Cellecta Hexatherm XFLOOR 250 20mm Floor Boards

20mm Cellecta Hexatherm XFLOOR 250 insulation boards are high-strength XPS floor insulation boards featuring a closed-cell structure that delivers exceptional water resistance. Engineered for domestic, commercial, and educational floor applications, these boards provide robust thermal performance whilst managing heavy loads and moisture exposure effectively.

Suitable for numerous domestic, commercial and educational building projects across the UK, 20mm Hexatherm XFLOOR 250 boards offer dependable thermal insulation and moisture protection in challenging flooring scenarios.

Looking to buy the XFLOOR 250 x 1250mm version ? Please visit XFLOOR 250 x 1250mm

Pack Information

In certain areas of the UK, we can supply individual Cellecta XPS boards, while in others, orders must be placed in full pack quantities. Please contact us to request a quote

Pack Size & Coverage

1. Brand name: HEXATHERM XFLOOR 250
2. Board Width: 600mm
3. Board Length: 2500mm
4. Pack Quantity: 20 sheets / 1 sheet In certain areas of the UK
5. Board Coverage: 1.5m2
6. Pack Coverage: 30m2
7. Density: 34kg/m3
8. Weight: 1.44kg
9. Thermal Conductivity: 0.033W/mK
10. R-Value: 1.21m2K/W
11. Material: CO₂ blown extruded polystyrene
12. Thermal conductivity (W/mK): 0.033 ≤ 80mm, 0.034 ≥ 81mm
13. Strength at 10% compression (kPa): 250
14. Strength at 2% compression (kPa): 80
15. Long term water absorption by immersion: 0.7%
16. Edge profile: Square edge

Key Characteristics

• High compressive strength – engineered to resist significant point loads
• Water-resistant with a closed-cell structure, suitable for moisture-prone areas
• Ideal for basement floors and other ground-bearing applications
• Environmentally friendly: Global Warming Potential (GWP) 5, blown with reclaimed CO₂, and 100% recyclable
• Sustainable compliance: fully meets the Code for Sustainable Homes POL 1 requirements
• Long-term thermal performance for efficient energy savings
• Super low U-values achievable for optimal insulation performance

20mm XFLOOR insulation boards are available in a range of thicknesses from 20mm to 30mm, which are ideal for a variety of floor requirements such as on suspended beam and block floors, above-ground bearing concrete floor slabs and basements.

Info

Browse our Cellecta insulation range for comprehensive solutions. We deliver across the entire UK Mainland. For project-specific advice or bulk pricing quotations, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK XPS Insulation Prices near me.