Attachment B - Insulation Specification Brochure

SoundScreen dramatically reduces unwanted
noise transfer through walls and between floors
to create peace and quiet


Doctors and psychologists agree that noise has the ability to raise stress, disrupt sleep and generally
reduce your quality of life. There are a lot of reasons for the growing problem of noise pollution.

Acoustic insulation is typically installed in a wall cavity or between a first floor ceiling and second
storey floor at the time of construction. Therefore, if you are renovating, adding an extension or
building a new house – you should consider SoundScreen in the following applications to help
localise noise and limit disruption to adjoining rooms:

 	Home theatres                                                    Laundries

     Study or parents’ retreats                                         Nursery/kids’ rooms

     Bathrooms/ensuites                                                 Mid-floors




KEEP NOISE IN ITS PLACE                                             THE SCIENCE OF SOUND
WITHIN YOUR HOME
                                                                    Sound power is measured in decibels (dB) on a logarithmic
Sometimes the worst noise comes from within.                        scale which means that a 3dB reduction is actually a 50%
Home theatres, excited teenagers and even ensuites                  decrease in sound power. A measure called Weighted
can produce noise you would rather not hear around                  Sound Reduction Index (Rw) has been developed to
your home.                                                          measure the effectiveness of noise reduction in different
                                                                    types of construction.
Including SoundScreen in interior walls can greatly reduce
the transmission of noise between rooms allowing you to             The higher the Rw value, the more noise is absorbed and
get the peace and quiet you deserve without cramping the            the quieter your home will be. An increase of one Rw unit
rest of the family’s style.                                         is approximately equal to a reduction of one decibel of
                                                                    noise level.
A wall system including SoundScreen can absorb
                                                                                                  A.                                B.
enough sound power to effectively reduce noise to                                           Non-insulated wall          SoundScreen™ insulated wall
an acceptable level.

SoundScreen is available in thicknesses to suit 70mm
                                                                    50dB – Quiet noise                           22dB                            16dB
and 90mm timber stud sizes. The adjacent diagram shows
the reductions that can be achieved using R2.0                      65dB – Bathroom noise                        37dB                            31dB

SoundScreen in a 90mm stud wall.                                    80dB – Loud voices                           52dB                            46dB

To achieve even greater reductions, increase SoundScreen            85dB – Entertainment
                                                                           system at                             57dB                            51dB
to R2.5, replace the plasterboard with an acoustic                         moderate level

plasterboard and install resilient mounts (option C). This
will improve the performance to 55Rw.
                                                                                                  Rw 28                           Rw 34



                                                            A.                              B.                                        C.
     CSR 2009          Stud size                   90mm timber studs               90mm timber studs                    90mm timber studs

                       Insulation                           Nil                     SoundScreen R2.0                     SoundScreen R2.5

                                                   10mm Gyprock Plus               10mm Gyprock Plus                   13mm Gyprock
                       Plasterboard
                                                      Plasterboard                    Plasterboard                 Soundchek Plasterboard

                       Resilient mount                      Nil                             Nil                            Resilient mount

                       Sound insulation
                                                            28                              34                                      55
B.                     performance Rw
Source: Option A and B Gyprock Redbook™. Option C Gyprock acoustic predictor.