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Isocheck Adjustable Acoustic Cradle System

Suspended system for uneven concrete floors with precise levelling capabilities

The Isocheck Adjustable Acoustic Cradle system is designed to reduce sound transmission through concrete floors. The Adjustable Cradle comprises an injection moulded recycled plastic adjustable thread and supporting ring to ensure precise levelling across uneven concrete sub-floors without the need for conventional packers. Additional elevating blocks are available for applications where extra height is required.

The Cradle is New Build Robust Detail compliant for masonry floor construction and where the structural sub floor has a camber or is irregular and needs levelling.

  • Applications: New build, conversions, in conjunction with underfloor heating systems, adjustable support for flat roof terraces
  • Adjustable Design: Injection moulded recycled plastic adjustable thread with supporting ring
  • Height Range: Minimum raise 20mm, maximum raise 56mm (without additional elevating blocks)
  • Robust Detail Compliant: Meets New Build Robust Detail descriptive FFT2
Adjustable Acoustic Cradle System Cradle Installation Cradle Cross Section

View more technical information and downloads

To be used over hollow core, in-situ or supported metal deck concrete floors for new build or conversions.

Key Applications:

  • New build residential and commercial developments
  • Conversion projects with irregular concrete floors
  • Integration with underfloor heating systems
  • Adjustable support for flat roof terraces

For project-specific acoustic design guidance, contact our technical team at technical@isomass.co.uk for our complimentary acoustic detail design service.

Treated floor meets with the New Build Robust Detail descriptive FFT2, typically within Robust Details E-FC-1, E-FS-1, E-FC-2 and E-FC-7.

Two typical alternative constructions:

  • 18mm or 22mm chipboard floor over Isocheck Adjustable Cradle with (commonly used) strength-graded 45mm x 45mm batten @ 400mm centres
  • Min. 150mm hollow core concrete plank min. 300kg/m² excl screed or 130mm min. in-situ concrete (80mm min. fully supported) on profiled metal deck
  • Metal frame suspended ceiling with 75mm void and 10kg/m² plasterboard or with 100mm void and 8kg/m² plasterboard
Overall size inc. resilient layer: 128.4mm diameter x 70mm height
Minimum raise*: 20mm
Maximum raise*: 56mm
Resilient layer: 100mm x 100mm x 6mm thick Isopoli HD
Cradle body: Recycled ABS

*Without additional elevating blocks

The acoustic floor shall be Isocheck Adjustable Acoustic Cradle system, 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.

Installation Procedure:

  • Lay Isocheck Adjustable Cradle on separate 6mm thick resilient layer and adjust to suit the floor. Screw fix the Cradle to the battens.
  • Lay 18mm or 22mm chipboard deck in brick bond pattern on timber battens (preferably stress graded) with all joints supported, applying adhesive to all tongued and grooved panel joints.
  • Apply Isocheck Acoustic Angled Flanking Band on the edges of the chipboard just before they are pushed against the perimeter walls to isolate the board from the wall.
  • Install skirting and trim off excess Flanking Band.

Full installation instructions are available and must be used in conjunction when laying this floating floor system.

For advice on treatment of services and penetrations, consult our brochure or visit our website.

Adjustable Cradle Detail
Cradle Cross Section
  • 18mm or 22mm chipboard floor over Isocheck Adjustable Cradle with a (commonly used) strength-graded 45mm x 45mm batten @ 400mm centres
  • Min. 150mm hollow core concrete plank min. 300kg/m² excl screed or 130mm min. in-situ concrete (80mm min. fully supported) on profiled metal deck
  • Metal frame suspended ceiling with 75mm void and 10kg/m² plasterboard or with 100mm void and 8kg/m² plasterboard
  • Acoustic flanking band at all perimeter junctions

Download datasheet

Download Adjustable Cradle Datasheet

Find Isocheck Adjustable Acoustic Cradle System on NBS Source for detailed specifications and BIM objects.

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