How to Prevent Mold | The Ultimate Guide to Mold Prevention (2022)

What Is the Purpose of this Guide?

How to Prevent Mold in Your House: The Ultimate Guide is an easy-to-follow guide for beginners that explains what mold is and what causes it to grow so that you can better understand how you can prevent mold and mildew from invading your home. And the sooner you start protecting your home from the effects of these harmful fungi, the sooner you can ensure good health for you and your family.

Who Is This Guide Intended For?

This guide has been written for anyone owning, renting or selling a house. Whether you’re the occupant or a good landlord, knowing what causes mold and how to prevent it will save you a lot of time and money from potential remodelling you would have to do later.

To all moms, dads, students, landlords and maid services, this is the guide you have been searching for. We have put in over a decade’s worth of knowledge about mold and related indoor air quality issues and created the ultimate guide for mold prevention.

How to Use This Guide

Our mold prevention guide starts with basic information, such as what mold is and what causes it. It then moves on to specific parts of your home that you need to take special care of because of their susceptibility to mold contamination. We strongly recommend that you start with the basics (Chapters 1 and 2), after which, you can either continue chapter by chapter or, if you are too busy, skip ahead to specific sections.

We strive to keep the information up to date, so make sure you check back from time to time for the latest news and updates.

Video: How To Prevent Mold In House

Chapter 1 – How to prevent mold in a house

How to Prevent Mold | The Ultimate Guide to Mold Prevention (1)

Mold is a part of any ecosystem, and it can be found in both indoor and outdoor air at any given moment. With that in mind, you should be aware that you cannot create a 100% mold-free environment. But what you can do is ensure that the concentration of mold spores in your indoor air remains minimal. This decreases the chances of it actually multiplying and growing.

In this chapter, you will learn about the most common spots inside a house that mold and mildew tends to grow and what you can do to prevent it from growing there.

(Video) Mold Prevention Tips

Learn more about house mold

Chapter 2 – How to prevent mold in bathroom

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Even though mold can grow practically anywhere, there are three areas of your home that are the most common spots for mold growth. One of them is the bathroom.

Bathrooms tend to be very humid, and moisture is one of the main requirements for mold to grow. As such, if you want to prevent mold from growing in your bathroom, you have to pay close attention to and limit moisture in your shower and/or bathtub, sink and even towels.

Learn more about mold in the bathroom

Chapter 3 – How to prevent mold in the bedroom

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Of all the rooms in your home, you spend the most time in your bedroom…sleeping. For this reason, it is critical to keep mold out of your bedroom and ensure healthy air quality.

In a best-case scenario, your bedroom will be the room with the least furniture, leaving enough open space for air to flow. But in case it is not, consider re-thinking the purpose and functionality of all the things you keep there.

Learn more about mold in the bedroom

Chapter 4 – How to prevent mold in the kitchen

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Along with the bathroom, the kitchen is also often the target of mold attacks. Of course, you don’t want mold anywhere near your food. Learning and understanding how to prevent mold in your kitchen will bring you a step closer to having a healthy life and a happy home.

From how cooking causes mold growth to all the secret places you need to check, this chapter is definitely something you wouldn’t want to skip.

(Video) How To Prevent Mold in The Bedroom - Mold Busters

Learn more about mold in the kitchen

Chapter 5 – How to prevent mold in the basement

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If you don’t have a basement in your house, you are in luck – this is one chapter you can freely skip. But in case you do have a basement or any type of similar storage room in your building, then we strongly recommend you go through this part thoroughly.

Mold loves dark and moist places and your basement can provide both. With that in mind, it’s clear that you will have to do some extra work to ensure your basement is mold free, but it is not an impossible job for sure.

Learn more about mold in the basement

Practical Mold Prevention Tips

Homeowners, landlords and even tenants all want to know the secret to preventing mold indoors — who wouldn’t?

Mold, especially the toxic kind, can compromise a building’s structural integrity and threaten the health of its occupants. That said, mold prevention is key.

There are three main ways to prevent mold:

  1. Limiting moisture indoors
  2. Properly ventilating your home and ensuring sufficient air flow
  3. Cleaning on a regular basis

Video: Mold Prevention Tips

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Prevent mold by eliminating excess moisture

Controlling moisture in your home is essential. This means finding and fixing any sources of moisture, be it broken pipes, leaking toilets, cracked foundation or high humidity.

Relative humidity (RH) is a measure of the amount of moisture in the air relative to the maximum amount the air can hold at that temperature.

