A specialized underlayment with low thermal resistance, providing a warm feel to any floor. Suitable for laminate and parquet. Duralay Heatflow underlays all feature lower thermal resistance, allowing warmth generated by underfloor heating to quickly permeate the room. They conduct more heat than other underlays, making them the ideal choice for underfloor heating systems, resulting in enhanced heating capacity and potential energy savings. The unique production techniques by Interfloor enable the manufacturing of underlays with higher thermal conductivity and thus lower resistance than standard options, while maintaining essential qualities of comfort and floor protection. The low thermal resistance makes it ideal for wood and laminate floors combined with underfloor heating. Resilient high-density rubber reduces sound within the room and prevents overload of the joints in wood and laminate flooring.
| Floor type |
Parquet / Laminate |
| Product weight |
2407 g/m² |
| Product dimensions (Length) |
11 m |
| Product dimensions Width (Unit) |
m |
| Product dimensions in m2 |
15.07 m² |
| Base unit |
Roll |
| Thickness |
3 mm |
| Density |
802 kg/m³ |
| Material |
Sponge rubber |
| Brand |
Duralay |
| Thermal resistance - R-value |
0.035 m² K/W |
| TOG rating |
0.35 TOG |
| Suitable for underfloor heating |
Yes |
| Suitable for floor cooling |
Yes |
| CS |
CS4 |
| CS/CC (compressive Strength / Compressive Creep) |
400 kPa |
| Domestic use |
Yes |
| Project use |
Yes |
| Laying method |
Floating |
| Product dimensions (Unit) |
m² |
| Type of base floor |
Wooden floor / Fixed sand cement floor / Floating screed |
| Sound-reducing - ΔLw |
21 dB ΔLw |
| CS/CC (Compressive Strength / Compressive Creep) |
400 kPa |