It’s a cement based product with a mesh glass underlayment in it which makes it waterproof and very durable. Mold-Resistant Drywall vs. Green Board . Cement board is a more water resistant construction material than gypsum. Paperless drywall has been replacing paper drywall. It is important to note that manufacturers never guarantees their product as being immune to mold—only resistant to it. It gets its name from the telltale color of the paper facing on the front and back. All drywall is a fairly brittle material that can be cracked and damaged, but repairs are fairly easy to make, either by taping and refinishing the damaged area with taping compound or by cutting damaged areas away and installing a drywall patch. With consistent exposure to moisture, drywall can become rotted and need to be replaced sooner rather than later. Sheet-type materials cover large areas, installing quickly and forming a base for the addition of paint, wallpaper or tile finish. x 4 ft. x 8 ft. UltraLight Panels Mold Tough Sheetrock Brand UltraLight Mold Tough 1/2 Sheetrock Brand UltraLight Mold Tough 1/2 in. You can use galvanized decking screws or roofing nails to install cement board. But these products are by no means waterproof or moldproof—and the manufacturers do not claim so. Cement board is a very hard panel formed by cement slurry and reinforced fiberglass mesh. There are four main types of drywall: Standard drywall is the least expensive and comes in … Buying in bulk will notably reduce this price. Like any form of drywall, the mold-resistant form is generally a very durable, easy-to-care-for wall surface. If you are installing something in a high-moisture area, it is recommended to use the cement board. If the goal is to not have any mold growth in the assembly then all materials should be mold resistant. It's rotted out because of small cracks in the grout at the base of the wall. Mold Resistant Drywall Tape and Joint Compound Research has indicated that quick-setting joint compound and fiberglass tape may withstand leaks and flood events better than regular drywall joint compound and paper tape. Big box home improvement centers sell a sheet of 1/2-inch, 4 x 8-foot standard drywall for about $12 per sheet, while a comparable sheet of good mold-resistant drywall costs about $16. For tiling kitchen backsplash. Nor will it prevent mold in the case of flooding, when water saturates the drywall and the organic wood framing behind it. Drywall panels fit between wall studs spaced 16 inches or 24 inches apart. x 4 ft. x 8 ft. Gypsum Board is the first and lightest 1/2 in. Once complete, the surface is ready for painting or another finish. Concrete backer-board, once commonly referred to in the field by the brand name Wonderboard(r), is a cement product designed as a sheathing material for walls and floors. The home builder wants to demolish that wall, make it plumb, and apply green board against the wood wall, then apply cement board over the green board. This product is … HardieBacker is a commonly used cement board that is commonly installed under the tile. One potential weapon in the mold-prevention arsenal is mold-resistant drywall, a product marketed aggressively by manufacturers. The new mold resistant d/wall board is paperless (they should use the term resistant loosely because there is an absence of material for mold to grow). This form of mold-resistant drywall typically uses fiberglass mesh instead of paper for the facing and backing. It provides a strong base on which to install tile and stone. It is made just like regular drywall except that is had more fiberglass in it and the paper has less organic product in it. Cement board provides a suitable backing for tile. Modern mold-resistant drywall combines the moisture resistance of older green board with materials and engineering that also make it quite resistant to mold. Her education includes marketing and a bachelor's degree in journalism from the University of Kansas. Though green board is a more cost-effective option than mold resistant wallboard, it’s less effective at mold prevention. Drywall (also known as wallboard, gypsum board, or sheetrock) is an interior construction panel that's used for making walls and ceilings. Baseboards and other trim are generally nailed in place after the drywall is installed. Mold Resistant Drywall vs. Durock. If you can find one that's combined with an abuse-resistant board (since it's a rental) that would be the best of both worlds. Not all drywall is created equal. It’s mold resistant. Due to their cement and fiberglass base material, cement boards are more impact—resistant and more durable than drywall (made of gypsum and paper sheets). Whereas drywall comes in 4-by-8 sheets, cement board comes in 3-by-5 sheets. But, you’ll need a circular saw, fitted with a heavy-duty blade to cut fiber cement board. Drywall is an alternative to the traditional lath-and-plaster method of constructing interior walls. In the case of gypsum wallboard, that organic material is found in the paper facing on the drywall panels (the gypsum core is non-organic and not subject to mold). Drywall cuts easily with just a utility knife, but you'll need a circular saw, fitted with a heavy-duty blade, to cut cement board. Cement board is sometimes called Durock, Wonderboard, and Hardibacker. This paper-backed drywall with a light green tint is often installed in high-moisture areas, heavily coated with cement board or bathroom-quality paint on top. moisture- and mold-resistant panel available. In normally dry locations, the substantial extra cost of this product is probably not worth the investment. Whereas drywall comes in 4-by-8 sheets, cement board comes in 3-by-5 sheets. Ultralight Drywall Performs Well and Is Easier to Install. Note that these products all combine mold-resistance with the moisture resistance that was once the virtue of green board drywall. (3)You can use taper-head drywall screws to install gypsum board. This type of drywall is covered with fiberglass instead of paper, which protects the gypsum board from rot and offers even greater resistance to mold and mildew.. If you're just painting the drywall (i.e. I emphasize paper because paper is the "FOOD" for mold. Cement board, meanwhile, comes in panels that are similar to that of drywall but that is where the similarities will end. Water-Resistant Drywall vs. Cement Board . It costs more than regular drywall and its thickness means it needs to be used next to the thickest form of regular drywall. