When constructing or renovating a space, preventing mold growth should be a top priority, especially in areas prone to moisture, like bathrooms or basements. One of the most effective ways to safeguard your home from mold damage is by using mold-resistant drywall. In this blog, we’ll explore what mold-resistant drywall is, the different types available, and the pros and cons of drywall.

What Is A Mold-Resistant Drywall?

Mold-resistant drywall is specially designed to resist moisture and inhibit mold growth. Standard drywall is vulnerable to mold in damp environments because it contains paper facing, a food source for mold. If mold growth occurs, removing mold from drywall is crucial to prevent further damage and health risks. 

In contrast, mold-resistant drywall often replaces this paper facing with a fiberglass surface, preventing mold from taking hold. Additionally, the core of mold-resistant drywall is formulated with additives that further reduce the chances of moisture absorption and mold formation. Mold-resistant drywall is ideal for high-moisture areas like kitchens, bathrooms, showers, basements, and laundry rooms, where mold is more likely to develop. However, it’s not limited to these areas; it can be installed anywhere in a home where mold prevention is a concern.

Types Of Mold-Resistant Drywall

mold drywall types

Mold-resistant drywall comes in different varieties to suit various needs and environments. Below, we’ll explore the major types, each offering unique benefits.

Green Board Drywall

Greenboard drywall is one of the oldest mold-resistant drywall options. The “green” in its name comes from the green-colored moisture-resistant paper facing used in its design. It is more water-resistant than standard drywall but not completely waterproof. It is typically used in areas like bathrooms and basements but is not ideal for areas with heavy water exposure, such as shower stalls.

Purple Board Drywall

Purple board drywall takes moisture resistance a step further. It is similar to green board but offers more comprehensive protection against mold and mildew. Purple board drywall has a fiberglass mat on both sides and provides superior protection in areas with direct exposure to water, like bathrooms, kitchens, and laundry rooms.

Blue Board Drywall

Blue board drywall, also known as moisture-resistant drywall, is a type of gypsum board formulated specifically for high-humidity areas. Its distinctive blue paper covering is designed to withstand moisture, making it a perfect choice for indoor spaces such as bathrooms, kitchens, and basements where moisture levels are higher than normal.

While blue board drywall offers strong resistance to moisture, it is crucial to understand that it is not intended for use in locations subject to continuous water exposure, such as in direct contact with water or in wet areas like shower stalls. Following manufacturer guidelines and local building codes is essential to ensure proper installation and use of moisture-resistant drywall in your project.

Paperless Drywall

Paperless drywall is another excellent option for mold resistance. As the name suggests, this drywall doesn’t have a paper facing. Instead, it uses fiberglass matting, which doesn’t support mold growth. Due to its fiberglass surface, it’s slightly harder to cut and work with but provides excellent moisture resistance and durability.

Pros And Cons Of Mold-Resistant Drywall

mold resistant drywall

Like any building material, mold-resistant drywall has advantages and potential drawbacks. The pros and cons below will help you determine whether this particular type of drywall suits your project.

Pros

  1. Mold Prevention: The primary benefit is the protection against mold. By resisting moisture and reducing the likelihood of mold growth, mold-resistant drywall protects your home from the health hazards associated with mold, including respiratory issues and allergies.
  2. Extended Durability: Mold-resistant drywall tends to last longer in damp environments than standard drywalls. Its ability to resist moisture damage extends the lifespan of the wall surface, reducing the need for frequent repairs.
  3. Health Benefits: Mold exposure can lead to various health problems, from mild allergies to more severe respiratory conditions. Using mold-resistant drywall creates a healthier indoor environment, especially for individuals sensitive to mold.
  4. Versatility: Mold-resistant drywall can be used in various parts of the home, not just bathrooms or basements. It is suitable for any room where moisture could be a concern, offering flexible application across your entire home.

Cons

  1. Higher Cost: Mold-resistant drywall is typically more expensive than traditional drywall. While the cost difference might be minimal in small projects, it can add up in larger installations, especially if you cover entire rooms or multiple areas.
  2. Less Soundproofing: Some mold-resistant options, especially those made from fiberglass, might not offer the same level of soundproofing as standard drywall, making them less ideal for rooms where noise reduction is a priority.

Conclusion

Mold-resistant drywall is a smart investment for individuals who want to protect their property from moisture damage and mold growth. Whether you’re renovating a bathroom, finishing a basement, or simply taking preventive measures, installing mold-resistant drywall can provide long-term health and structural benefits. With different options available, like green board, purple board, cement board, and paperless drywall, you can choose the best product suited to your needs and budget.

FAQs On Mold-Resistant Drywall

Is Mold-Resistant Drywall Worth The Extra Cost?

Yes, especially in high-moisture areas. While it does cost more than standard drywall, the investment can pay off by reducing the high risk of mold growth, which can lead to costly repairs and health problems in the future.

Can Mold Still Grow On Mold-Resistant Drywall?

Mold-resistant drywall significantly reduces the chances of mold growth, but it’s not a complete guarantee. Mold can still grow on surfaces if moisture is present and not addressed, especially in cases of severe water exposure.

Where Should Mold-Resistant Drywall Be Used In A Home?

It is best used in areas with high moisture exposure, such as bathrooms, kitchens, basements, and laundry rooms. However, it can be installed in any room where mold prevention is a concern.