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
Base unit	Roll
Product weight	2407 g/m²
Product dimensions (Length)	11 m
Product dimensions in m2	15.07 m²
Thickness	3 mm
Density	802 kg/m³
Material	Sponge rubber
Brand	Duralay
TOG rating	0.35 TOG
Suitable for underfloor heating	Yes
Suitable for floor cooling	Yes
CS	CS4
CS/CC (compressive Strength / Compressive Creep)	400
CS/CC (compressive Strength / Compressive Creep) - unit	kPa
Domestic use	Yes
Project use	Yes
Laying method	Floating
Product dimensions (Width)	1.37 m
Product dimensions (Unit)	m²
Type of base floor	Wooden floor / Fixed sand cement floor / Floating screed
Thermal resistance - R-value (Test method: ISO 8302)	0.035 m² K/W
Sound-reducing ΔLw (Test method: NEN-EN ISO 717-2)	21 dB ΔLw
CS/CC (Compressive Strength / Compressive Creep)	400
CS/CC (Compressive Strength / Compressive Creep) - unit	kPa
Laying direction	Perpendicular to the installation direction of the upper floor. Prevent the seams of the underlay and the upper floor from aligning.