Resist the Black Mold! A Complete Guide in Killing Black Mold in Shower

It’s dark. It’s pesky. And worse, it’s persistent. Find out how to kill black mold in shower like a cold-blooded hitman. 

Slowly climbing its way to small cracks and crevices, black mold effortlessly invades tiles, ceilings, shower caulks, and other parts of the home. Add to that, it’s even harder to kill than ordinary germs and fungi.

But don’t lose hope! We’ve got a solution just for you--a solution that can permanently rub off that unsightly black mold in shower and other problem areas.

How Black Mold in Shower Develops

Mold plays a critical role in the breakdown of organic matter, making it important in maintaining homeostasis in the environment. But once mold develops indoors, it’s a completely different story.

So why does black mold in shower develop? Three factors contribute to mold growth: moisture, temperature, and nutrients. With all these combined, microscopic spores are able to create colonies, where black mold thrives and multiplies. 

Considering that the bathroom is always moist and humid in nature, it’s not difficult to see why it’s the favorite breeding ground of black mold. Add to that, water problems can also be the main cause of continuous mold development, making it extra important to create an effective mold prevention scheme for your home.

How to Prevent Black Mold Formation

A quick, band-aid solution won’t keep indoor mold at bay, especially since your bathroom, along with other areas in your home, may provide a conducive environment for mold growth.

So instead of focusing solely on getting rid of black mold in bathroom, you should first eliminate some of the factors that allow mold growth in your entire household by following these steps:

Check and Address Possible Problem Areas Within Your Home

Let’s go back to the 3 factors that promote mold growth so we can identify some of the problem areas in your home. Does your ceiling show signs of water leakage? Is your gutter damaged? Does your basement consistently flood? Or maybe mold is growing underneath your carpet? By making the necessary repairs and installing products that can make your home mold-resistant, you can keep molds from coming back, minus the extra work. 

Monitor Indoor Humidity Levels

One sign that tells you that there is excess moisture in your home is frequent condensation in your walls and windows. According to the Environmental Protection Agency (EPA), the ideal indoor humidity level ranges between 30% to 50%. Anything higher than that can cause mold growth, so it’s always wise to invest in a moisture meter and a whole house dehumidifier, which minimizes and controls humidity in the air.

Promote Proper Ventilation

Cooking, cleaning, and doing the laundry may promote excessive moisture buildup if air isn’t properly circulating inside your home. To make sure moisture is kept within ideal levels, open doors and windows to let fresh air inside.

If Possible, Use Mold-Resistant Products

There’s literally no way to mold-proof your home, but you can prevent mold growth by using mold-resistant products and building materials, especially if you are planning on a new construction or home renovation.​

​How to Get Rid of Black Mold in Bathroom

Your bathroom has everything it takes to promote mold growth, so let’s focus on clearing this area first. Here are some of the methods you can use to keep your shower mold free. 

​Method 01

If your shower is getting too moldy, you can replace your old caulk, tiles, or curtains with high quality building materials designed to prevent or delay mold growth. This may be a more expensive (and extensive) measure, but it is definitely worth it especially if the mold growth is already uncontrollable.

Method 02

You can also clean your bathroom the natural and non-toxic way by the use of vinegar, hydrogen peroxide, baking soda, or borax. Here’s how:

  • Vinegar: A natural, mild acid that can destroy over 80% of different mold species, white, distilled vinegar offers an easy and effective way to kill black mold in shower and other areas. Just spray it on the affected areas and leave it for approximately an hour before wiping it clean. 
  • Hydrogen Peroxide: 3% hydrogen peroxide is efficient in getting rid of mold in bathroom walls, floor, and fixtures. Just spray it directly on the moldy spaces and leave it for about 10 minutes. Then, scrub the surface and wipe it with a clean cloth.
  • Baking Soda: More than killing mold, baking soda can also hold moisture to prevent possible mold formation. Just add ¼ tablespoon of baking powder to water and spray it on the affected areas. Then, rigorously scrub the surface and water it down. Spray the solution on the surfaces again to prevent future mold formation.
  • Borax: Just like baking soda, borax can also inhibit mold growth. To clean the area, mix 1 cup borax to about a gallon of water, scrub the surface with the solution, and wipe it clean. You don’t need to rinse the area anymore as the remaining solution can help ward off possible mold formation.
  • Create a Mixture of Natural Cleaning Solutions: For unruly ceiling stains, you can go beyond your usual cleaning solution by mixing in ¼ cup white vinegar and 1 tablespoon borax into 2 cups of warm water. Spray it into the surface and scrub the area until it is thoroughly clean. Then, spray some of the solution again before letting it completely dry out. For best results, consider sanding the shower ceiling and repainting it with waterproof, mold-resistant paint.

CAUTION: When using any cleaning product, always wear hand gloves, protective goggles and a mask to prevent any health risks. This is especially true if you are using chemical-based products.

Method 03

If none of these non-toxic household products are working for your specific mold problem, you can also use a powerful cleaning agent for better results. Chlorine bleach is best known for killing black mold in shower, caulks, and tiles. Just a word of caution: this chemical is toxic and it should never be used with ammonia.

​To use chlorine bleach, simply add 1 cup bleach to about 1 gallon of water, spray the solution directly to the surface, and scrub. Repeat when necessary. After scrubbing, simply wipe off the solution, but do not water it down. This will kill invisible spores and prevent mold formation. 

How to Maintain a Mold-Free Bathroom

Once your bathroom is mold-free, try to properly ventilate and dehumidify the area by opening the windows and doors and by using a dehumidifier for bathrooms. By doing so, you can fully eliminate factors that promote mold growth.

​Final Words

Getting rid of black mold in shower and other problem areas is always a combination of prevention and cure. Other than scrubbing and rinsing, you should also take a proactive approach in looking for the possible causes of mold growth in your home. This way, you can live mold-free for the coming years.

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