Isowave System 23 for Walls



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Datasheet
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product data sheet
     


NHBC Tested

0845 838 3399

•  New Build
•  Conversions
•  Refurbishments

The Isowave system 23 is for the treatment of excessive flanking sound that bypasses a separating floor via lightweight structural walls.

Isowave 23 consists of a 10mm Isowave acoustic foam measured to BS 4443 and BS EN ISO 845:2009 bonded to 12.5mm high density, square edged fibre-reinforced gypsum board

Isowave 23 is ideal for upgrading a separating or external masonry wall which is causing flanking noise transmission (often revealed as the cause of a separating floor test failure) or used on independent studwork to upgrade an existing separating wall that is found to perform poorly for airborne sound transmission.

It complies with requirements of EU Regulation No 2037/2000 for ozone depletion and offers good thermal properties.

Performance (on the constructions illustrated)

Reduces unwanted flanking noise in order to comply with Approved Document E 2003 and subsequent amendments in 2004, 2010 and 2013.

Product data

Board size:
1200mm x 600mm x 22.5mm
Isowave foam thickness: 10mm
Weight: 17.3kg/m2
Density: 1300kg/m3

Specification

The acoustic treatment shall be:

Isocheck Isowave 23, supplied by Isomass Ltd. Units 10 & 11, Avenue Business Park, Off Brockley Road, Elsworth, Cambridgeshire, CB23 4EY and installed in accordance with manufacturer’s instructions / recommendations.

Installation

Fix securely to all supports working from the centre of each board outward to the edges using the specified method of fixing at 250mm maximum centres with countersunk cross-slot screws 3.9 x 30mm positioned through the decoupling bar and avoiding the timber wall battens (top detail) or into the metal ‘I’ beam (bottom detail). Position fixings not less than 20mm from board edges and 50mm from corners.

The heads of all fixings should be sunk into the surface of the board and stopped with joint filler.

The square edged cement particle board should be sealed with an intumescent sealant, joints to be a maximum 1mm wide. Any excess adhesive to be removed using a spatula once the adhesive has fully hardened.

A 9.5mm or 12.5mm tapered edge plasterboard with all edges taped should then be fitted. Skim and lightly sand if required.

Where electric socket boxes and light switches are installed the back of the box should be isolated with Isocheck Impacta Pads.

Please ask Isomass for guidance when considering the weight of any new blocks which will be incorporated in a wall directly surrounding a timber separating floor.

PCT  
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Isowave

 

  • 12.5mm tapered-edged plasterboard with all joints taped.
  • Isowave 23.
  • decoupling bar fitted to vertical battens at 400 - 500mm centres on brick / block wall construction.

  • 12.5mm tapered-edged plasterboard with all joints taped.
  • Isowave 23 on timber or metal stud.
  • Air space between stud and brick / block wall construction.

 

 

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