Asked by: Hayet Altenhofer
home and garden indoor environmental quality

Can cinder blocks grow mold?

Last Updated: 13th June, 2020

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Mold is a type of fungus that tends to grow in areas with a lot of moisture. It tends to grow on organic matter such as wood or textiles, but it can also grow on concrete or cinder block walls. Clean it as soon as possible to help prevent its negative effects. Cinder blocks are porous and hold mold growth easily.

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Similarly, how do you treat mold on cinder blocks?

Step 3: Get Rid of the Mold The best thing for removing mildew and mold from walls is a bleach/water solution. Mix one part bleach to three parts water and apply it with a sponge or rag. There are also a number of commercial solutions available at your local True Value hardware store.

Also Know, is mold on concrete dangerous? Dangers. Mold spores can cause many types of health risks, especially to those susceptible to allergies and respiratory problems (such as asthma), and they can cause inflammatory rashes, headaches, and other flu-like symptoms. So whenever you're around concrete mold, make sure to take the proper precautions.

Then, what kills black mold on concrete?

  1. Place a hose on its most powerful setting to clean off the concrete.
  2. Scrape off any remaining black mold with a spatula.
  3. Mix a solution of chlorine bleach, detergent and water.
  4. Apply the solution to the concrete with sponge or brush.
  5. Rinse off the concrete.
  6. Scrub the concrete and rinse again if black mold persists.

What does mold on cinder block look like?

If you have a basement with cinder block walls, you might find mold growing on the cinder blocks. The visible mold might be accompanied with a strong, musty smell. It tends to grow on organic matter such as wood or textiles, but it can also grow on concrete or cinder block walls.

Related Question Answers

Cami Dobrolyubov

Professional

Does bleach kill mold on cinder block?

Removal. It is not necessary to paint cinder blocks with expensive products to remove mold. The U.S. Environmental Protection Agency, or EPA, recommends that homeowners use liquid dish detergent and water to remove mold. A cleaning solution of chlorine bleach and water will also kill mold.

Chelsie Omeñaca

Professional

Can you Drylok over mold?

Yes and no. DRYLOK® may be used over any other cementitious-type waterproofing paint in good, repaintable condition, either inside or outside.

Grace Tatje

Professional

Can mold on walls make you sick?

In some cases, mold in your home can make you sick, especially if you have allergies or asthma. Whether or not you're allergic to molds, mold exposure can irritate your eyes, skin, nose, throat, and lungs. Here's what you can do to combat mold problems, and take care of yourself and your home.

Romel Gordalina

Explainer

Can you paint over mold?

Mold is unsightly, and remediation can be expensive and take up a lot of time. But painting over mold is a bad idea for many reasons. Paint does not kill mold, and it will not stop the source of the mold. Mold will continue to grow under the paint, and you will see visible signs of mold again.

Sohel Haritopoulos

Explainer

Does vinegar kill mold?

White vinegar is a mild acid that is known to kill roughly 82 percent of mold species, and it can even help prevent mold outbreaks in the future. Pour plain, white distilled vinegar into a spray bottle. Because mold is such a resilient force, it's best not to dilute the vinegar.

Marielle Nardini

Explainer

What is the difference between mold and mildew?

Mildew is typically white, gray or yellow and grows on the surface of moist, warm areas. Its texture is fluffy or powdery. On the other hand, mold tends to be green or black, and it usually grows underneath the surface of anything that has gotten wet. Its texture can be fuzzy or slimy.

Narciso Kusmann

Pundit

Can mold be scrubbed off?

Scrub moldy surfaces with mold cleaner
water and 1/2 cup bleach mold cleaner to kill the mold. Use a soft brush and work until signs of the mold disappear. After scrubbing the surfaces, simply allow the bleach solution to continue to penetrate the surfaces and dry. Wipe off, but DO NOT RINSE these surfaces.

Neonila Abalakoff

Pundit

Can mold damage concrete?

Therefore, unless the concrete is kept extremely clean, mold growth can occur. Of course, even if the concrete is covered in dust, mold will not grow without sufficient moisture. This includes tackling both airborne moisture (lowering the humidity) and liquid moisture (flooding, vapor drive).

Othman Ostermair

Pundit

How do you remove black mold from basement block walls?

Scrub Thoroughly, Then Disinfect
Once all the mold is gone, you may want to use a dilute bleach solution to disinfect. But vinegar also disinfects, and it penetrates concrete better than bleach. Spray the walls with a 1-to-1 solution of vinegar and water and allow the vinegar to dry.

Virgelina Suañez

Pundit

What is black stuff on concrete?

If your concrete has ugly charcoal-gray or black streaks or splotches, black algae is probably the culprit. Black algae can grow on many outdoor surfaces such as concrete or roof shingles, and will thrive as long as there is moisture and sunlight.

Dolça Ehrenfried

Pundit

Can mold in basement affect upstairs?

If I have mold in my basement will it affect my upstairs? I don't have a central heat and air system. Yes, in most scenarios mold issues in the lower portion of a home will affect the areas above it. This is due to the “stack affect” which is the principle of air rising inside of a home.

Galatea Shirikov

Teacher

Will vinegar kill mold on concrete?

To kill mold: Use white distilled vinegar and pour it into a spray bottle without watering it down. Spray the vinegar onto the moldy surface and leave it to sit for an hour.

Hildegard Voltolina

Teacher

Can water come up through a concrete floor?

The easiest way for water to leak through concrete is to come in through any cracks in the floor. Ignoring cracks in your concrete floor—even those as small as 1/8 inch wide—is like inviting water into your home. These materials come pre-mixed or in concrete-like form that must be mixed with water.

Xiuyu Urbino

Teacher

Can black mold kill you?

The short answer for most healthy people is no, black mold won't kill you and is unlikely to make you sick. However, black mold can make the following groups sick: very young people. people with existing health conditions.

Duane Wefer

Teacher

What does black mold smell like?

Most often, the first sign of black mold is to see or smell it. Mold will give off a musty smell or a smell associated with rotting vegetables, depending on the type of mold and what the mold is consuming. Preventing the occurrence of black mold is as cut-and-dry as eliminating water or high-moisture in your home.

Iluminacion Nyhsen

Reviewer

Do you need to rinse bleach off concrete?

Bleach not mixed with a detergent serves as a disinfectant to sanitize concrete surfaces. Therefore, they recommend cleaning the concrete surface with a detergent, then rinsing and drying the area before applying the bleach solution, which should remain on the surface for 10 minutes before rinsing off.

Nassiba Gremlich

Reviewer

What kills mold on cinder block?

To kill mold spores and their roots, pour straight 3 percent peroxide (H2O2), undiluted, into a spray bottle and saturate the blocks with it. Let the H2O2 do its work for 10 to 15 minutes, and scrub the walls to remove all dead mold. You can add vinegar to the H2O2 in the spray bottle to make the solution stronger.

Lala Moracho

Reviewer

What kills mold on cement?

The best solution is to scrub and clean the affected areas with a mold-killing detergent or a simple solution of household bleach and water. Be sure to scrub aggressively to get down into the pores of the concrete. Let the detergent or bleach solution soak in for a while to ensure that all the mold is killed.

Cezar Streubo

Reviewer

How do you stop mold on concrete?

Here's how to to keep mold away from your home:
  1. You'll need:
  2. Remove the mold:
  3. Step 1: Put on old or already-stained clothing and rubber gloves.
  4. Step 2: Add 1 part bleach to 4 parts water and mix thoroughly.
  5. Step 3: Dip your brush into the cleaner and scrub the moldy surfaces thoroughly.
  6. Step 4: Let the area dry.