Acoustic Systems For Timber, Composite & Steel Floors
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Isocheck PRIMO 26, 30 & PRIMO HL

Acoustic flooring systems: for use in new build and older timber and steel frame construction

Isocheck PRIMO acoustic flooring systems are designed to reduce sound transmission through traditional / composite timber / steel joisted floors within new build and older light weight frame constructions.

Isocheck PRIMO 26 consists of a 8mm layer of melamine-free APF bonded to 18mm P5 V313 moisture resistant chipboard. Isocheck PRIMO 30 consists of a 8mm layer of APF bonded to 22mm P5 V313 moisture resistant chipboard.

When installed as part of a complete party floor construction the system enables a timber floor to meet the sound transmission standards of Approved Document E 2003 and subsequent amendments in 2004, 2010, 2013 and 2015.

View more technical information and downloads

To be used over a timber deck and traditional / composite timber / steel joisted floors for conversions or new build timber frame with a decoupled ceiling as illustrated or approved by Isomass (on application to technical@isomass.co.uk for our free acoustic detail design service ).

Treated floor with: DnT,w+ Ctr
 L’nT,w
PRIMO 26, 30 or HL (timber frame)
PRIMO 26, 30 or HL (steel frame)		 ≥ 45dB
≥ 45dB
 ≤ 62dB
≤ 62dB
Overall size:
PRIMO 26
PRIMO 30
PRIMO HL		 2400mm x 600mm x 26mm
2400mm x 600mm x 30mm
2400mm x 600mm x 23mm
Resilient layer:
PRIMO 26 & 30
PRIMO HL
 8mm APF
5mm Cross linked Isopoli
Weight:
PRIMO 26
PRIMO 30
PRIMO HL
 18.8kg per sheet
23.0kg per sheet
18.8kg per sheet

PRIMO & PRIMO HL systems, 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 PRIMO and PRIMO HL are available as a pdf to download. Go to the Downloads tab on this page.

Isocheck PRIMO 30 timber frame product data sheet

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Isocheck PRIMO 26 & 30 product data sheet

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Isocheck PRIMO HL product data sheet

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Isocheck PRIMO 30 timber frame installation instructions

DOWNLOAD

Isocheck PRIMO 26 & 30 installation instructions

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  • Isocheck PRIMO 26 or PRIMO 30 over floorboards.
  • 200mm x 70mm joists @ 450mm centres with100mm 45kg/m3 insulation between joists.
  • 20kg/m2 double boarded 25mm o/a plasterboard on resilient bars @ 400mm centres perpendicular to joist direction. or
  • Isocheck PRIMO 30 over floorboards.
  • 250mm x 50mm joists @ 450mm centres with100mm 45kg/m3 insulation between joists.
  • 22kg/m2 double boarded 28mm o/a plasterboard.
  • Isocheck PRIMO 30.
  • OSB sub floor.
  • Traditional timber, steel or composite wood joists.
  • 100mm insulation between joists.
  • 24kg/m2 double boarded 25mm o/a plasterboard on resilient bars @ 400mm centres perpendicular to joist direction.
  • min. 100mm void formed by metal frame suspended ceiling system plus ≥7kg/m2 gypsum board ceiling.
  • Isocheck PRIMO HL over floorboards.
  • 200mm x 70mm timber joists @ 450mm centres.
  • 100mm 45kg/m3 insulation between joists.
  • 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.

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