2-6 GOUGH STREET, CREMORNE · Both the XL2 and calibrator carry current NATA certification or manufactures certification if less than two years old. 2-6 Gough Street, Cremorne AA422MB-01E02

2-6 GOUGH STREET, CREMORNE

Town Planning Stage Acoustic Report

Caydon Property Group Pty Ltd

29 MARCH 2019

Octave Acoustics

ABN 60 615 372 873

Ph +61 3 9111 0185

Studio 1A, 3 Harris Street

Yarraville, Melbourne, Vic 3013

2-6 Gough Street, Cremorne AA422MB-01E02 Town Planning Acoustic Report (r2)

Town Planning Stage Acoustic Report i

Project 2-6 Gough Street, Cremorne

Client Caydon Property Group Pty Ltd

Document number AA422MB-01E02 Town Planning Acoustic Report (r2)

Revision Date Comment Author Reviewer

0 22.11.2018 Issued to Client AL/RB RB

1 27.11.2018 Revision AL/RB RB

2 29.03.2019 Revision AL/RB RB

Disclaimer:

The information contained within this document has been prepared by Octave Acoustics Pty Ltd

under briefing instructions, caveats and terms and conditions accepted by both the Client and

Octave Acoustics Pty Ltd. The information contained within this document should not be relied upon

by any third parties or applied under any context other than that described within this document.

The information within this report shall remain the property of Octave Acoustics Pty Ltd. Octave

Acoustics Pty Ltd shall retain all common law, statutory and other reserved rights, including

copyright thereto. As such the information contained within this report should not be distributed to

third parties without the written consent of Octave Acoustics Pty Ltd.


Town Planning Stage Acoustic Report ii

Table of Contents

1 INTRODUCTION ....................................................................................................................................... 3

2 PROPOSED SITE & DEVELOPMENT ........................................................................................................... 5

3 NOISE MEASUREMENTS .......................................................................................................................... 6

3.1 RESULTS OF NOISE MEASUREMENTS .............................................................................................................. 8

4 CRITERIA .................................................................................................................................................. 9

4.1 PLANNING SCHEME .................................................................................................................................... 9

4.1.1 Clause 22.05 Interface Uses Policy .................................................................................................... 9

4.1.2 Clause 37.02 Comprehensive Development Zone ........................................................................... 10

4.1.3 Clause 52.43 Live Music & Entertainment Noise ............................................................................ 10

4.2 STATE POLICY .......................................................................................................................................... 12

4.2.1 Noise from Commerce, Industry & Trade (SEPP N-1) ...................................................................... 12

4.2.2 Music Noise from Public Premises (SEPP N-2) ................................................................................. 12

4.3 GUIDELINES & OTHER ............................................................................................................................... 13

4.3.1 EPA Noise Control Guidelines .......................................................................................................... 13

4.3.2 Patron Noise ................................................................................................................................... 15

5 ASSESSMENT & RECOMMENDATIONS ................................................................................................... 17

5.1 CLAUSE 22.05 INTERFACE USES POLICY ....................................................................................................... 17

5.1.1 Noise Impacts Associated with non-residential Development ........................................................ 17

5.1.2 Noise Impacts Associated with Residential Development .............................................................. 25

5.1.3 Noise Impacts on Dwellings from Surrounding Sites....................................................................... 26

5.2 CLAUSE 37.02 COMPREHENSIVE DEVELOPMENT ZONE ................................................................................... 26

5.2.1 Façade Assessment ......................................................................................................................... 27

5.3 CLAUSE 52.43 LIVE MUSIC & ENTERTAINMENT NOISE.................................................................................... 28

6 CONCLUSION ......................................................................................................................................... 29

GYM FLOOR ISOLATION FOR FREE WEIGHTS AREAS ............................................................. 30

POOL ISOLATION .................................................................................................................. 33

GLAZING MARK-UPS ............................................................................................................. 38


Town Planning Stage Acoustic Report 3

1 Introduction

Octave Acoustics was engaged by Caydon Property Group Pty Ltd to carry out an assessment as

required to address the acoustic conditions on City of Yarra planning permit number PLN15/1176 for