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board. It’s hard, durable, naturally moisture- and mold-resistant, and won’t rot, disintegrate or swell when exposed to water, making it ideal for use behind ceramic tile, backsplashes and countertops. The smaller dimensions of cement board make the installation of it on large walls more difficult, but cement board panels fit vertically in 3-foot wide showers, or horizontally behind a standard 5-foot bathtub. However, Fiber cement boards are far heavier than gypsum board. Huge quantities of this product are still being sold, but don't use it if your principal goal is mold prevention. Paperless Drywall . While all gypsum-based drywall is naturally fire-resistant, the PURPLE ® family of high-performance drywall and cement board products is unique because it also resists moisture, mold and mildew. But I noticed after buying it that the side that faces the studs was made of the same paper as the regular drywall. It was built circa 1970, and the installer used conventional sheetrock with 4X4 ceramic tiles. Use cement board for the tub area, especially if tiling. Today moisture resistant sheetrock has been replaced in the shower area with cement board. Cement-based backer boards Durock, Wonderboard, and Hardibacker are all mineral-based or cementitious materials. Lightweight and sustainable 5/8 in. Cement board is a water proof product and will not deteriorate when in direct contact with water. Green-board drywall is water-resistant, not waterproof. 1/2 in. Sheetrock Brand UltraLight Mold Tough 1/2 in. That said, it is less likely to grow mold than regular paper-backed drywall. We were planning on replacing most of that drywall with the mold resistant dry wall (I think that's called green board), but Home Depot and Lowes keep pushing the cement board for the part that we're going to tile (around the tub/shower). Contemporary specialized construction materials greatly reduce the time and the skilled labor necessary to complete projects once entrusted to craftsmen. Another alternative to mold issue is green board. The applicable product standard for mold-resistant gypsum board is ASTM C1396. Use PermaBase ® Cement Board instead of drywall under tile in the kitchen or bathroom. Drywall installs with taper-head drywall screws. Water resistant- yes. I had suggested to the home builder that I would rather put 15 lbs felt over the wood wall, then put the cement board over the felt, but the home builder said that they would not do that. By creating an account you agree to the Hunker, USG: Durock Cement Board 1/4-inch Underlayment. Most if not all drywall manufacturers sell a mold resistant drywall that is also moisture resistant, so a long as it is not exposed to contaminated water it won’t grow mold. Cement boards are made up of cement and glass fibers. rest of the bathroom), then use a mold/water resistant panel. Cement board is suitable as an underlayment on countertops, walls and floors. Drywall, or wallboard, allows do-it-yourselfers to obtain a smooth wall surface with minimal drywall finishing skills. (1)Fiber cement boards are far more durable and impact-resistant than gypsum board. Painted surfaces should be kept clean and should be repainted periodically to preserve a good moisture barrier. Good resistance to moisture as well as mold. for the rest of the bathroom you can use a mold resistant drywall like these. Modern mold-resistant drywall that also includes moisture-resistance is about 50 percent more expensive than standard drywall. Rotted drywall can also lead to a buildup of mold and mildew which is what leads to dirty tiles. Get daily tips and tricks for making your best home. In my last basement I finished I put up the Purple Mold/Mildew resistant board. The easiest brand of mold resistant drywall to find is the USG Sheetrock Mold Tough Drywall. Drywall panels fit between wall studs spaced 16 inches or 24 inches apart. Without this, mold spores can not take root. (2)You can cut gypsum board easily with a utilityknife. Common Types of Drywall or Gypsum Wallboard, Fireproof Drywall: Basics of Fire-Rated or Type X Drywall, How to Identify and Treat Mold in Your Basement, Composition of Drywall and Joint Compound, Hardwood Flooring in Kitchens Review: Pros and Cons. The other walls in non-wet areas should be done with mold board because of the humidity in bathrooms. It's composed of a hardened gypsum core with a thick paper on the front, back, and long edges. It is an older form of water-resistant drywall that is gradually being phased out in favor of products that combine both moisture resistance and mold resistance. Cement board is perfect for tile-covered wet applications like showers and tub surrounds. It is the standard wall finish material used throughout the construction industry. Wet or dry, such backer board provides a … Because fiberglass is a non-organic material, mold has no food source necessary to colonize for it to colonize. What Is Greenboard Water Resistant Drywall? What Is Cement Backer Board and How Is It Used? There is no drywall that is truly water-resistant. Need to replace a tiled wall behind a 5' tub with a shower. U.S. Gypsum (Sheetrock® Brand Humitek®) National Gypsum (Gold Bond Brand XP) Temple-Inland (Silent-Guard™ TS) Georgia Pacific (DensArmor® Plus; U.S. Gypsum (FiberRoc® AquaTough™) Why PURPLE. With some mold-resistant drywall, this is accomplished by using a thicker paper facing and backing that is heavily saturated with a waxy substance that prevents moisture and air from getting at the paper. gypsum panels, up to 30% less weight; Lightweight 1/2 in. The core of the green board drywall is a thicker and more resilient version of the drywall's gypsum core, which allows it to