XPS Insulation Boards
Rigid extruded polystyrene (XPS) boards with a fine closed-cell structure, made for applications that need high compressive strength together with very low water absorption — floors, foundations, roofs and cold-storage floors.
Key advantages
- High compressive strength — carries construction and service loads.
- Very low water absorption and good freeze-thaw resistance.
- Closed-cell structure keeps thermal conductivity stable over time.
- Dimensionally stable and easy to cut on site.
- Surface and edge options: smooth or grooved, square or shiplap edge, foil-faced.
Technical data
| Thickness | 20 – 150 mm |
|---|---|
| Board size | 600×1200 mm, 600×1800 mm, custom sizes |
| Density | 28 – 45 kg/m³ |
| Thermal conductivity | λ 0.028 – 0.035 W/(m·K) |
| Compressive strength | 150 – 500 kPa |
| Water absorption | below 1.5 % by volume |
| Fire rating | B1 / B2 |
Exact values for a specific batch are provided on request, together with the test report.
Applications
- Roof insulation, including inverted roofs
- Underfloor heating and floating floors
- Cold-storage and freezer room floors
- Basement, retaining and foundation walls
- Road, railway and load-bearing embankments
Frequently asked questions
Can XPS be used for a cold-storage floor?
Yes, that is one of its main uses — the board carries the load and does not take up moisture. The thickness is selected from the thermal calculation and the floor loads.
Which grade should I use under heavy loads?
Higher-density, thicker boards are used for loaded floors. Send the project or the load figures and we will propose a grade, with the batch test report where required.
Do you make non-standard board sizes?
Yes — sizes and cutting patterns are agreed individually, including cutting plans matched to your laying pattern.
Need a price or a sample?
Send us the sizes and the quantity — we will come back with pricing and lead time within 24 hours.