Mold Prevention After Flood Damage

Unfortunately, when your residential or commercial structure went through the flooding experience, there are a lot of consequential problems that follow contaminated water invasion into your property.

Since this page covers mold prevention, let’s assume that water and contaminated porous materials have been removed within 24 to 48 hours (that includes materials such as drywall and insulation up to and 2 feet above contact with the flood waters) and for some reason, you decided to not call certified water damage restoration firm.

First, let us remind you again that flood waters are dangerous and caution is required when dealing with post-flood situations. If your home or business has been flooded, sewage contamination may have occurred. We urge you to consult professional, but realize that in an emergency situation it is not always immediately possible.

Therefore, to prevent Mold After Flood Damage, you will need to make sure that all three requirements are met: (1) dry the air (we’ll explain in a minute), (2) dry the materials, and (3) disinfect or toss.

Dry the Air

Since we rent drying equipment, we came to an understanding that homeowners usually do not realize that a Dehumidifier in almost every case is not enough to dry an area. Here is why; simply put, dehumidifier does a good job pulling the moisture out of the air. And, one of the vital steps to mold prevention is reducing humidity level, but dehumidifier doesn’t do enough for air circulation.

Speaking about humidity; there are many do-it-yourself sites that recommend keeping Relative Humidity at 50% or below. If you don’t know what it is, please Google it; if are too confused with the explanation and formula, call Flood Atlanta, LLC. Even if you are simply renting our drying equipment, we can (at an additional fee) take drying readings for you and make sure that the drying process with the rented equipment is going smoothly. Also, you can buy simple humidity meters at Lowe’s and Home Depot for about $30.00.

Dry the Materials

If you insist on doing it yourself, please make sure your windows and doors are open if the weather permits and remember to consult our Dos and Don’ts page.

Use Air Blowers or Fans to help you dry the area through air circulation. Place them to blow the air outwords (like at a window). Run the HVAC to increase temperature and improve air circulation and bathroom fan to speed drying, but ONLY if it has been inspected and cleaned or of the professional notified you that it is not contaminated. Again, remember that this page is about Mold PREVENTION, and not Mold Remediation.


This includes EVERYTHING. You must have the HVAC inspected BEFORE running it. Even if it has not been affected, change your filters. Wear protective gear such as specials glasses and non-porous gloves. On hard surfaces use commercial products, soap and water, or a bleach solution of no more than 1 cup of bleach in 1 gallon of water. Use a stiff brush on rough surface materials such as concrete. Do NOT mix bleach with other cleaning products. Throw away anything and everything that can not be disinfected and has been contaminated by flood waters for a period longer than 24 hours!

Disinfecting includes not only materials, but also air! Protect yourself and your family and use air purifier (or rent an Airscrubber from Flood Atlanta, LLC).

Visit EPA’s website and read “A Brief Guide to Mold, Moisture, and Your Home”. Here is a link:

Remember, if you SEE MOLD (discoloration of walls and ceilings, etc.) and SMELL MOLD (musty and earthy), you HAVE MOLD.

If MOLDY area is less than 10 square feet, you can try to clean it yourself (and we will be creating a page of recommendations), but if it is larger, call the professional Mold Remediation Specialist (or Flood Atlanta, LLC) or refer to the EPA Guidelines.

If MOLDY area is less than 10 square feet, you can try to clean it yourself (and we will be creating a page of recommendations for that as well), but if it is larger, call the Professional Mold Remediation Specialist, or ask Flood Atlanta for help; our staff will be happy to assist you with any Water Damage and Post Water Damage Situations in Atlanta, Decatur, Duluth GA, Alpharetta, Sandy Springs, Buford, Dunwoody, Marietta, and other cities around Atlanta. Call us at 678-919-9096 for your Mold Prevention and Water Damage Projects.