There are many kinds of black mold, but when most people refer to it, they're referring to Stachybotrys chartarum (S. chartarum). It grows and spreads on materials that contain a lot of cellulose, including paper products, wood products and drywall. Cellulose is a fiber in fruits, vegetables and other plants.
Bathrooms—black mold can grow in the shower, on the wall near plumbing hookups, on a window, inside a vanity with water damage and more. Basements—black mold in basements is one of the most common mold occurrences.
There are, however a number of surfaces where mold will not grow. Treated surfaces and drywall have been found to resist growth, even when wet. While it may seem like a good idea to have such surfaces everywhere, they are not 100% effective.
Black mold grows where there is water damage such as shown in the photo. It grows on a range of materials, including drywall, wood, paper, carpet, painted walls, and cardboard.
While mold cannot get nutrients from inorganic material such as concrete, glass and metal, it can grow on the dirt present on these surfaces. Molds prefer damp or wet material. Some molds can get moisture from the air when the air is very damp, that is when the relative humidity is above 80%.
Common black mold presents differently than toxic black mold. It's likely to appear in ordinary spaces, not just in water-damaged basements and humid attics. Non-toxic black mold also cleans more efficiently than toxic mold, and it doesn't possess the same musty, dirty smell that makes toxic mold so recognizable.
Mold's biggest weakness? Moving air. Mold thrives on moisture and stagnant conditions, but airflow is its natural enemy. By keeping air circulating in your home, you can prevent mold from taking hold.
Aureobasidium
This yeast-type fungus can be mistaken for another more sinister and dangerous mold but is far less likely to make you sick. Aureobasidium can start as a slimy pink color, but it will turn brown or black and can look like black mold.
It irritates the nose and throat, which can lead to both sneezing and coughing as your body tries to get rid of the irritant. Inhaling mold spores can also trigger coughing in people with allergies or an asthma attack, for those with asthma.
For a natural solution to getting rid of black mold, combine one part baking soda with five parts distilled white vinegar and five parts water in a spray bottle. Alternatively, you can use a chemical-based mold and mildew remover, all-purpose cleaners, bleach or dish soap.
Hydrogen peroxide, commonly used to disinfect wounds, is active against a wide variety of micro-organisms including mold. It acts by releasing oxygen at a rapid rate, which kills mold by oxidizing the surface and breaking down proteins and DNA.
Mold-resistant drywall, also known as green board or purple board, is specially designed to inhibit mold growth. It contains fiberglass facing that offers enhanced protection against moisture, making it an ideal choice for areas prone to high humidity such as bathrooms, kitchens, and basements.
Mold thrives in warm, humid conditions, making weather a significant factor. During mold season, which spans from early spring to mid-fall, the combination of higher temperatures and increased moisture in the air creates an ideal environment for mold spores to germinate and spread.
Although the name implies a uniform coloring, black mold may appear black, dark green, or dark brown. It typically grows as a cluster of round spots with a distinctly wet, slimy appearance. As stated, black mold typically appears fuzzy or furry.
Dark Colored Spots On Your Walls
A key indication of mold growth is discovering discoloration on your walls. In many cases, this change of color first comes when the walls are wet. However, as mold grows, the size of the colony may lead to it being seen as a color change on walls.
If you're allergic to black mold, you may have symptoms immediately after spores come in contact with your body. If you're not allergic to black mold, you may not have any symptoms, or your symptoms may not appear for a long time.
Removing mold from inside walls is a four-step process: removing moldy drywall and other materials; killing mold; encapsulating remaining mold; and rebuilding part or all of the wall with new drywall, insulation, and other building materials. Removal/Disposal: Moldy drywall and insulation must be removed.
Homeowners insurance doesn't usually cover mold damage or removal unless it's the result of a covered peril. If the mold in your residence was caused by something sudden or accidental, such as a bursting pipe or some other covered incident on your policy, you may be protected.
If you go the DIY route while testing for black mold, you will need to purchase a mold testing kit from a hardware or home repair store, take samples of the air and affected areas yourself, and then send these in to a testing facility, which will report back as to which type of mold is present.
Black mold generally appears black or dark green in color and may have a fuzzy-like texture. It can grow on virtually any type of surface, including wood, drywall, insulation, grout, carpeting, fabric and other common materials found in the home or office.
Some experts say that the smell of black mold is close to that of dirt and rotting leaves. Black mold odor comes from MCOCs (Microbial Volatile Organic Compounds), which is the off-gassing of molds as they feed and reproduce.
Mold hates light. Other than moisture there's nothing mold loves more than dark places. An easy prevention against mold growth is opening your blinds and shades. If it's warm enough out, open the windows.
Hydrogen peroxide kills mold effectively on materials such as clothing, floors, bathroom fixtures, walls and items such as kitchen appliances. Pour 3% concentration hydrogen peroxide into a spray bottle. Spray the moldy surface completely to saturate the area with hydrogen peroxide.