Stage 2 of the proposed residential led mixed use development 2-6 Gough Street, Cremorne (Proposed

Development). This report addresses these conditions, which are as follows:

51 Before the plans required by Condition No. 1 of this permit are endorsed, an amended Acoustic

Report to the satisfaction of the responsible authority must be submitted to, and approved by,

the responsible authority. When approved, the amended Acoustic Report must be generally in

accordance with the Acoustic Report prepared by Renzo Tonin & Associates, dated 12 February

2016 and include an assessment of how the requirements of the State Environment Protection

Policy (Control of Noise from Commerce, Industry and Trade, No. N-1), the State Environment

Protection Policy (Control of Music Noise from Public Premises No. N-2) and relevant Australian

Standards will be met and must:

a) be amended to reflect the decision plans;

b) prescribe the form of acoustic treatment to protect all dwelling occupants and nearby

occupants from noise generated from the mechanical plant equipment and ventilation

mechanisms installed or constructed as part of the development (including the lift, residential

air conditioner units and commercial plant and equipment);

c) prescribe the form of acoustic treatment to protect all dwelling occupants within the

development from noise associated with City Link;

d) include an assessment of the remaining land uses on the balance of the site and the impact on

the proposed dwellings (unless the land uses on the balance of the site have ceased). The

acoustic report must make recommendations to limit the noise impacts in accordance with the

State Environment Protection Policy (Control of Noise from Commerce, Industry and Trade) No.

N-1 (SEPP N-1), State Environment Protection Policy (Control of Music Noise from Public

Premises) No. N-2 (SEPP N-2) or any other requirement to the satisfaction of the responsible

authority;

e) include an assessment of the impact of the following on the proposed dwellings; car park

entrance door, the car park itself, any non-residential land uses, common residential areas,

structure-borne noise through the pool and supermarket and shop services. Treatments must

be provided to achieve a reasonable level of amenity for residents and must make

recommendations to limit the noise impacts in accordance with the State Environment

Protection Policy (Control of Noise from Commerce, Industry and Trade) No. N-1 (SEPP N-1),

State Environment Protection Policy (Control of Music Noise from Public Premises) No. N-2

(SEPP N-2) or any other requirement to the satisfaction of the responsible authority;



f) address the impact of the restaurants, food and drink premises (cafes), shops, function centre,

exhibition centre, art gallery and venue on residents on and off the site; and

g) demonstrate compliance with the requirements of Schedule 3 to the Comprehensive

Development Zone of the Yarra Planning Scheme to ensure that new development or

refurbished / converted buildings for new residential and other noise sensitive uses, located on

the southern part of the site directly adjacent to City Link, include appropriate acoustic

measures as outlined in AS 3671 – 1999 “Acoustics – Road Traffic Noise Intrusion – Building

Siting and Construction” to attenuate noise levels internally within the building.

This report provides details of the assessment and the findings in response to these conditions.



2 Proposed Site & Development

The Proposed Development seeks to deliver a combination of refurbished heritage and new buildings

numbered B4-B6, B8 and B9. A summary of each of these buildings is as follows:

B4: a 3-storey heritage building refurbished to incorporate offices and a ground level retail

space.

B5: a 3-storey heritage building refurbished to incorporate a restaurant and café on ground

level and an office space on level 2.

B6: a new 11-level hotel building suspended above a 2-storey heritage building refurbished to

include restaurant, function rooms and co-working office spaces. Level 12 of B6 includes a

gym for use by hotel patrons.

B8: heritage silos, refurbished to incorporate office spaces.

B9: a new 15-storey apartment building with 4 basement levels of car-parking. On ground floor

B9 includes townhouses, a loading bay and residential pool and gym facilities. Level 14 of B9

includes a restaurant and residential facilities (bar, gym, home theatre and jacuzzi). B9 also

includes heritage silos refurbished to incorporate:

o Function centre

o An art gallery

o A wellness centre

o Offices

o Part of the restaurant use attached to Level 14 of B9

The site is zoned Comprehensive Development 3 Zone (CDZ3) and is abutted:

To the south by Harcourt Parade and an elevated section of the Monash Freeway / Citylink

(M1), (zoned RDZ1).

