold damage and health risks, it’s imperative for all flood-affected residents to be proactive. Here are 10 essential steps to follow:

1. Remove Standing Water: Use a pump or a wet vacuum to eliminate any standing water. If you don’t have access to these, a bucket and sponge can still do the job.
2. Turn Off Water Sources: If the water came from a broken pipe, turn off the water supply immediately. If rainwater has overflowed your gutters, clean and adjust them. Check for clogged drains and inspect your roof and windows for leaks. Take preventive measures to stop future flooding.
3. Clear Out Wet Items: Remove wet carpets, rugs, draperies, cardboard boxes, and any personal belongings. Clear away mud and debris from floors and walls to help the subflooring and foundation dry out.
4. Discard Damaged Materials: Remove water-saturated wall paneling, baseboards, sheetrock, and insulation up to 18 inches above the highest water mark. Don’t forget to check flexible ductwork and insulation around metal ducts.
5. Address Mold on Remaining Materials: Remove any visible mold from structural materials using mechanical means or by completely discarding the affected items. This includes furniture, sports equipment, and anything that has become damp or moldy.
6. Clean Surfaces: Start by removing heavy mold deposits with tools and supplies you have on hand. You can use a commercial wet/dry HEPA vacuum, damp cloths, or even scrub if necessary. If the mold is extensive, consider consulting a professional.
7. Use Cleansers and Preventatives: After removing the bulk of the mold, apply a cleansing solution. Options include dish soap, hydrogen peroxide, vinegar, or commercial products like Concrobium. Use disinfectants on areas contaminated by floodwaters.
8. Dry Out Your Home Quickly: Mold can form within 24-48 hours, so speed is key. Turn up the heat, circulate air with fans, and use dehumidifiers to keep humidity below 50%. If you lack electricity, open windows and doors to facilitate drying.
9. Monitor Humidity: Use a hygrometer to check the humidity levels. Hot, dry air will help materials dry faster than cold, moist air. Be cautious of weather conditions; consult with a local environmentalist about dew points to maximize ventilation.
10. Don’t Seal Until Dry: Only begin repairs like siding, sheetrock, and flooring after confirming that all materials are completely dry. Use a moisture meter to check the moisture content in your building materials.

By following these steps, you can significantly reduce the risk of mold and protect your health and property during this challenging time. Take care of yourselves, and know that your community is here to support you.