In a healthy home, relative humidity should be between 30% and 50%. Any higher and you probably have a moisture problem, not to mention, a mold problem.

Tips for controlling moisture

There are several things you can do every day to reduce moisture, prevent mold and improve indoor air quality:

  1. Maintain indoor humidity levels (RH) between 30% and 50%.
  2. Use dehumidifiers (or reduce your use of humidifiers).
  3. Promptly repair leaky roofs, pipes, soffits and eavestroughs.
  4. Position downspouts so that they drain away from the house.
  5. Have any water damage attended to immediately by a professional.
  6. Ensure that all kitchen and bathroom exhaust fans are clean and that they vent directly outside the home.
  7. Clean carpets and furniture regularly. Better yet, remove moisture-trapping carpets and wallpaper from humid areas such as basements, bathrooms and kitchens.
  8. Add mold inhibitors to paint or buy anti-fungal paint.
  9. Ensure a properly functioning ventilation system and sufficient air flow to minimize moisture.

How air exchange and regular cleaning prevent mold

Indoor air contains a high concentration of contaminants, so it’s necessary you work to keep a sufficient air exchange rate with the outdoors.

An efficient ventilation system will reduce the concentration of contaminants and ensure a healthier, mold-free indoor environment for you, your family and guests.

In addition, getting rid of dirt, debris and other sediment and ensuring a clean home can significantly reduce your chances of developing a mold problem.

By cleaning regularly, you’re also more likely to notice signs of mold growth such as wall discoloration, black spots and water stains (see more below).

Common signs of mold

If you can, try to catch mold problems in their earliest stages by watching for the following signs:

  1. Black spots on walls
  2. Musty, earthy odours
  3. Water stains
  4. Discolouration of walls, floors or ceilings
  5. Peeling, bubbling, or cracking of paint or wallpaper
  6. Condensation on windows, walls or pipes
  7. Rotting

If you need additional information and practical tips related to mold and how to prevent it, call the experts at Mold Busters. For nearly ten years, we’ve helped residential and commercial property owners across Ottawa and Montreal effectively fight mold.

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Get Special Gift: Industry-Standard Mold Removal Guidelines

Download the industry-standard guidelines that Mold Busters use in their own mold removal services, including news, tips and special offers:

More information

(Video) How To Prevent Mold in The Kitchen - Mold Busters

Published: August 20, 2018 Updated: February 8, 2022

How to Prevent Mold | The Ultimate Guide to Mold Prevention (7)

Written by:
John Ward
Account Executive
Mold Busters

Fact checked by:
Michael Golubev
General Manager
Mold Busters

How to Prevent Mold | The Ultimate Guide to Mold Prevention (8)
(Video) The Complete Guide to Dice Making | Cap Molds

FAQs

How do you prevent mold permanently? ›

Keep internal doors open as much as possible and move the furniture away from walls. Open windows on dry days to let fresh air blow into your home, which will reduce moisture and therefore help to prevent mould.

What is the key to mold prevention? ›

Mold Basics. The key to mold control is moisture control. If mold is a problem in your home, you should clean up the mold promptly and fix the water problem. It is important to dry water-damaged areas and items within 24-48 hours to prevent mold growth.

How do you prevent mold naturally? ›

How do you prevent mold naturally? Wipe damp surfaces frequently, run a dehumidifier (or try these DIY approaches), spray vinegar onto damp surfaces such as showers when you're through, and, above all, be vigilant about leaks. Mold is natural, but in the house, not so much.

What prevents mold from growing back? ›

How to Prevent Mold From Coming Back
  • Identify Possible Areas Of Growth. ...
  • Throw Out Moldy Objects. ...
  • Regularly Conduct Maintenance And Repairs. ...
  • Keep Things Tidy. ...
  • Maintain Proper Ventilation And Air Circulation. ...
  • Reduce Moisture Levels. ...
  • Call For Professional Help.
15 Aug 2020

Can you ever really get rid of mold? ›

Use undiluted white vinegar on hard surfaces in kitchens and baths. A bleach solution also works to kill mold. Mix one cup of bleach in a gallon of water, apply to the surface and don't rinse. Mix a 50/50 solution of ammonia and water.

Can you ever completely get rid of mold? ›

According to the Environmental Protection Agency (EPA), “There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture.” Even if you clean the mold, it will still come back if the room is humid and poorly ventilated or there is ...