To the east by an approved 15-storey residential led mixed-use development (Stage 1 of the

2-8 Gough Street development (zoned CDZ3)).

To the southeast by an approved 9 storey commercial/office building (zoned C2Z).

To the north by existing residential properties on Melrose Street and Gough Place (zoned

NRZ1).

To the northwest by a 5-storey commercial/office building (zoned C2Z).

To the northeast by commercial buildings ranging between one and two storeys (zoned C2Z).

To the west by land used as an open car-park and for bill board signage (zoned C2Z).



3 Noise Measurements

Octave Acoustics installed a noise monitor on the rooftop of the vacant two-storey commercial

building which is located on the site and is shown as Location 1 in Figure 1 below. Monitoring was

conducted between Tuesday the 16th and Saturday the 20th of May 2017. The noise monitor was

installed such that the microphone was located above the roof parapet and had an unobstructed line

of sight to all lanes of the adjacent Monash Freeway / Citylink (M1). The noise monitor microphone

was installed at a height of 1.5m above the rooftop and approximately 10m above ground level. The

noise environment at Location 1 was dominated by freeway traffic.

Additional noise monitoring was carried out at Location 2 between Monday the 26th of June and Friday

the 30th of June 2017. In this instance, the noise monitor was installed such that the microphone was

at a height of 1.5m above the roof of the existing single level building. Location 2 was shielded from

the Monash Freeway by the taller buildings on site. The noise environment was at Location 2

dominated by traffic on Punt Road and the Monash Freeway (despite shielding).

All noise monitoring was carried out using an NTI XL2 sound level meter which was calibrated before

and after all measurements using a Bruel Kjaer 4320 calibrator. No drift in calibration was detected.

The NTI XL2 complies with the requirements of IEC 61672-1.2013 Sound Level Meters and is classified

as a Class 1 instrument. The calibrator complies with the requirements of IEC 60942.2004 Sound

Calibrators. Both the XL2 and calibrator carry current NATA certification or manufactures certification

if less than two years old.



Figure 1 – Site Context

Measurement Location 1

Subject Site

Approved 15

storey mixed-

use building

Approved 9 storey

office building

Measurement Location 2

2 – 3 Storey

commercial buildings

5 Storey commercial

/office building



3.1 Results of Noise Measurements

Table 1 provides the highest overall period average ambient sound pressure level for the façade of the

Proposed Development most affected by traffic noise. The day/evening period average sound

pressure level of 74dB(A) Leq, 16hr has been used for the purposes of conducting the glazing assessment

detailed in Section 5.2.1. Table 2 provides the lowest hourly background noise levels for each period

used for determining EPA noise limits applicable to commercial plant.

TABLE 1 – TRAFFIC NOISE LEVELS

Location Noise

Descriptor

Period Average Ambient Sound Pressure Level dB(A)

Day & Evening

6am - 10pm

Night

10pm – 6am

Location 1 Leq 74 70

TABLE 2 – LOWEST AMBIENT BACKGROUND NOISE LEVELS

Location Noise

Descriptor

Minimum Hourly Background Sound Pressure Level for each

Period dB(A)

Day

7am - 6pm

Evening

6pm – 10pm

Night

10pm – 7am

Location 2 L90 51 46 38



4 Criteria

4.1 Planning Scheme

Pertinent requirements in the Yarra and Victorian Planning Schemes include those described in:

Clause 22.05 Interface Uses Policy

Clause 37.02 Comprehensive Development Zone

Clause 52.43 Live Music and Entertainment Noise

4.1.1 Clause 22.05 Interface Uses Policy

The Guidelines within the Interface Uses Policy state:

Dwelling Design

New residential development located in Mixed Use, Business Zones, or in a Residential 1 Zone

within 30 metres of a Business or Industrial Zone or 30 metres of an existing industrial or

business use, is to be designed to:

Incorporate appropriate measures to protect the residents from unreasonable noise,

fumes, vibration, light spillage and other likely disturbances.

