In a shower built with the Schluter-KERDI system, standard drywall is a perfectly acceptable substrate for the walls. Because the KERDI membrane is a high-performance, waterproof, and vapor-retarding material, it creates an impermeable barrier that keeps moisture entirely away from the wall structure. The system essentially 'seals' the drywall, preventing it from ever being exposed to the water that permeates the tile and grout. This method is highly effective, provided the installation is performed correctly. The drywall must be solid, clean, and free of dust, and the membrane must be bonded using the specific thin-set mortar recommended by Schluter. By using this combination, you eliminate the need for heavy, moisture-prone cement boards, creating a lightweight and durable base for the tile. Always follow the manufacturer's installation handbook to ensure your setup meets the necessary building standards.
Key considerations
- can you put KERDI over drywall
- waterproofing drywall shower
- Schluter-KERDI installation
- Drywall
- Waterproofing
- Schluter