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Stop The Build-Up Of Moisture with Mold Resistant Drywall

Mold growing on wall in the bathroom

If you've every worked a disaster recovery, whether it's a hurricane, bad snow storm or flooding, you're probably already familiar with how badly standard drywall can take on moisture and create serious mold problems. Following the Joplin, Missouri EF-5 mile-wide tornado that wiped out the center of this small Midwestern city, doctors began to notice numerous complaints where wounds suffered from the debris in the tornado actually began growing mold, eventually leading to the death of five additional victims. Though most molds and mildews found on a daily basis aren't quite this serious, they can still cause significant health problems if left unchecked. The best way to keep these problematic fungi from taking over your home and making you sick? Mold-resistant drywall. Here are more details on how this specialty drywall can help keep your home in good order.

What is mold-resistant drywall?

Regular drywall contains some amount of moisture, but not enough to outright cause problems with mold. To reach that point, it needs to get wet, though not very much, for mold to colonize and spread, often through the paper coating. By comparison, mold-resistant drywall is paper-free, to keep mold from having a place it can get a foothold. It also is more resistant to moisture, though it's not fully waterproof, so it soaks up less moisture, making a less habitable environment for mold and mildew.

How does it work?

Building Greenboard With ConstructionRegular drywall is manufactured using a gypsum slurry that has had air added to it which is then poured between two pieces of special facing paper, then the entire assembly is passed between rollers to ensure a uniform thickness. It then has the edges formed and sealed before being cut to length and dried. Mold-resistant drywall goes through a very similar process, but without the paper facing on both sides. Without the paper, it's harder for moisture to wick up the board and further into the gypsum in the middle, so mold doesn't really have a place to grab hold. It also absorbs moisture much more slowly than the gypsum portion of standard drywall. Though it's not a completely moisture-proof wallboard, it is much more resistant to moisture than standard drywall.

Does it cost a lot more?

Though it is a little more, moisture-resistant drywall is not especially expensive. You'll pay a few dollars more per sheet as a premium for the mold- and moisture-resistance, but compared to the cost of ripping out the drywall, repairing the wall and refinishing it, the cost is fairly reasonable for areas where moisture may end up being a long-term problem.As a value-added product, it can often be an easy sell to prospective clients as it provides them with additional protection both at the time of construction as well as insurance against problems in the future.

Where should I use it?

Shower headMold-resistant drywall is best used in places where moisture may be a problem, such as in a basement, garage, kitchen or bathroom. Another part of your home to consider are those areas that tends to have cool, moist environments where mold and mildew can thrive and spread. If you have areas where you've noticed condensation forming on the wall surface in the past, it's also an area that's a prime candidate for mold-resistant drywall, though you may also want to consider adding an effective, well-sealed vapor barrier and insulation to help reduce heat transference and condensation.

By keeping these benefits in mind, whether you're building or repairing your own home or taking on a special project for a client, it's much easier to decide when mold-resistant drywall is a better option for your project. Whatever your application, Wallboard Supply Company has the perfect drywall fo0r your job, either on hand or available through our special order service. We've been serving the region for several decades and have significant experience in helping our customers get the perfect product for their project. If you have a need for drywall be sure to download our drywall product guide below.


 Drywall Product Guide

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Wallboard Supply Company is a third generation, family run business that has been serving New England's building needs since 1970. Bob Filion started the company with a commitment to provide quality drywall and finishing products with unmatched customer service. The company has grown over the years, expanding its' product range, but never wavering from its' core values.