What kills mold spores? ›

There are several products that can be utilized to kill and remove mold. Some effective products that kill mold are:
  • Bleach.
  • Borax.
  • Vinegar.
  • Ammonia.
  • Hydrogen peroxide.
  • Detergent.
  • Baking soda.
  • Tea tree oil.

Do air purifiers help with mold? ›

Do air purifiers help with mold? Air purifiers help capture mold spores from the air, preventing them from reproducing and spreading throughout your home. While air purifiers won't help treat active mold that's already present on surfaces, they are a great way to control the spread of airborne mold particles.

How do I prevent mold in my bedroom in winter? ›

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  1. Keep windows open whenever possible. ...
  2. 2.Uncover ventilation vents and use extractor fans in rooms without windows. ...
  3. Put lids on pans to stop steam escaping. ...
  4. Don't leave kettles boiling. ...
  5. Dry clothes outside when possible. ...
  6. Use a dehumidifier. ...
  7. Keep household heating on a low level for longer periods.
3 Dec 2019

Can I leave vinegar on mold overnight? ›

To safely and effectively clean a small area of mold, ServiceMaster advises the following: Add full-strength white distilled vinegar to a spray bottle and spray it on the mold. Let it sit for at least an hour before wiping away mold.

What is the best home remedy for mold? ›

Mix one teaspoon of baking soda along with two cups of water and shake in a spray bottle. When thoroughly dissolved spray the solution onto the mold and scrub with a brush. Repeat if necessary. Once cleaned, wipe the area with a wet, clean cloth to remove the solution.

What kind of vinegar kills mold? ›

Using White Distilled Vinegar to Kill Mold. White vinegar is most commonly found with 5% acidity and works best undiluted, so don't worry about mixing it with water first.

Will dehumidifier stop mold? ›

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. If you have a mold problem in your home, don't wait. Mold spreads as long as it has a water source.

Do dehumidifiers reduce mold? ›

A dehumidifier makes the external conditions less welcoming to mold; by removing moisture, they reduce the chances of mold growth. An air purifier, however, removes mold spores from the air, making it harder for mold and mildew to create new colonies.

Does cold house cause mold? ›

Mold growth can occur in cold rooms when ambient humidity is high, where there is poor ventilation, insulation failure, or when wood, cardboard, and other porous materials that can grow mold are stored in the room. Healthy individuals usually do not experience adverse health effects from moderate mold exposures.

Does every house have mold? ›

Molds are very common in buildings and homes. Mold will grow in places with a lot of moisture, such as around leaks in roofs, windows, or pipes, or where there has been flooding. Mold grows well on paper products, cardboard, ceiling tiles, and wood products.

What are the symptoms of mold sickness? ›

Signs and symptoms of allergic rhinitis caused by a mold allergy can include:
  • Sneezing.
  • Runny or stuffy nose.
  • Cough and postnasal drip.
  • Itchy eyes, nose and throat.
  • Watery eyes.
  • Dry, scaly skin.
21 Jun 2021

What are signs of mold exposure? ›

The most common symptoms of mold exposure include:
  • Coughing.
  • Postnasal drip.
  • Sneezing.
  • Dry, scaly skin.
  • Itchy eyes, nose, or throat.
  • Nasal congestion.
26 May 2021

Do air purifiers help with mold? ›

Do air purifiers help with mold? Air purifiers help capture mold spores from the air, preventing them from reproducing and spreading throughout your home. While air purifiers won't help treat active mold that's already present on surfaces, they are a great way to control the spread of airborne mold particles.

What kills mold spores? ›

There are several products that can be utilized to kill and remove mold. Some effective products that kill mold are:
  • Bleach.
  • Borax.
  • Vinegar.
  • Ammonia.
  • Hydrogen peroxide.
  • Detergent.
  • Baking soda.
  • Tea tree oil.

Does every house have mold? ›

Molds are very common in buildings and homes. Mold will grow in places with a lot of moisture, such as around leaks in roofs, windows, or pipes, or where there has been flooding. Mold grows well on paper products, cardboard, ceiling tiles, and wood products.

Will a dehumidifier stop mould? ›

Mould will easily grow and spread if the right conditions are present. So, dehumidifiers don't kill mould, but they can help to prevent it from growing inside your home by reducing humidity.

Videos

1. How To Prevent Mold In The Basement? - Mold Busters
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2. How To Prevent Mold In The House - Mold Busters
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3. 5 EASY Methods to Prevent Mold When Seed Starting
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4. Ultimate Guide to Climbing Skin Care
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5. Basement Mold Removal
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