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Separating Floor Solutions
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E-Cousti Joist Cap Solution

Link: Technical Installation Guide.

E-Cousti Sound Reduction Performance
Airborne
RwdB
63
RwdB+Ctr
51
Impact
L’nw dB
55
*
Part E Acoustic Requirement: New Build
Airborne 45 DnT,w+Ctr dB
Impact 62 L’nT,w dB
*
Part E Acoustic Requirement: Refurbishment
Airborne 43 DnT,w+Ctr dB
Impact 64 L’nT,w dB

Benefits

  • No sub deck required prior to installation reducing floor height and saving labour. provides
  • Excellent performance in excess of Approved Document E requirements.
  • Very lightweight and easy to handle with simple installation process.
  • Shallow footprint reduces brick
    coursing compared to some timber floor solutions.

  • The option of 19mm plank within the system offers even greater peace of mind.

Typical applications

  • Separating floor for apartments, hotels, student accommodation, care homes etc for both new build and refurbishment applications.
  • Ideal if floor heights are an issue, or on existing buildings where floor boards need to be replaced.

*Further improvements can be made by placing 19mm Gypsum based plank over the Joist Cap before installing the chipboard.
During on-site testing a 1dB improvement in airborne sound and impact sound was noted.

Components and Fixing Data:

•  1 x 18mm P5 Tongued and Grooved Chipboard
  
 (glued to)

•  Joist Cap
(friction fitted)

•  220mm Timber Joists at 400mm centres
   (can be used on traditional joists and I-Beam joists)

•  100mm 45kg/m3 Mineral Wool
(between joists)

•   Resilient Bars
(at 400mm centres)

•  2 x 15mm Acoustic Plasterboards
   (nominal density 12.5kg/m3 per board)

•  Perimeter sealed with
E-Cousti Ecostrip

E-Cousti Fix & Seal must be used to ensure the
   acoustic integrity of the construction



Illustration 1Illustration 2

Technical Data:    

Application Separating Floor
Mass per Unit Area 53 kg/m3
Depth 283mm
Fire Protection 60 minutes
Certification Sound reduction index to BS EN ISO 140-3: 1995 Rating according to BS EN 140-6: 1998
  Rating according to BS EN ISO 717-1: 1997
Test Report Nos Airborne L207-005 (Available on request)
  Impact L207-006 (Available on request)
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