Locate noise-sensitive rooms (in particular, bedrooms) and private open space away

from existing and potential noise sources, and where appropriate incorporate other

measures such as acoustic fencing, landscaping and setbacks.

Non-Residential Development Near Residential Properties

New non-residential development is to be designed to / so that:

Provide for a high level of acoustic protection to adjoining residential properties by:

o Locating plant and other service infrastructure (including automatic garage doors) in

discrete locations

o Using masonry wall construction rather than, for example, curtain walling

o Building in effective acoustic insulation.

Minimise noise transmission within the building, including from machinery and

ventilation systems, between floors or separate units and to adjoining residential

properties.

The Application Requirements set out in the Interface Uses Policy state:

Permit applications for residential development to include details of proposed acoustic

attenuation design features or measures, and other design features to mitigate the potential



noise, fumes and air emissions, light spillage, waste management and other operational

matters from the nearby business or industrial uses.

An Acoustic Assessment Report is to be provided in circumstances where the Council

determines the potential for noise disturbance to residents is present. The report should

demonstrate that the residents will enjoy a reasonable level of acoustic amenity within the

dwelling.

Permit applications for non-residential development within Mixed Use or Business zones and

within Industrial zones within 30 metres of a Residential 1 or Mixed Use zone to include details

of proposed methods to address potential noise, fumes and air emissions, light spillage, waste

management and other operational matters that may cause negative impacts upon nearby

residential properties.

4.1.2 Clause 37.02 Comprehensive Development Zone

Schedule 3 to Clause 37.02 Comprehensive Development Zone states that:

Use of the land must be in accordance with the Table… …and the comprehensive development

plan: “Planning and Design Principles for the Richmond Maltings Site, Cremorne – November

2007”.

Where these principles include the following:

Ensure that the new development or / converted buildings for new residential and other noise

sensitive uses, located on the southern part of the site directly adjacent to the Monash

Freeway, include appropriate acoustic measures as outlined in AS3671 – 1999 “Acoustics –

Road Traffic Noise Intrusion – Building Siting and Construction”, to attenuate noise levels

internally within the building.

In addition, Clause 37.02 contains the following requirement:

A use must not detrimentally affect the amenity of the neighbourhood, including through the…

…emission of noise…

4.1.3 Clause 52.43 Live Music & Entertainment Noise

Clause 52.43 defines a live music entertainment venue as:

a food and drink premises, nightclub, function centre or residential hotel that includes

live music entertainment

a rehearsal studio

any other venue used for the performance of music and specified in clause 2.0 of the

schedule to this clause, subject to any specified condition or limitation.

The requirements to be met in order to satisfy Clause 52.43 are stated as:



A live music entertainment venue must be designed, constructed and managed to minimise

noise emissions from the premises and provide acoustic attenuation measures that would

protect a noise sensitive residential use within 50 metres of the venue.

A noise sensitive residential use must be designed and constructed to include acoustic

attenuation measures that will reduce noise levels from any:

indoor live music entertainment venue to below the noise limits specified in State

Environment Protection Policy (Control of Music Noise from Public Premises) No. N-2

(SEPP N2).

outdoor live music entertainment venue to below 45dB(A), assessed as an Leq over 15

minutes.

For the purpose of assessing whether the above noise standards are met, the noise

measurement point may be located inside a habitable room of a noise sensitive residential use

with windows and doors closed (Schedule B1 of SEPP N2 does not apply).

A permit may be granted to reduce or waive these requirements if the responsible authority is

satisfied that an alternative measure meets the purpose of this clause.

Application requirements under Clause 52.43 are as follows:

An application must be accompanied by the following information, as appropriate:

A site analysis, including plans detailing:

o the existing and proposed layout of the use, buildings or works, including all

external windows and doors

o the location of any doors, windows and open space areas of existing properties in

close proximity to the site.

If the application is associated with a noise sensitive residential use:

o the location of any live music entertainment venues within 50 metres of the site

o the days and hours of operation of identified venues.

