Although mold spores are not corrosive, they can cause extensive damage to your drywall. They can cause stains and rot which may have to be replaced if you want to completely get rid of the mold. Mold spores can also become airborne and spread to other areas of your home such as carpets, and furniture.
If you don't replace water-damaged, moldy drywall, it could end up compromising the structure of your home. It's also a health hazard, and in some cases, the only way to get rid of toxic black mold on drywall is to remove the affected panels completely.
But some are deadly, such as toxic black mold. Toxic black mold can release spores as it feeds on common household materials such as drywall, carpet, insulation, or sub-flooring that have been exposed to moisture.
The 48-72 hour window is critical to prevent mold growth as it usually takes 24 to 48 hours for mold to germinate and grow. Once fungus gets a hold on a drywall surface, it can be the breeding ground for thousands of spores and quickly spread in the air around the wall with every passing hour.
Exposure to damp and moldy environments may cause a variety of health effects, or none at all. Some people are sensitive to molds. For these people, exposure to molds can lead to symptoms such as stuffy nose, wheezing, and red or itchy eyes, or skin.
If the water absorbs into the drywall, mold can start to grow within a few days. In that case, you'll need to reach out to a contractor to remove and replace it.
Removing mold from a wall is an easy process. In most cases, the mold will scrub right off. Then, spraying it with vinegar and allowing it to sit will help kill it at its roots. Just be aware that if you have flat paint, the vinegar and scrub brush might leave behind imperfections that require touch-up paint.
You should follow your mold remediation technician's recommendations, but most pros request that homeowners wait one day after the process is complete to move back in. After returning home, be sure to carefully inspect the exposed areas for any remaining signs of mold spores.
Clean, throw away, or seal moldy items. Wash and dry, or throw away, moldy bedding, towels, clothing, and draperies. If you have moldy papers you cannot throw away, dry and seal them in a bag until you can dry and clean them.
Outside of a surface mold from humidity scenario, the best strategy for removing black mold from drywall is simply to cut out the impacted drywall and replace it with new. Don't waste your time trying to clean it. It's best to (carefully) cut it out, bag it up, and throw it away.
When searching for black mold, look for circular-shaped spots that are black, dark green or dark brown. Some black mold can also take on shades of orange or have flecks of white within it. Most of the time, black mold has a slightly furry appearance.
While it's tempting to think interior house painting or exterior house painting will solve the problem, it sadly won't. Painting over mold is a waste of time and money because it'll reoccur if you don't treat the actual cause; excessive moisture.
Use 1 part bleach to 3 parts water, according to Sherwin-Williams. If you don't want to use bleach but do want something other than water, try vinegar, borax or branded products that you can find at a hardware store or home center, which also kill mold.
Keep the Humidity Low
Use a dehumidifier to keep the humidity between 30 and 50 percent to deter mold from growing in other areas. Following these steps will help you remove mold from your drywall surfaces and discourage it from growing back.
It is impossible to get rid of all mold and mold spores indoors; some mold spores will be found floating through the air and in house dust. The mold spores will not grow if moisture is not present. Indoor mold growth can and should be prevented or controlled by controlling moisture indoors.
There are many types of black mold. Stachybotrys chartarum is usually the one referred to as " toxic mold." All molds can cause symptoms in people who are sensitive to or allergic to mold. But there is no reason to believe that black mold is any more dangerous than other types or colors of mold.
Mold stays “dormant” in the air or on surfaces even when there's no excess moisture to help it grow. If the humidity in a room increases, mold will start growing in patches on walls, clothes, and more. So, to answer your question, dehumidifiers do NOT kill mold, but they do prevent it by reducing humidity.
Dry mold will become active again once high levels of moisture or humidity are present in the area. Mold will continue to grow and multiply rapidly, which could intensify allergic reactions and other unfavorable symptoms. To put it simply, the answer to the question of “does mold die when it dries out,” is no.
Mold requires moisture to grow but can remain inactive for a while until it is exposed to moisture or high levels of humidity. Without constant moisture, mold will become inactive but they never die unless you get rid of them completely.
When this happens you may ask yourself, “Does water damaged drywall need to be replaced?” But more often than not, the water damaged drywall is going to have to be replaced. Wet drywall will lose its structural integrity and if left alone for long enough will develop mold spores, between the insulation and the drywall.
Mold Detection
In the same way that smoke detectors identify smoke, not fire, the Biomatrix Mold Monitor identifies unseen moisture that can lead to widespread mold growth.
You may ask yourself, “Does water damaged drywall need to be replaced?” But more often than not – the answer is yes! Wet and mold-filled wet walls will lose its structural integrity. Its insulation between your home's studs means an unhealthy and dangerous living space.