Identifying Mold Growth on Walls After Flooding

 
Immediate Steps to Address Mold on Drywall
 

• First, protect yourself by wearing an N95 mask, gloves, and safety goggles. This prevents inhalation of mold spores and contact with irritants.
• Next, isolate the area by closing doors and windows to prevent mold spores from spreading throughout the home.
• If you see any water or moisture source, immediately turn off the supplies if possible, such as shutting off water or checking roof leaks. Notice if plumbing issues are present—this may require a plumber's help.
• Ensure that the area is well-ventilated by opening windows and using fans to help dry out the space.
• Do not disturb the mold more than necessary. The less it spreads, the better for your health and the cleanup.

 
Tools and Materials Needed
 

• N95 mask, gloves, and safety goggles
• Plastic sheeting to seal off the affected area
• Cleaning solution (a mix of water and vinegar or a commercial mold remover)
• Spray bottle and scrub brushes
• Utility knife and/or drywall saw for removing affected drywall
• Bucket of clean water and rags for cleaning up
• Dehumidifier or fan to help dry the area
• Sealant or mold-resistant primer/paint for repairs

 
Evaluating Home Repair vs. Calling a Professional
 

• If the mold is covering a small area (less than 10 square feet) and there’s no persistent moisture problem, a careful DIY cleanup can be attempted by a knowledgeable homeowner.
• If the mold is extensive, recurring, or there is a significant water issue, it is best to call a professional who specializes in mold remediation.
• If moisture is coming from a plumbing leak or roof damage, a licensed plumber or roofing expert should be contacted before mold remediation begins.
• For large commercial buildings or persistent issues, consider a full-service restoration provider such as St. Louis or Nashville experts.

 
Step-by-Step Process for Cleaning Mold on Drywall
 

• Contain the area. Use plastic sheeting to cover adjacent spaces and seal off air ducts if possible.
• Dry the area. Use fans or dehumidifiers to eliminate moisture, as moisture control is key to stopping mold growth.
• If the drywall is extensively moldy, cut out the affected section using a utility knife or drywall saw. Ensure the cut extends a little beyond the visible mold to remove hidden contamination.
• Apply the cleaning solution using a spray bottle. Let it sit for several minutes to break down the mold.
• Scrub with a soft-bristled brush gently. Avoid aggressive scrubbing which can release spores into the air.
• Wipe the area with clean, damp rags and allow it to fully dry.
• After the area is clean and dry, use a mold-resistant primer/paint or reseal the area to prevent future growth.

 
Safety and Insurance Tips
 

• Always wear protective gear. Inhaling or coming into contact with mold spores can be hazardous if proper precautions are not taken.
• Keep the work area well-ventilated to reduce the concentration of airborne spores. Open windows and use a fan if weather permits.
• Dispose of any contaminated materials (e.g., damaged drywall pieces, cleaning rags) in sealed plastic bags to prevent spread.
• If your home has insurance, check your policy regarding mold damage. Some policies may cover remediation if the mold is caused by a covered peril like a burst pipe, while others may not cover gradual buildup.
• It’s a good idea to document the mold damage with photos for insurance claims and consult an expert if you’re unsure of the extent of damage.

 
Additional Considerations
 

• Identify the source of the moisture and stop it. Without controlling moisture, mold is likely to return.
• If the mold returns after cleaning, it may indicate hidden damage or persistent moisture issues that require a thorough inspection by a professional.
• Consider a professional mold inspection if you are concerned about your health, particularly if there are older individuals, children, or people with respiratory problems in the home.