07/2398 - Revised Noise Report and cover letters to referral agencies [As Published] · 132007.2398

RSL Care ==
Proposed RSL Retirement Village, Cooroy - Road and Rail Noise Assessment (Revised)

 

Given the required construction category, AS 3671 provides typical STC information for standard
construction types. STC (Sound Transmission Class) is a commonly referenced descriptor of the
effectiveness of a material to reduce the noise energy transmitted through that material. The Noise
Reduction must be adjusted to give the STC, according to the following equation (as outlined in AS
3671):

« Required STC for construction material = TNR + 10 x logrol[(S/S1) x 3/h x 2.Tso x C] + 6

=» where:
TNR = Traffic Noise Reduction
S. = area of component (m?)
$= area of ceiling/floor (m?)
h = height of ceiling (m)
Teo = reverberation time of room (s)
C = number of components

The required STC has been calculated based on the required noise reductions presented in Tables
5.5 and 5.6 and unit layouts provided by the client. Tables 5.7 and 5.8 presents the required STCs
for various building components for the proposed development site.

TABLE 5.7: REQUIRD CONSTRUCTION COMPONENT STC FOR ILU UNITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit STC Requirements for Construction Materials
1
1 1 30 36 30 25 31 29 45 45
2 1 28 36 29 24 29 27 45 45
3 3 38 37 21 25 34 26 46 46
4 3 39 39 26 29 37 30 50 50
5 1 26 35 28 23 29 27 45 45
6 2 33 35 28 23 31 28 42 42
7 3 35 36 22 28 33 26 44 44
8 1 31 38 29 28 30 28 48 48
9 1 31 36 27 26 30 28 45 45
10 3 35 39 21 26 34 27 47 47
41 2 33 34 27 25 30 27 43 43
12 1 29 33 26 23 27 25 43 43
13 3 35 35 20 25 32 25 43 43
14 4 35 35 24 31 29 24 43 43
15 3 36 36 24 30 34 26 44 44
16 4 38 36 27 33 32 26 45 45
17 1 35 32 25 31 31 29 41 41
18 4 34 35 23 31 34 27 41 41

 

 

 

 

 

 

 

 

 

 

 

 

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