You can waterproof a wet wall, but you must fix the source of the moisture first. Simply painting over a wet wall traps moisture inside, which damages the brick, mortar, or drywall over time.
Solutions for Water Dampness in Walls
Limited Repairability. Repairing wet wall panels can be more challenging than replacing individual damaged tiles due to their design. Unlike tiles, where you can replace one or two damaged pieces, damage to a wet wall panel generally requires the replacement of the entire panel.
That said, wet wall panels are much easier and cheaper to replace than tiles, as well as require less effort to install. This makes installing a wet wall a great way to update and change the entire look of your bathroom suite.
Making a wet room waterproof
Fill in any holes and make sure the filler has had enough time to dry. Apply the first coat of primer to the wall using a brush and work in vertical strokes ensuring an even coverage. Work along the room from the floor to the ceiling. Allow the primer to dry for at least 6 hours.
The cheapest, most reliable way to waterproof shower walls for a tile finish is using mold-resistant greenboard (drywall), sealed with thin-set mortar and a flexible sheet membrane (like Curie). This method costs around $200−$250 in materials for a standard tub surround, compared to $800−$2,000 for professional installation.
Most waterproof wet room wall panels are manufactured using acrylic, PVC, or laminate. Using these materials means that the wet room wall panels will be strong, durable, and high-quality. Most DBS Bathrooms wall panels are designed using high-quality PVC.
In high-moisture environments like bathrooms, Wetwall may need to be replaced sooner if it is not maintained properly. However, if you take care of the Wetwall by cleaning it regularly and ensuring that the installation remains intact, it can easily last for two decades or more.
Yes, you can put tile directly on drywall, but only in dry areas (like kitchen backsplashes or feature walls). Never use drywall in wet areas like showers or tub surrounds.
Wet wall (or shower and tub panel) prices typically range from $300 to $1,500 per kit or sheet, depending on the material and size. Factoring in materials, installation, and associated trim/adhesives, you can expect average total project costs to land between $11 and $20 per square foot.
Mold can start growing on wet drywall within 24 to 48 hours. Prompt action is necessary to prevent health risks associated with mold exposure. Water damage can lead to serious health hazards if not addressed timely. Drywall affected by water damage requires immediate attention.
If you are looking for an alternative to traditional drywall, PVC wall panels (like Trusscore or Duramax) are a leading modern replacement. They install up to four times faster than gypsum boards because they eliminate the need to mud, tape, sand, or paint.
It's hard to give a definitive answer as to how much a wet room installation costs in the UK, but it will likely fall within the region of £4,000 to £10,000. Whilst wetrooms are undoubtedly bathroom goals, they can be expensive because your entire bathroom will essentially need redoing.
The most affordable waterproofing method is the use of basic acrylic waterproof coatings. However, these coatings may not last as long as premium waterproofing solutions.
Materials that are considered 100% waterproof typically include synthetic polymers and coated fabrics that create an impermeable barrier to water, such as PVC (vinyl), silicone-coated nylon/polyester (silnylon), rubber, and polyurethane laminates. These materials do not allow water to pass through, making them ideal for tents, rain gear, and coverings.
Avoiding common basement waterproofing mistakes can save you time, money, and frustration down the road.
You could use standard drywall repair methods for the vertical gaps at the edge of the tile. Tape the seam, texture to match, paint. Another option might be to use some type of pencil trim tile. You might find some that matches your tile or some that would contrast well.
Yes, thinset will stick to painted drywall, but only if you properly prepare the surface first. Because paint is a weak, non-porous layer, applying thinset directly to bare paint can lead to the tiles popping off over time.
Using Lightweight Tiles: Smaller ceramic or porcelain tiles (under 12 inches) are better suited for drywall surfaces. Heavier tiles may require additional support, such as cement backer board, to prevent them from pulling away over time.
Apply the sealant evenly along the joints, edges, and seams. Use a sealant finishing tool or a wet finger to smooth the sealant after application, ensuring it fully fills the gaps and adheres to the surfaces. This also creates a clean, professional finish. Allow the sealant to cure fully before exposing it to water.
Our patented tongue-and-groove panels fit and lock into existing spaces to quickly go over various substrates — gypsum (sheetrock), greenboard, fiberboard, cement or concrete board, plaster, and, of course, even tile.
How thick is a Wetwall panel? Elite Collection Panels are 10mm thick, Mermaid Collection Panels are 11mm thick, Alloy Collection Panels are 4mm thick and Tile Collection Panels are 3mm thick.
Plastic paneling is very easy to install, making it an easy drywall alternative to recommend. You can simply screw most plastic paneling into place and you will be able to cover up walls directly. You can put them right over the studs, so it's really convenient overall.
Care & Maintenance
Warm soapy water and a sponge will be adequate for regular maintenance. Common non-abrasive household cleaners can be used with a soft sponge or cloth. With all cleaners, rinse immediately. Wetwall has no grout lines to clean, and is non-porous, so sealing is never required.
Top alternatives to shower tile include solid surface panels (like Corian or Swanstone), acrylic surrounds, laminate panels, PVC, and cultured marble. These options offer seamless or low-grout, waterproof, and easy-to-clean alternatives to traditional tile, with popular brands including FlexStone, Castico, and Onyx. Many are suitable for DIY,, with panels that can be glued directly over existing surfaces or green board.