Q&A for How to Troubleshoot Mold on Interior Walls

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  • Question
    Why does mold grow on interior walls?
    Victor Belavus
    Victor Belavus
    Air Conditioning Specialist
    Victor Belavus is an Air Conditioning Specialist and the Owner of 212 HVAC, an air condition repair and installation company based in Brooklyn, New York. In addition to HVAC and air conditioning units, Victor also specializes in furnace repair and air duct cleaning. He has over 10 years of experience working with HVAC systems.
    Victor Belavus
    Air Conditioning Specialist
    Expert Answer
    Mold thrives in humid environments, so it's likely that there's too much humidity in your home. Clean and remove the mold, then set up a dehumidifier in the moldy room. This should help keep the mold at bay in the future.
  • Question
    How do you treat mold on drywall?
    Mike Kapur
    Mike Kapur
    Certified Mold Assessor & Home Inspector, Sonic Home Inspections
    Mike Kapur is a home inspector and the owner of Sonic Home Inspections, a home inspection company in Westchester, New York. With over 15 years of experience in pre-inspecting properties, Mike specializes in mold, radon, asbestos, lead, water, and air quality testing as well as hazardous materials, pest, infrared, and general home inspections. Prior to founding Sonic Home Inspections, Mike worked pre-inspecting apartments. Mike holds a BS in Accounting from Queens College and is a Certified Mold Assessor in the state of New York.
    Mike Kapur
    Certified Mold Assessor & Home Inspector, Sonic Home Inspections
    Expert Answer
    Unfortunately, there's no way to ensure all the mold is fully removed from drywall, so we recommend you cut the piece away along with a margin of 5 or 6 inches and put in a new drywall sheet.
  • Question
    How do you stop mold growing on walls?
    Mike Kapur
    Mike Kapur
    Certified Mold Assessor & Home Inspector, Sonic Home Inspections
    Mike Kapur is a home inspector and the owner of Sonic Home Inspections, a home inspection company in Westchester, New York. With over 15 years of experience in pre-inspecting properties, Mike specializes in mold, radon, asbestos, lead, water, and air quality testing as well as hazardous materials, pest, infrared, and general home inspections. Prior to founding Sonic Home Inspections, Mike worked pre-inspecting apartments. Mike holds a BS in Accounting from Queens College and is a Certified Mold Assessor in the state of New York.
    Mike Kapur
    Certified Mold Assessor & Home Inspector, Sonic Home Inspections
    Expert Answer
    After you clean the mold, paint the wall with an antimicrobial paint to help prevent the mold from returning.
  • Question
    How can I reduce moisture in my house?
    Mike Kapur
    Mike Kapur
    Certified Mold Assessor & Home Inspector, Sonic Home Inspections
    Mike Kapur is a home inspector and the owner of Sonic Home Inspections, a home inspection company in Westchester, New York. With over 15 years of experience in pre-inspecting properties, Mike specializes in mold, radon, asbestos, lead, water, and air quality testing as well as hazardous materials, pest, infrared, and general home inspections. Prior to founding Sonic Home Inspections, Mike worked pre-inspecting apartments. Mike holds a BS in Accounting from Queens College and is a Certified Mold Assessor in the state of New York.
    Mike Kapur
    Certified Mold Assessor & Home Inspector, Sonic Home Inspections
    Expert Answer
    Running a humidifier in your home can help reduce moisture. Additionally, dry up any water that gets in your home after a storm. You might use a wetvac if you have large puddles. Remove or dry any textiles, such as towels or blankets that get wet.
  • Question
    Can I treat mold with bleach on the outside of my walls?
    Donagan
    Donagan
    Top Answerer
    Yes, bleach will remove mold anywhere.
  • Question
    Will mold affect health?
    Donagan
    Donagan
    Top Answerer
    It can. Breathing in mold spores can cause respiratory problems, especially for those allergic to them.
  • Question
    Can I use bleach on mold to kill it? Should I dilute it?
    Community Answer
    Community Answer
    Bleach kills mold. Dilute 1.5 cups of bleach in a gallon of water. Wear gloves and goggles.
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