Attachment B - Insulation Specification Brochure

STOPPING NOISE ENTERING YOUR HOME                                MID-FLOORS
When you come home and close the door you want your              One area often forgotten for sound insulation is between
home to be a place you and your family can relax without         the floors of your home. Airborne noise can travel from
being disturbed by the noise of the world outside. If you live   the rumpus room to the nursery above or from the kids’
in a particularly noisy area for example a major highway or      bedrooms to the study below. Structural noise of people
under a flight path, using R3.1 SoundScreen in the ceiling       thumping around on the upstairs floors can be a real
will help reduce noise entering the home.                        annoyance.

Australian Standards recommend a level of less then 40           SoundScreen included in the mid-floor of a two storey
decibels of external sound entering living rooms, and less       home can effectively absorb the airborne elements of the
than 35 decibels entering bedrooms. These levels will allow      noise. While the inclusion of ‘isolating resilient mounts’ in
you to comfortably carry on a conversation, listen to TV at      the ceiling system will greatly reduce the transmission of
a low volume, and sleep soundly.                                 impact noise. For an even better performance upgrade to
                                                                 an acoustic plasterboard such as SoundChek and install
                                                                 using resilient mounts.


                                                                        A.                  B.                    C.

       CSR 6001           Carpet on particle flooring on
                                                                                                          SoundScreen and
                          minimum 190mm cavity depth at             Standard          SoundScreen
                                                                                                        Acoustic Plasterboard
                          600mm centres
Option B.
                          Insulation                                    Nil        SoundScreen R2.0      SoundScreen R2.0

                                                                 10mm Supaceil       10mm Supaceil         10mm Gyprock
                          Plasterboard
                                                                  plasterboard        plasterboard           Soundchek

                          Resilient mount                               Nil                Nil                   Yes

                          Sound insulation performance Rw               37                 40                    55

                          Sound impact performance LnTw               65-70              60-65                 50-55

Source: Option C is Redbook system CSR 6204, minimum cavity depth of 205mm.




       Keep noise in
         its place