våtroms

Våtrom is a Norwegian term for rooms where water use and moisture are expected, such as bathrooms, shower rooms, laundry rooms and other utility spaces. These rooms are designed and built with enhanced moisture protection to prevent water damage and mold growth.

Key design features include a waterproofing system for floors and walls, a slope toward drains, sealed corners, and vapour barriers behind finishes. Waterproof membranes or liquids are installed on all surfaces that come into contact with water, with joints around fixtures carefully sealed. Drainage must be properly integrated, and adequate ventilation helps control humidity and prevent condensation.

Regulatory status: In Norway, våtroms are subject to technical requirements in the planning and building regulations, including TEK. The widely used Våtromsnormen, published by Byggforsk, provides detailed guidance on moisture protection, material choices, installation methods, and testing. Work on våtrom is typically carried out by qualified professionals such as plumbers and tilers, and inspections may be required by authorities or insurers.

Common issues and maintenance: Problems often arise from insufficient waterproofing or poor finishing, leading to water intrusion, rot and mold. Regular inspection of seals, drainage, ventilation and moisture levels helps prevent damage. Proper maintenance and timely repairs reduce long-term costs and health risks.