Schlüter KERDI 200 Waterproofing Membrane Range

The Schlüter KERDI 200 range is a professional-grade bonded waterproofing and vapour-retardant membrane system, engineered for superior moisture protection beneath ceramic tiles and natural stone. Constructed from durable polyethylene (PE) with fleece webbing on both sides, it ensures strong adhesion with thin-bed tile adhesives and long-term waterproof reliability across walls, floors, and other wet area installations.

Available Variants

  • KERDI 200 (1 m width) — Perfect for smaller walls, niches, and detailed installations
  • KERDI 200 200 15 (2 m width) — Ideal for large wall areas and fast, joint-free coverage

Both variants provide identical waterproofing strength and flexibility. The difference lies only in the width and surface coverage, allowing installers to choose the most efficient format for their project.

Key Benefits

  • Complete waterproof and vapour-retardant protection for wet areas
  • Crack-bridging and flexible, ensuring long-lasting durability
  • Lightweight and easy to cut, fit, and install
  • Compatible with Schlüter-KERDI-KEBA, KERDI-COLL, and KERDI-BOARD systems
  • Ideal for showers, wet rooms, bathrooms, and tiled floors

Technical Specifications

Property Specification
Material Polyethylene (PE) with fleece webbing on both sides
Colour Orange
Thickness Approx. 0.2 mm
Available Widths 1 m or 2 m
Available Lengths W:1m (1m to 3m) | W:2m (1m to 15m)
Weight Approx. 200 g/m²
Temperature Resistance −40 °C to +80 °C
Water Vapour Diffusion (SD) ≥ 5 m (vapour-retardant)
Suitable Substrates Concrete, screed, cement boards, plasterboard, and stable surfaces

Installation Overview

  1. Ensure the substrate is flat, clean, and load-bearing.
  2. Apply a cement-based thin-bed tile adhesive using a 4 × 4 mm notched trowel.
  3. Embed the KERDI membrane into the adhesive, smoothing out air pockets.
  4. Overlap sheets by at least 5 cm and seal with KERDI-KEBA or KERDI-COLL.
  5. Tiles can be installed directly after curing using standard adhesives.

Typical Applications

  • Showers, bathrooms, and wet rooms
  • Steam rooms and spa facilities
  • Kitchens and utility areas
  • Balconies and terraces (with suitable coverings)

System Compatibility

Schlüter KERDI 200 integrates seamlessly with other Schlüter waterproofing components such as KERDI-BOARD, KERDI-KEBA, KERDI-COLL, and KERDI-DRAIN. The full system approach ensures watertight reliability and consistent performance throughout the installation.

Frequently Asked Questions (FAQs)

What is the difference between KERDI 200 and KERDI 200/15?

Only the width differs. KERDI 200 is 1 m wide, ideal for compact areas, while KERDI 200/15 is 2 m wide for larger surfaces. Both deliver identical waterproofing and durability.

Can KERDI 200 be used with underfloor heating?

Yes. It’s compatible with heated flooring systems when installed following Schlüter guidelines, providing excellent thermal and moisture protection.

Is KERDI 200 fully vapour-proof?

It’s classified as vapour-retardant (SD ≥ 5 m), suitable for standard wet rooms and bathrooms. For steam rooms, consult Schluter’s technical documentation.

Which adhesive should be used?

A high-quality, cement-based thin-bed tile adhesive is recommended. Avoid solvent or dispersion-based adhesives.

Do I need any special tools for installation?

No — regular tiling tools such as a notched trowel, roller, and utility knife are sufficient for a professional result.