Coresorba

The board is used to absorb sound in the cavities of timber floors, stud partitions, independent acoustic ceilings and floating acoustic floors.

Coresorba board is also used with decorative acoustically transparent facings as independent sound absorbers on walls and ceilings.

Coresorba

Coresorba

Acoustic Insulation Board

  • Product Description
  • Acoustic
  • Installation
  • Technical

 

Coresorba acoustic insulation boards are manufactured from resin bonded acoustic glassfibre which is compressed to form unfaced 25mm and 40mm thick boards.

The basic glass fibre insulation is compressed under heat and pressure from 100mm to form a 25mm or 40mm thick board. This thinner compressed board retains all the acoustic properties of the 100mm insulation but in a more practical board which is more rigid and easier to cut and handle.

 

The board is used to absorb sound in the cavities of timber floors, stud partitions, independent acoustic ceilings and floating acoustic floors.

Coresorba board is also used with decorative acoustically transparent facings as independent sound absorbers on walls and ceilings. The panel sizes available are 2700mm x 1200mm.

Acoustic Performance


Coresorba can be used in a wide range of sound insulation applications. Where it is used as an acoustic infill in a plasterboard stud partition cavity the typical improvement is up to 5 decibels in airborne sound

For timber floor joists as an acoustic infill the typical improvement is up to 4 decibels in airborne sound

Used for reducing Isolated sound in a wall construction the typical improvement is up to 10 decibels in airborne sound

In a timber acoustic floating floor construction up to 8 decibel in airborne sound and up to 7 decibel in impact sound can be expected.

Concrete acoustic floating floor construction has a typical improvement of up to 4 decibel in airborne sound and up to 16 decibel in impact sound

Isolated sound reducing ceiling construction has a typical improvement of up to 10 decibel in airborne sound and up to 11 decibel in impact sound.

Sound absorption ceiling or wall lining to reduce reverberation time

  Frequency (Hz)
125
250
500
1000
2000
4000
NRC
Class
  25mm Direct
0.10
0.40
0.90
1.00
1.00
1.00
0.85
C
  40mm Direct
0.20
0.60
1.00
1.00
1.00
1.00
0.95
A

 

 

Coresorba panels can be cut with a Stanley knife or a sharp kitchen knife. The Corsorba panels are cut to friction fit between timber or metal studs in partition walls and also between floor joists. For floating acoustic floors, the Coresorba panels are overplayed on tip of the existing floorboards or concrete floor and trimmed around the perimeter of the floor to fit the room dimensions

 

Please refer to and work from the installation details given in the product brochure.

Fire Resistance

The 'Coresorba' acoustic insulation board meets BS 476 Part 6 & 7, Class 1 and Class 0

Thermal Conductivity

The 'Coresorba' acoustic insulation board is also an excellent thermal insulation material having a k value = 0.037 w/mēk

Weight

3 kg/mē = 25mm panel

4 kg/mē = 40mm panel

Standard Size

2700 x 1200 x 25mm - 40mm thick (other sizes available on request)

Colour

Yellow