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Underlay suitable for the floating installation of laminate and solid timber floors.

Features and benefits:

  • Sponge rubber.
  • Suitable for underfloor heating.

Standard product features

Nominal square weight:

2543 g/m².

Roll area:

15.07 m² (1.37 x 11 m).

Nominal roll weight:

38.3 kg.

Nominal thickness:

3.6 mm.


No objectionable odour.

Colour/ backing:

Gold/ nonwoven polyester backing.

Thermal resistance:

0.57 togs.

Impact sound reduction (Delta Lw):

23 dB.

Emissions (US Carpet and Rug Institute):

Meets low VOC emission criteria.

Antimicrobial and mildew resistance:


Technical characteristics:

  • Work of compression (minimum 50 J/m²): 55 J/m².
  • Retention of work of compression (minimum 40%): 74%.
  • Compression after dynamic loading: 2.2 mm.
  • Loss in thickness after dynamic loading (maximum 15%): 6.9%.
  • Loss in thickness after static loading (maximum 15%): 13.2%.
  • Resistance to cracking (not greater than 50 mm): Pass.
  • Breaking strength (length/ width, minimum 40N): 173/ 55 N.
  • Extension under force (length/ width, maximum 10%) @ 40N: 0.7/ 7.7%.

Acoustic Sone wood/ laminate flooring test:

Drum sound emission, overall loudness (Sone): 57.

Green credentials:

  • Recyclable: At the end of the underlay's useful life it can be 100% recycled. MR 2.0: points available. It can be recycled.
  • Recycled content: Contains not less than 3% post-consumer recycled material. MR 4.0: points available. Recycled content.
  • Indoor air quality: Meets or exceeds the industry standard for indoor air quality as established by the CRI Green Label Programme. IEQ 4.3: points available. Product is Green Label Plus certified.
  • Regional materials: Production Facility, Haslingden, BB4 4LS, UK. Where used within 500 miles of production facility, MR 5.0: points available.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-20-15/315 Cellular rubber underlays

Product specification

An important note about specifying



Interfloor Ltd


+44 (0)1706 238820

Product reference

Duratex, TADTX11013

Manufacturer details

Interfloor Ltd,
Lancashire, BB4 4LS
Tel +44 (0)1706 238820
Fax +44 (0)1706 214737
NBS Plus