withstand indirect moisture applications, such as the humidity in a bathroom or near a laundry room. Installation for mold-resistant drywall is identical to that for standard drywall. Green board is a paper-backed, water-resistant drywall that has a light green "hospital" tint. Specialty drywall panels are available with moisture-resistant and mold-resistant properties for installation on bathroom walls or in rooms with high humidity levels. To grow, mold spores require oxygen, moisture, and an organic food source. Don't use mold board on the ceiling as it will sag. She also enjoys writing business and finance, food and drink and pet-related articles. Essentially, drywall is gypsum pressed between two sheets of paper. Use a material other than paper for the outer layer on the drywall panels. It was developed to replace lath and plaster construction. Wallboard, drywall and cement board are widely available panel types contractors and homeowners use in new construction or remodeling projects. Green board features a thicker paper backing that has been treated with wax to give it extra resistance to moisture. As the lightest of their kind, these panels are easier to lift, carry and install and are ideal in new and remodel construction where moisture and mold … Glenda Taylor is a contractor and a full-time writer specializing in construction writing. It is an older form of water-resistant drywall that is gradually being phased out in favor of products that combine both moisture resistance and mold resistance. It should not be used as a replacement for cement board as a backing material for ceramic tile. 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. Mold and mildew growth have become a hot-button issue lately due to health concerns. Also, since it's more expensive than regular drywall, it should only be used where appropriate to cut down on extra costs. Mold remediation companies deal with eliminating mold/mildew, but it's always best to prevent mold before it starts. It is used for wet applications in tubs walls, shower walls, and floors. Panels of drywall are nailed or screwed to the bare framing, then the joints between panels are covered with drywall tape and finished with several coats of taping compound, which are lightly sanded between coats. While typical drywall uses standard paper, greenboards use a moisture-resistant, green-colore… Type X gypsum panels with moisture and mold resistance, up to 16% less weight; Lightweight 1/2 in. Green board is intended for use for ordinary wall applications in areas that experience constant high humidity, such as bathrooms and basements, but it does not have the superior mold-resistance of newer products. But need galvanized decking screws or roofing nails to install fiber ceme… Wallboard and drywall are different names for the same product. Preventing mold growth on drywall can be approached via two strategies: Increasingly, mold-resistant drywall is also marketed as moisture-resistant wallboard, and where manufacturers once offered two different drywall products—one for mold resistance, one for water-resistance—most products now incorporate both merits. Drywall vs. Plasterboard Sometimes the terms drywall and plasterboard are used interchangeably, but they're actually two different products. The backside is still plain paper. You can use tile backer board on the ceilings, but it will require taping the whole sheet instead of just joints for a smooth finish. Finishing my basement and getting ready to put drywall up in a few days. panel made of gypsum plaster sandwiched between thick paper Mold need water, oxygen and nutrients to grow. Kelly Bacon is a licensed general contractor with almost 50 years experience in construction, home building and remodeling, and commercial building. Moisture Resistant Drywall. Greenboard is a type of drywall rather than a brand name, as several different manufacturers make it. These are available in 4×8-foot and 3×5-foot sheets that are either 1/2 inch or 1/4 inch thick.Greenboards or blueboards, on the other hand, are types of drywall. The finish face side. Soundboard uses wood fibers to augment acoustics, while soundproof drywall has polymers that damp sound. Moisture exposure can occur during all phases of the construction process and through the building life cycle from roof, wall and pipe leaks, gross water penetration of the façade, vapor diffusion and condensation, and capillary rise. ... Water-resistant drywall works for ktichen backsplashes, but since you are starting from scratch anyway, tile backerboard is probably preferred. A paper sheet is an organic material, and it’s susceptible to mold when in constant contact with moisture, hence, … Deny mold spores the required air and moisture. moisture- and mold-resistant panel available. Since mold-resistant drywall is generally installed in humid locations, the best surface finish is with wall primer and paint that have good mildew and mold resistance. Right now the tile is attached directly to the dry wall. When sheetrock is used in the shower area it will most likely fail within 3-8 years due to the fact that it is moisture resistant and not water proof. Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 12 years. Compressed gypsum panels, covered with paper facing, install directly on wall studs. Green board is a paper-backed, water-resistant drywall that has a light green "hospital" tint. The key to minimizing mold growth is controlling moisture. Cement board,Sheetrock, more Drywall? moisture- and mold-resistant gypsum panels, up to 16% less weight; Lightweight glass-mat … Drywall is a ubiquitous material that is a common wall surface in both basic homes and in luxury construction. Hunker may earn compensation through affiliate links in this story. This product resists direct moisture, making it a top choice for installation in areas of high humidity. When installed in homes, it is often touted by real estate professionals as a selling feature. Answer + 29. x 4 ft. x 8 ft. Gypsum Board is the first and lightest 1/2 in. Cement board also comes in panels, but that's where its similarity to drywall ends.