Noise Assessment Report · MCU18/0019

Aged Care Facility, Noosaville


                     Acoustic barrier fencing is not considered to be appropriate for the site, nor is it
                     particularly necessary given the ample shared spaces inside and at the rear of the
                     building which are amply shielded from road traffic noise.

                     4.2     Internal Noise Levels
                     Calculations of internal noise were carried out using the methodology described in
                     AS 3671 – Acoustics – Road traffic noise intrusion – Building siting and
                     construction. Example calculations are provided in Appendix D.
                     It was found that a maximum Rw 30 is required for glazing facing Goodchap Street
                     on the ground level, while a maximum Rw 31 is required for glazing facing
                     Goodchap Street on the first level. This can be achieved with 6.38 mm laminated
                     glass sliding doors. There is some minor variation in noise levels between different
                     rooms (having lower noise reduction requirements). However, the maximum
                     6.38 mm laminated glass required is somewhat standard, and it is envisaged that
                     adopting this as the standard for the Goodchap St facade would provide ease of
                     construction management.
                     Increased glazing thicknesses can, of course, be used. However, care should be
                     taken to simultaneously address inter-room sound isolation, as very quiet internal
                     environments can make internal noise from other rooms much more audible.
                     The above recommendation is suitable for accommodation rooms, offices and
                     other areas. However, an increased level of noise attenuation may be desirable
                     for the Theatre. It is recommended that minimum 13.76 mm laminated glazing be
                     used on the facades of that room.
                     The facades / rooms requiring the glazing are shown in Figure 7 and Figure 8.




                     Figure 7    Ground Floor Facades Requiring 6.38 mm Laminated Glass (shown in red)




1121R1-R0                                            13 December 2017                                       Page 8 of 10