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All About Schluter KERDI-SHOWER Systems

Updated: Sep 1

What is KERDI? What are the advantages?


Schluter designed KERDI, a full waterproofing system that may be used to waterproof showers and other tiled surfaces exposed to water or steam.


Waterproof membranes, boards, seals, drains, and prefabricated substrates from KERDI can be combined to create a complete shower or added to a mortar bed or "hot-mop" application to offer full waterproofing to a more traditional system.


All KERDI components are waterproof and may be tiled directly over, preventing moisture from infiltrating the materials below and allowing the tile and grout above to dry entirely.

Our team members are quite experienced in this area, having attended numerous courses to further their waterproofing knowledge.


Water is the biggest threat to a house's structural integrity, and no room exemplifies this more than the bathroom, where moisture is a recurring issue. Bathrooms and kitchens undergo renovations more frequently than other rooms in the house because even a small amount of water seeping beneath the surfaces of the walls, counters, and floors soon starts to degrade the installation.


The foundation of any effective, long-lasting bathroom remodeling project is an effective, comprehensive system of moisture prevention. A bathroom's waterproofing quality can make the difference between one that lasts for years while looking wonderful and performing well and one that degrades quickly and succumbs to mold and mildew.


Here are some pointers for designing and carrying out bathroom renovations that withstand moisture damage:


Use Waterproof Building Materials


For the majority of rooms in the house, utilizing natural, plant-based building materials like wood, bamboo, paper, or jute can be a great choice, but it is not advised for spaces with a lot of moisture, like bathrooms. Stone, metal, plastic, and ceramic or porcelain tiles are excellent options for bathrooms because they are not impacted by moisture. These materials tend to be more moisture resistant than organic ones and won't rot or deteriorate when exposed to moisture.


Make sure the backer board is made of high-quality waterproof material and is properly sealed if you are tiling a shower or tub surround. For tiled floors, the same waterproof backer board is an excellent option. Use specialized wallboard with a waterproof front for non-tiled walls instead of the organic paper-facing present in conventional wallboard.


Hire a Pro for the Plumbing


Plumbing pipe installation mistakes can cost thousands of dollars in damage even if they are very small and inconspicuous. While contemporary materials like PEX tubing make DIYers' jobs easier, you don't want to take any chances in this area. Consider hiring a contractor to handle the plumbing rough-in work if you are not completely sure of your abilities. Even if you do all other bathroom remodeling jobs, having the plumbing work done by a professional who is familiar with all code requirements can provide you with added peace of mind.


Provide Access to the Plumbing


Even if it isn't required, it is always beneficial to have a service panel that allows access to the plumbing for the bathtub or shower from the back. To inspect and repair the water supply pipes from the back, a hole can be made in the wall if the space on the opposite side of the wall allows it. Working on plumbing in this manner is simpler than removing the front tile.


Install a Ventilation Fan


Installing a large bathroom exhaust fan is one way to remove the wet air from the space. Bathroom fans are required by building code to exhaust a minimum of 50 cubic feet per minute (CFM) intermittently and 20 CFM continuously, but if the bathroom is big, you might want a stronger fan.


Some exhaust fans have infrared heat lamps as well, which can help to burn off moisture in a bathroom. Or, to aid with moisture, you can install a stand-alone heater. To avoid the growth of moisture and mold in bathrooms, it's a good idea to leave the exhaust fan running for 10 minutes after each usage.


Use Tile as a Wall Surface


The effects of water will be almost completely resistant to walls covered in ceramic or porcelain tiles. These tiles have been used for shower and bathtub surround walls for a very long time, but in contemporary bathrooms, they are frequently employed as a surface material for wainscoting, backsplashes, or even complete walls.


Install a Waterproof Floor


Hardwood, engineered wood, and bamboo are some of the traditional organic flooring options for bathrooms, but they don't perform all that well, especially in bathrooms used by families with children who are quite active. Plastic laminate flooring could seem like a nice option, but it typically has a core layer made of wood byproducts, making it easily vulnerable to water damage.


Ceramic and porcelain tiles are a timeless option for bathrooms and are now offered in designs that can be surprisingly good at imitating wood planks and other materials. Excellent alternatives include luxury vinyl planks and tiles. This particular type of vinyl is completely waterproof because it is comprised entirely of solid inorganic material