Introducing the Komfort KOC20 Cement XPS Overlay Panel which are designed to provide superior insulation and support for underfloor heating systems. Available in a 20mm thicknesses, these boards are made from 400 KPA extruded polystyrene (XPS), offering excellent thermal insulation and compressive strength. Both sides of the board are coated with a durable cement layer, providing a stable surface suitable for direct application of marble, stone and tiles or levelling compounds for other floor coverings. We recommend priming the boards before laying tiles, marble or stone directly on top.
Choose Komfort KOC20 Cement XPS Overlay Panel for a reliable and efficient underfloor heating solution. Their high-strength insulation, durable cement coating, and easy installation make them an excellent choice for achieving optimal heating performance in both residential and commercial applications.
TECHNICAL DATA:
- Total Dimensions: L1200 x W600 x H20mm
- Compression Strength: XPS 400kPa
- Pipe Centres: 150mm
- Suitable Pipe Size: 16mm
- Thermal conductivity: 0.034W/mK
- Water Absorption: 0.6%
- Temperature Range: -50°C to 70°C
- Fire Performance: Class 0 / Euro Classification E
- USP: Omega grooves for easy installation
- Suitable Floor Coverings: Tiles can be laid directly, or a 10mm levelling compound can be used for other floor coverings.
How many boards do you need? Calculation Example: 20m2 divide by 0.72 = 28 Panels.
Key Features:
- Material: High-density extruded polystyrene with reinforced cement coating.
- Strength: Excellent impact and compressive strength.
- Cutting: Can be easily cut using conventional tools.
- Bonding: Exhibits good bonding properties for cement-based tile adhesives (Note: Solvent-based products must not be used).
- Moisture Resistance: Ideal for installation in wet areas like bathrooms, where moisture exposure is common.
Floor Coverings / Finishes:
- Tiles and Stone: Tiles can normally be fixed directly to the cement-coated surface using a flexible tile adhesive after priming where required.
- Laminate and Engineered Wood : A minimum of 7 mm thick flexible, cement-based levelling screed is required.
- LVT, Vinyl and Carpet: These floor finishes should not be installed directly onto the boards. Prime the surface and apply approximately 10mm of fibre-reinforced self-levelling compound before laying the final floor covering. For carpet installations, the combined carpet and underlay rating should not exceed 2.0 tog.
- Supporting Floor Surface: The KOC20 overlay board cannot be laid directly onto joists; it must be installed on a supportive floor surface, such as plywood or floor-grade chipboard.
Usage Recommendations: Ideal for applications in areas with high moisture, the KOC20 Overlay Panel is a versatile solution for enhancing flooring systems while providing essential moisture protection and structural support.
Heat Outputs for Poor and Good Insulated Properties
Heat Outputs (Good Insulated Properties)
| Floor Finish | @ 35°C Flow | @ 40°C Flow | @ 45°C Flow | Max Surface Temp |
| Ceramic/Porcelain/Stone | 70-78°C | 90-100°C | 115-128°C | 29°C |
| Polished Concrete/Microcement | 68-75°C | 88-98°C | 112-125°C | 29°C |
| LVT/Vinyl/Linoleum | 60-68°C | 78-88°C | 98-110°C | 27°C |
| Laminate/Engineered Wood | 50-58°C | 65-75°C | 82-92°C | 27°C |
| Solid Wood (<18mm) | 45-52°C | 58-68°C | 75-85°C | 26°C |
| Carpet <1.5 tog | 44-50°C | 56-65°C | 72-80°C | 26°C |
| Carpet 1.5-2.0 tog | 38-45°C | 48-56°C | 62-70°C | 25°C |
Heat Outputs (Poor Insulated Properties)
| Floor Finish | @ 35°C Flow | @ 40°C Flow | @ 45°C Flow | Max Surface Temp |
| Tile / Porcelain / Stone | 65-72°C | 85-95°C | 110-120°C | 29°C |
| Polished Concrete / Microcement | 62-69°C | 82-92°C | 105-115°C | 29°C |
| LVT / Vinyl / Linoleum | 55-62°C | 72-82°C | 92-102°C | 27°C |
| Laminate / Engineered Wood | 46-53°C | 61-70°C | 78-88°C | 27°C |
| Solid Wood (<18mm) | 41-48°C | 54-62°C | 70-78°C | 26°C |
| Carpet + Underlay <1.5 tog | 40-46°C | 52-60°C | 68-76°C | 26°C |
| Carpet 1.5-2.0 tog | 34-40°C | 44-52°C | 58-66°C | 25°C |
