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Fame Shock News

dangerous black mold on wood

Author

Sarah Parker

Updated on May 28, 2026

If your wood is rotting, if the black spots come with a dank, musty smell — then you have black mold. It can appear distinct on different surfaces. On wet surfaces, it looks slimy and on dry surfaces, it looks like ash or soot.

Is black surface mold dangerous?

There is no evidence it is toxic to humans or other living organisms. The most common black mold is Cladosporium, which has no known toxic side effects. This type of mold is common both inside and outside of the home. Heavy exposure to black mold could trigger an increase in allergy and asthma symptoms.

What is the most dangerous black mold?

Stachybotrys

Commonly referred to as “black mold,” stachybotrys is one of the most dangerous types of mold and can cause flu-like symptoms, diarrhea, headaches, memory loss and severe respiratory damage.

How long does it take to get sick from mold exposure?

These symptoms usually first appear 2 to 9 hours after exposure and last for 1 to 3 days. Other affected persons have progressive shortness of breath and cough, as well as weight loss. Work-relatedness may only become apparent over long holidays if symptoms resolve and then recur on return to work.

What are the symptoms of black mold exposure?

Symptoms of Black Mold Exposure
Coughing.Postnasal drip.Sneezing.Dry, scaly skin.Itchy eyes, nose, or throat.Nasal congestion.

What happens if you breathe in black mold?

When people with allergies inhale mold spores, they can experience sneezing, runny nose, red and itchy eyes, headaches, skin rashes, throat and lung irritation, difficulty breathing, wheezing, shortness of breath, asthma attacks and more.

Can you stay in a house with black mold?

Because of the risks that come with mold exposure, it can be unsafe to sleep in a house with mold, particularly in the affected areas because you put yourself at risk of mold allergies. This becomes especially concerning if you are sensitive to the mold.

What should you do if you find black mold?

Create a bleach mixture

If the black mold growth in your home is small enough for you to treat alone, a simple mixture of bleach and water can help. Add one cup of bleach to one gallon of water and apply it to the moldy spots. You can also find commercial black mold removal products.

What does mold poisoning feel like?

Each person’s body is affected by mold toxicity in different ways. Some experience constant migraines and headaches, shortness of breath, brain fog, fatigue or even depression. Since symptoms differ from person to person, they may not be quickly associated with mold exposure.

Can mold grow in your lungs?

The mold spores can colonize (grow) inside lung cavities that developed as a result of chronic diseases, such tuberculosis, emphysema, or advanced sarcoidosis. The fibers of fungus might form a lump by combining with white blood cells and blood clots.

Is black mold airborne?

Though its spores are not readily airborne, black mold can produce other harmful contaminants more easily found in the air (as explained in the next section).

Can you get sick from black mold?

The most common black mold symptoms and health effects are associated with a respiratory response. Chronic coughing and sneezing, irritation to the eyes, mucus membranes of the nose and throat, rashes, chronic fatigue and persistent headaches can all be symptomatic of black mold exposure or black mold poisoning.