TEK17: Technical Regulations
for Building Works

BVN ensures quality in wet room construction – but what does it mean for you?

What Is TEK17?

TEK17 (Byggteknisk forskrift 2017) is Norway’s mandatory set of building regulations that define the minimum technical requirements for all construction projects, including wet rooms. It is legally binding and applies to all new builds, renovations, and refurbishments.

Why Is TEK17 Important?

Who Should Follow TEK17?

Key Requirements in TEK17

TEK17 outlines strict standards for how wet rooms should be designed and built. Below are the most critical aspects:

Moisture-Proofing &
Waterproofing

  • Only BVN-approved waterproofing systems can be used.
  • All membranes, adhesives, and sealants must meet moisture resistance standards.
  • Tiles and flooring materials must be suitable for wet room use.

Drainage &
Slopes

  • Membranes must be installed correctly to prevent leaks.
  • Joints, seams, and penetrations must be fully sealed to prevent water infiltration.
  • Drain connections and slope requirements must be followed to ensure proper drainage.

Ventilation &
Air Quality

  • Wet rooms must have proper ventilation systems to reduce humidity and mold risks.
  • TEK17-compliant exhaust fans should be used to maintain air quality.

Accessibility & Minimum Space
Requirements

  • The floor must have the correct gradient to guide water towards the drain.
  • Flooring must be connected properly to the wall to prevent water seepage.
  • Walls should use materials that prevent long-term moisture damage.

Materials & Surface
Requirements

  • Every wet room project should include FDV documentation (Forvaltning, Drift, Vedlikehold).
  • A final inspection report must be completed to verify compliance with BVN standards.

How We Help Ensure TEK17 Compliances

At Våtromskoordinator, we specialize in helping homeowners, contractors, and developers navigate TEK17 compliance with ease.

Planning & Consultation:

Assess your wet room design and ensure compliance with TEK17 regulations.

Inspections & Quality Checks:

Verify waterproofing, drainage slopes, and ventilation standards during construction.

Documentation & Approval:

Provide TEK17 compliance reports and required FDV documentation.

Post-Project Support:

Offer maintenance guidelines and long-term consulting to prevent issues.

Benefits of Following TEK17

Following TEK17 isn’t just about legal compliance—it offers practical benefits that enhance safety, durability, and property value.

01.

Legal Compliance &
Risk Reduction

  • TEK17 regulations guarantee that all wet rooms meet official building codes, preventing costly legal issues.
  • TEK17 applies to all new constructions, major renovations, and upgrades, ensuring modern safety and efficiency standards are met.
  • Projects that fail to meet TEK17 guidelines may require expensive rework, delayed approvals, or failed inspections.
  • Municipalities and regulatory bodies require TEK17 compliance for project approvals, ensuring that all wet rooms meet structural and safety regulations.
  • Proper documentation and compliance with TEK17 can enhance property value, making buildings more attractive to buyers and investors.

02.

Long-Term Durability & Moisture
Protection

  • Reduces risks of mold, leaks, and structural decay.
  • Ensures all materials and installations withstand heavy use. Prevents expensive repairs

03.

Better Insurance Coverage &
Property Value

  • TEK17-compliant properties attract higher buyer confidence.
  • Ensures wet rooms meet insurance coverage requirements.
  • Avoids expensive legal and repair costs in the future.

04.

Improved Accessibility & Safety

  • TEK17 ensures wet rooms are built to accommodate all users, including wheelchair accessibility and maneuvering space.
  • Proper anti-slip materials, stable surfaces, and correct drainage slopes reduce the risk of accidents.

Need expert guidance?
Contact us for consultation

Let our experts handle it. We ensure that your wet room is built right the first time, avoiding future problems.