Black Mold Removal

All types of indoor mold growth are bad, but some are more hazardous. Learn more about black mold and the conditions in which it can grow.

Toxic Black Mold Removal in Nashville

First, a better understanding. Not all black mold is the black mold. Typically, the toxic black mold that most people are referring to is Stachybotrys Chartarum, but many types of mold can appear black or dark brown, dark gray, dark blue or dark red. In addition to the species, the color of mold is determined by its food, age, and the environment. 

The black mold Stachybotrys requires specific conditions to grow and has defining characteristics that can help identify it from other types of mold. The good news is that this type of mold is quite rare, but if you do have mold growth, you may want to learn more about black mold.

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What Makes Mold Toxic?

Technically, no mold is toxic, however, some molds produce mycotoxins. They are considered metabolites of mold. Some mycotoxins are more poisonous than others, but prolonged exposure to lower toxicity can be just as unhealthy as a shorter exposure to high toxicity level.

Molds will produce more mycotoxins when threatened by diminishing food, water, or other species of mold as a kind of germ warfare.

The three ways you can be affected by mycotoxins are breathing, eating, and through the skin. While people with low immune systems are more likely to be affected by mold’s allergenic properties, all people, regardless of their level of health, will be affected by mycotoxins. The degree to which people are affected depends on the level of toxicity of the mycotoxin, the length of exposure, and the concentration of the exposure. Mycotoxicosis symptoms can include anything from skin rashes to organ and brain disease to possible death.

Should I Worry About Black Mold?

Now that you are scared out of your wits, let me put this in perspective. Exposure to mycotoxins is pretty rare. With improved handling and storage of grains and legumes, aflatoxin exposure has greatly diminished. Aw, (water activity) necessary to grow to grow Stachybotrys is .94-.98, meaning a cellulosic material (wood, drywall, fabric, etc) has to get and stay saturated for a prolonged period of time. Meaning there has to be a continuous leak in a cavity or behind a vapor barrier with no air flow with an abundance of food for a very long time. So, it’s rare, but it can happen.

What Does Black Mold Look Like?

Usually, Stachybotrys will be hidden and you will never see it until you remove whatever is concealing it. It will be slimy with a pungent odor, instead of fluffy or furry with just a musty odor. Testing from a qualified professional is the best way to identify contamination. Be aware that Stachybotrys spores are big, wet, and heavy, so they are unlikely to show up in an air sample. Many times suspect areas will have to be uncovered to reveal active growth. Always contain the suspect area before any exploratory efforts to prevent cross contamination.

How To Remove Black Mold

Removal of any mold, especially when it is potentially toxigenic, should be done under controlled conditions by qualified professionals:
  • Containment (plastic walls) should be installed in the work area.
  • The contained area should be put under negative air pressure by exhausting to the outside through HEPA filtered fans.
  • Anyone entering or working in the area should wear proper personal protective equipment (PPE).
  • Any contaminated material removed from the containment should be bagged to prevent cross contamination.
  • The remaining structural surfaces should be HEPA vacuumed and treated with an antimicrobial solution.
  • The negatively pressurized containment should remain intact until a 3rd party inspector conducts a post remediation verification (PRV) as recommended in the S520 Standard and Guideline for Mold Remediation.

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What People Are Saying About Us

Derrick Miller

TOP notch folks. Called and got an immediate response. I called them in a hurry and they showed up the next morning to do a mold test. Very helpful and professional and I will use them again!!!

Rosaline Sweat

I had nothing but a wonderful experience with Tier. They were on time,very friendly and knew exactly what they were doing. I had a spot that I'd had for 4 year on my carpet and figured I would have to replace that carpet but they got it out after a couple of tries. I was truly amazed. Alex, the manager, I'd worked with before and I can't say enough good things about him. He's always there when you need him with a solution for whatever your problem is. He has a very positive attitude and is great to be around. All in all my experience was fantastic!

Josh Morris

I honestly believe you won't find a better company to work on your home than TIER. Alex has always given me more than fair estimates and exceeded all my expectations with the final product.

Most recently, TIER installed an interior french drain in my house. Alex came out to my house through all stages of the project. He even did a final walk through and decided that he was not satisfied yet and told me he would send his guys out to bring it to his standards. I can't stress how rare this is.

Until working with Alex and TIER, I had not found a company in Nashville that I trusted. They are the only company in Nashville I would feel comfortable recommending to a friend.

Melinda Hickey

Greg Lewis Tier Restoration is committed to doing the best work. The company's slogan, “Experience The Next Level” really describes Greg's work ethic as a professional in his field. He is a great resource for folks who need help with their homes. Greg and his team are folks to be trusted!

Monte Mohr

I've been selling homes for over 30 years and have owned rental properties for over 10 years. Tier Restoration is by far the best company of its kind I have ever used. As a real estate Broker selling hundreds of homes a year it is empowering to have a company as competent and professional as Greg Lewis and his crews. As a landlord I have personally used them twice in the past 12 months on major situations. The kind of challenges that would cause many to lose sleep over. In both cases Alex took my fear and concerns I was facing and extinguished them all by his consistent timely communication and professional awareness throughout the process to completion.
From simple duct cleaning to major foundation and crawl space repair and remediation there is only 1 company that I call. They are simply the best!

The Evans Family

The Tier group were amazing!! From the moment they walked in my front door, I knew we were going to be in good hands. The work was professionally done, and the communication was outstanding. Don't waste your time looking at other restoration companies, choose Tier and have that peace of mind that we had!!

Tracy Snow

Alex and his team are amazing to work with. Everyone is courteous, on time, and thorough in their work. Alex stops by to personally check on his crew and talk with the homeowner. I highly recommend Tier Restoration and will certainly use them again and again.