Home > Companies > Custom Audio Designs Ltd > Metal Deck Acoustic Treatment Tecsound

A flexible, high density, visco-elastic polymer mass membrane. When combined with rock fibre or polyisocyanurate (PIR) insulation, it provides an inexpensive, high performance acoustic solution for flat roofing and built-up metal roofing systems such as standing seam roofs.


  • Excellent acoustic properties.
  • Enhanced low frequency performance.
  • Good flexibility at as low as -20°C.
  • Easy to cut and install on site.
  • Available as rolls to give fewer joints.
  • Fast installation.
  • Fully tested system.
  • Suitable for new build and refurbishment.
  • 100% recyclable.


  • Cinemas.
  • Airports.
  • Concert halls.
  • Stadia.
  • Retail and leisure developments, etc.

Related literature

The following content references this product:

Standard product features

Roll size:

1.22 x 6 m.


2.8 mm (±20 %).


5 kg/m² (±10 %).

Acoustic performance:

Refer to manufacturers data sheet.


1900 kg/m³.

Fire Rating:

Class O.

Thermal conductivity:

0.45 w/mK.

Tensile strength:

300 N/mm² to BS EN 12311.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-80-40/400 Sound attenuators

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Custom Audio Designs Ltd


+44 (0)1730 269572

Product reference

Metal Deck Acoustic Treatment Tecsound

Manufacturer details

5 Ridgeway Office Park,
Bedford Road,
Hampshire, GU32 3QF
Tel +44 (0)1730 269572
Fax +44 (0)1730 265846
NBS Plus