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Isocheck 32T & 37T

Acoustic floor system: direct to joists with a resilient bar ceiling

The Isocheck 32T and 37T acoustic floor systems are designed to reduce impact sound transmission through timber joisted floors. Both systems meet Approved Document E regulations and are suitable for different installation scenarios.

  • 32T System: For installations where both floor boards and ceiling have been removed
  • 37T System: For situations with limited ceiling access and additional fire protection requirements
  • Compliance: Meets Approved Document E 2003 and subsequent amendments (2004, 2010, 2013, 2015)
  • 32T Composition: 6mm reconstituted ACF + 4mm Isofiba, bonded to 22mm P5 V313 chipboard
  • 37T Composition: 10mm reconstituted ACF + 5mm Isofiba, bonded to 22mm P5 V313 chipboard

View more technical information and downloads

To be used over new or existing joists for refurbishments or conversions with a new resilient bar ceiling as illustrated or approved by Isomass (on application to technical@isomass.co.uk for our free acoustic detail design service).

Treated floor with: Isocheck 32T with a resilient bar ceiling

  • Site results (in red) for Building Control approval.
  • Laboratory results (in blue) for comparison.
Overall size: 2400mm x 600mm x 32mm
Resilient layer thickness: 10mm
Resilient layer material: 6mm reconstituted ACF - (Acoustic chip foam) and 4mm Isofiba
Weight: 23.0kg per sheet

Isocheck 32T acoustic flooring, supplied by Isomass Ltd. Unit 14 Papworth Business Park, Stirling Way, Papworth Everard, Cambridgeshire CB23 3GY and installed in accordance with manufacturer's instructions / recommendations.

Full installation instructions for Isocheck 32T are available as a pdf to download. Go to the Downloads tab on this page.

  • Isocheck 32T acoustic flooring.
  • 200mm x 70mm timber joists @ 450mm centres.
  • 100mm 45g/m3 insulation between joists (total ceiling mass 20kg/m2)
  • 20kg/m2 double boarded 25mm o/a plasterboard on resilient bars @ 400mm centres perpendicular to joist direction.
  • Acoustic flanking band reduces impact vibration leaking via structural walls and assists in reducing airborne sound paths

Download datasheet

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