Even if your drywall contains moisture- and mold-resistant properties, it can still be at risk for mold growth if not for careful design, proper construction, and thorough maintenance. These factors are meant to manage moisture, which is the only variable that can be controlled within the construction environment.
If you find mold on your drywall, you'll most likely need to get it replaced. Mold on drywall can indicate a deeper problem in the stud space behind your wall since it can penetrate the surface. In this case, you'll need to cut it out and replace the drywall in the affected and surrounding areas.
Adequate ventilation, proper drainage, solid surfaces, and proper cleaning are essential. If you do replace standard drywall in your bathroom, use a paperless board like DensArmor or USG Glass-Mat. Also, use National Gypsum's mold resistant joint compound. Mold will grow on standard drywall mud.
Always hang PURPLE drywall with the purple side out, or facing into the room.
Sheetrock® Brand Mold Tough® Panels Firecode® X (UL Type SCX) are 5/8 in. (15.9 mm) Type X panels that feature a noncombustible, moisture-resistant gypsum core that is encased in moisture-and mold-resistant, 100% recycled green face and brown back papers.
Mainly, it doesn't use the traditional paper facing. Mold-resistant drywall typically comes in two forms – either with a gypsum core and fiberglass facing or with gypsum material consistent throughout the drywall (also known as homogeneous).
Nor will it prevent mold in the case of flooding, when water saturates the drywall and the organic wood framing behind it. But in rooms that experience frequent humidity and are often subject to mold and mildew, such as bathrooms or basements, mold-resistant drywall is a good choice.
Every use of the shower, bath, and sink contributes to the moisture in the air, creating an ideal environment for mold growth. Installing mold-resistant drywall can significantly reduce the risk of mold proliferation, ensuring your bathroom remains clean, safe, and hygienic.
The reason you will want to have the correct side of drywall facing properly is that it is easier to tape and finish a wall with the correct side of drywall facing outwards.
To address these concerns, building codes often specify several key requirements for wet areas. These typically include: Use of moisture-resistant (MR) or mold-resistant drywall in wet areas. Proper sealing of joints and penetrations to prevent water intrusion.
Green drywall, often referred to as greenboard, resists moisture to a lesser extent than purple and is ideal in rooms that have occasional moisture exposure, like laundry rooms.
For this reason, we highly recommend Suretherm Anti-Condensation Paint. Suretherm helps prevent the route cause of the problem - the moisture! Suretherm Anti Condensation Paint is an internal water-based emulsion that is specifically designed to help deal with internal mould and damp caused by condensation.
It is possible to tile over drywall where it is not subject to extreme humidity and is secure. It is not recommended to lay tiles over walls and areas subject to moisture, such as in showers. The water in these areas could eventually seep into the tile, causing damage to the tile, mold, or infestations.
Homeowners insurance doesn't usually cover mold damage or removal unless it's the result of a covered peril. If the mold in your residence was caused by something sudden or accidental, such as a bursting pipe or some other covered incident on your policy, you may be protected.
In most rooms, hanging drywall vertically means you'll have more seams to cover than if you hang it horizontally. You'll also need to use more screws per sheet of drywall to secure it. Taping, mudding, and sanding those seams and screws will take more time and increase the cost of installing drywall.
Hang the Ceiling First
This makes it much easier to manage and attach the panels since you will not have to fumble around with the screws, measuring tape, and so on. Screws for drywall lids should be placed no closer than 16” from the wall. This allows the drywall to have a bit of flexibility to prevent ceiling cracks.
Even if there is no huge water leak such as from a hole in the roof, the steam and moisture of showers, bathtubs, and boiling pots can potentially affect the structure and safety of a house or building. This is why vapor barriers are needed in areas that are more moisture-prone.
One key difference between the two is that sheetrock is a brand name of drywall made by the United States Gypsum Corporation. Another difference lies in their production process; sheetrock has a slightly denser core than drywall due to the addition of a small amount of wood fiber to the gypsum core.
Simply put, acrylic panels have the look and style of tiles but without the mold, moisture, and cracking problems.
phasing out greenboard
This relatively new addition to the drywall market is gradually replacing green board because it's suited to the same tasks but even more water- and moisture-resistant than green board. Paperless drywall consists of a water-resistant gypsum core and a fiberglass (rather than paper) backing.
mildew and mold will develop within 24-48 hours of water exposure. Even worse, it will continue to grow until steps are taken to eliminate the source of moisture, and effectively deal with the mold problem. Use the diagram on the facing page to assess the extent of mold in your home.
Areas that experience high moisture levels or excessive humidity due to appliances, fixtures, or environmental conditions can benefit from mold-resistant drywall. Consider using mold-resistant drywall in kitchens, bathrooms, laundry rooms, mudrooms, and similar spaces where moisture is constantly present.