Construction Industry Wet Room Standard (BVN)

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

What Is BVN?

BVN (Byggebransjens Våtromsnorm) is a voluntary but widely recognized industry standard in Norway for wet room construction. It provides detailed guidelines on how wet rooms should be built to prevent moisture damage, ensure durability, and comply with best practices.

Why Was BVN Created?

Who Should Follow BVN?

Key Requirements in BVN

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

Approved Materials and
Installation Methods

  • 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.

Waterproofing & Moisture
Protection

  • 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.

Floor &
Wall Requirements

Floor & Wall 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.

Ventilation &
Air Quality

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.

Documentation & Final
Inspection

  • 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 BVN Compliances

At Våtromskoordinator, we specialize in ensuring full BVN compliance for wet room projects. Our team of experts guides homeowners, contractors, and businesses through every step of the process, from planning to final documentation.

Expert Guidance & Planning:

We review designs and materials to ensure BVN-approved solutions and provide pre-construction compliance consultations.

On-Site Inspections & Quality Assurance:

Regular inspections at critical construction stages to verify waterproofing, drainage, and sealing applications.

Documentation & Final Approval:

Preparation of FDV documentation and compliance certificates for insurance and long-term maintenance.

Post-Construction Support:

Ongoing consulting, troubleshooting, and maintenance guidance to ensure long-lasting compliance.

Benefits of Following BVN

Following BVN is not just about compliance—it provides several benefits that protect homeowners, contractors, and property managers:

01.

Reduced Risk of
Water Damage

  • BVN ensures all materials and installation methods are designed to prevent leaks, moisture buildup, and long-term structural damage.
  • Poor waterproofing can weaken walls and floors, leading to expensive repairs and unsafe conditions.
  • Properly sealed wet rooms reduce the risk of mold growth, which can cause allergies and respiratory issues.
  • A wet room built according to BVN standards lasts longer, requiring fewer renovations over time.
  • By following BVN standards, homeowners and contractors avoid thousands in repair costs due to water damage, mold, or improper drainage.

02.

Increased Insurance
Protection

  • Many insurance companies require BVN compliance before approving coverage.
  • Ensures that in the event of damage, insurance claims won’t be denied due to non-compliance.

03.

Higher
Property Value

  • BVN-certified wet rooms are more attractive to buyers due to their durability.
  • Homes and buildings with compliant wet rooms often receive higher valuations.

04.

Avoiding Legal & Warranty Issues

  • Non-compliant wet room installations can lead to costly legal battles between homeowners, contractors, and insurers, making BVN compliance essential for avoiding liability.
  • Wet rooms constructed without BVN-compliant methods may result in denied insurance claims, leaving homeowners financially responsible for costly repairs.

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.