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Moisture-Proof. Mold-Resistant. Built for Wet Zones.

Wetroom-Grade Gips Wall System

The Wetroom-Grade Gips Wall System is a moisture-resistant wall build-up specifically engineered for interior wet areas like bathrooms, laundry rooms, and technical spaces. This system combines mold-resistant gips boards with a sealed vapor barrier and compliant framing – forming a durable, water-resistant surface ready for tiling or final finishing.

Certified wall solution for bathrooms, laundry rooms, and humid environments

At Andronor, we install these systems using TEK17-approved methods and components that follow Norwegian SINTEF recommendations for wetroom performance. Each layer is carefully selected and applied to ensure long-term durability, safety, and hygiene – avoiding issues like rot, mold, or moisture migration.

Where to Use Wetroom Gips Wall Systems – Bathrooms, Laundry Rooms, and More

Wet areas require more than just water-resistant paint – they need an integrated wall system designed to resist moisture penetration, mold growth, and condensation-related damage. This system is ideal for both full renovations and new constructions, where regulatory compliance is a must.

Best For:

  • Shower and bathtub walls
  • Laundry rooms and technical utility zones
  • Bathrooms in apartments, cabins, or hotels
  • Commercial washrooms or locker rooms
  • Kitchen splash zones or damp basement areas

Wetroom Wall System Components – Framing, Membranes & Moisture-Resistant Boards

ComponentDescription or Option Range
Substructure / FrameworkMoisture-treated timber or galvanized steel CW/UW profiles (50–100 mm)
Surface LayerMold-resistant gips boards (e.g., Gyproc Glasroc H, Norgips Humidboard, Knauf Green Gips)
Barrier MembraneVapor-tight foil or plastic membrane, fully sealed to perimeter edges
Insulation (optional)Mineral wool for sound/thermal buffering where needed
Fasteners & AnchoringCorrosion-resistant screws and compatible wetroom fixings
Sealing ProductsButyl tape, sealing compound, and edge reinforcement tapes

All products used are CE-certified and conform to TEK17 and EN 13964/EN 13501 where applicable.

Installation Tips for Wetroom Gips Walls – Sealing, Framing, and Surface Prep

  • Full-Surface Sealing: Vapor barriers must be continuous behind fixtures and tiles
  • Framing Choice: Moisture-treated wood or galvanized steel preferred in all wet zones
  • Penetration Protection: Pipes, sockets, or niche cutouts must be fully sealed with collars or gaskets
  • Tile-Ready Surface: Surface boards compatible with tile adhesive systems
  • Ventilation Coordination: Ensures system dries properly and maintains air quality
  • Drainage Zones: Additional backing can be added behind wall-hung toilets or plumbing units

Andronor Tip:
Always pair this system with floor-to-wall joint sealing and pre-tiled floor prep to ensure full moisture control. For high-risk walls (e.g., behind showers), we recommend dual sealing with both foil membrane and waterproof surface board.

Wetroom Gips Wall Performance Levels – Moisture, Fire & Tiling Readiness

Wetroom-rated wall systems must perform across multiple risk zones – from splash-prone areas to steam-heavy environments. Below are tested variants:

VariantMoisture SuitabilityFire ResistanceTile-Ready
Mold-Resistant Gips OnlyModerate humidityEI30Yes
Gips + Vapor BarrierHigh humidity/wet zonesEI30–EI60Yes
Gips + Dual Membrane Sealing (full wrap)Continuous wet exposureEI60+ (if insulated)Yes (with prep)

All classifications based on manufacturer test assemblies (Gyproc, Norgips, SINTEF approvals). Documentation available on request.

Wetroom-Grade Wall Materials & Manufacturer Compliance

This system is built and installed in full compliance with:

  • TEK17 Wetroom Norms
  • EN 13501 fire resistance
  • EN 13964 system assembly for interior structures
  • NS 3510 and SINTEF Byggforsk Wet Room Guidance (for approved membranes and sealing)

Trusted material manufacturers:

  • Gips Boards: Gyproc Glasroc H, Norgips Humidboard
  • Membranes: Litex, Schluter, Weber WetGuard systems
  • Sealants: Dana Lim wetroom sealants, butyl-based tapes
  • Framing Profiles: Galvanized CW/UW 0.56–0.75 mm

Fixings: Corrosion-resistant screws

Completed Wet Zone Wall Projects

Professionally installed and fully sealed — our wetroom wall systems are already protecting bathrooms and laundry zones across Oslo and beyond.

Wet Zone Wall - Frequently Asked Questions

Yes – moisture-rated gips boards used in this system are made for direct tiling, once joints are sealed and primed.
Skipping the membrane leads to potential moisture migration into adjacent structures – causing mold, rot, or loss of warranty. We always include a full barrier for walls exposed to direct or indirect moisture.
For these zones, we upgrade to a dual-layer sealing system, like litex and coordinate with ventilation plans for full protection.
Absolutely. We often install this system above floor heating zones – just ensure all floor-wall transitions are sealed with expansion-safe materials.
Yes – we add internal plywood where extra load-bearing is needed for fixtures.

Ready to Install Your Moisture-Resistant Gips Wall System? Get a Standarts Compliant Wetroom Wall

Don’t risk moisture damage or failed inspections. Our certified wetroom wall system ensures long-term protection, performance - and peace of mind.