If the application is associated with a live music entertainment venue:

o the location of any noise sensitive residential uses within 50 metres of the site

o the days and hours of operation of that venue

o the times during which live music will be performed.

Details of existing and proposed acoustic attenuation measures.

If in the opinion of the responsible authority an application requirement is not relevant to the

evaluation of an application, the responsible authority may waive or reduce the requirement.



With respect to these requirements it is appropriate that the performance of any acoustic attenuation

measures are assessed with respect to the degree to which compliance with EPA Policy SEPP N-2 is

achieved at the potentially most affected noise sensitive receivers (refer to Section 4.2.2).

4.2 State Policy

4.2.1 Noise from Commerce, Industry & Trade (SEPP N-1)

Noise associated with commercial and base building plant is required to comply with State

Environment Protection Policy Control of Noise from Commerce, Industry and Trade No. N-1 (SEPP N-

1). SEPP N-1 is subordinate legislation under the Environment Protection Act 1970 (EP Act) and

compliance is mandatory when noise levels are assessed at residential properties. The applicable

criteria for plant noise emissions affecting adjacent residential properties have been calculated from

existing background noise levels and are presented in Table 3 below.

TABLE 3 – SEPP N-1 NOISE CRITERIA FOR COMMERCIAL PLANT

Period Background Noise

Level, LA90

Zoning Level, LAeq Background

Classification

Applicable Noise

Limit, LAeq

Day 51 58 Neutral 58

Evening 46 51 Neutral 51

Night 38 46 Neutral 46

Notes: 1. Day period is:

07:00 – 18:00 Monday – Friday

07:00 – 13:00 Saturday

2. Evening period is:


13:00 – 22:00 Saturday

07:00 – 22:00 Sunday

3. Night period is:

22:00 – 07:00 Monday – Sunday

4.2.2 Music Noise from Public Premises (SEPP N-2)

Music noise emissions from public premises are required to comply with State Environment Protection

Policy Control of Noise from Public Premises No. N-2 (SEPP N-2). SEPP N-2 is subordinate legislation

under the Environment Protection Act 1970 (EP Act) and compliance is mandatory when music noise

levels are assessed at residential properties. The applicable criteria for music noise affecting

residential properties within and adjacent to the Proposed Development have been calculated from

existing ambient noise levels and are presented in Table 4 and Table 5 below.



TABLE 4 – SEPP N-2 DAY/EVENING PERIOD CRITERIA FOR MUSIC NOISE

Noise Sensitive Receiver Minimum

Ambient

Background

(LA90)

+5dB(A) Applicable SEPP

N-2 criteria

(LAeq)

South Façade of Level 13 of Building B9 54 +5 59

TABLE 5 – SEPP N-2 NIGHT PERIOD CRITERIA FOR MUSIC NOISE

Metric Octave Band Center Frequency (Hz)

63 125 250 500 1000 2000 4000

South Façade of Level 13 of Building B9

Minimum Ambient Background (LOCT90) 42 40 38 36 35 30 18

+8dB +8 +8 +8 +8 +8 +8 +8

Applicable SEPP N-2 criteria (LOCT10) 50 48 46 44 43 38 26

4.3 Guidelines & Other

4.3.1 EPA Noise Control Guidelines

4.3.1.1 Fixed domestic plant

Noise associated with the operation of domestic plant is required to comply with the Environmental

Protection (Residential Noise) Regulations 2008 under the EP Act. These regulations require that noise

is inaudible at adjacent residential properties during the night period. During the Day and Evening

periods noise from domestic plant must comply with Section 48A (unreasonable noise provisions) of

the EP Act. Whilst there are no objective criteria prescribed under the Unreasonable Noise Provisions,

guidance may be taken from the EPA Publication 1254 Noise Control Guidelines 2008 (1254). 1254

States that noise affecting adjacent residential properties shall not exceed the background noise level

by more than 5dB(A). A summary of these criteria is presented in Table 6.

TABLE 6 – NOISE CRITERIA FOR DOMESTIC PLANT

Period Background Noise Level, LA90 Applicable Noise Limit, LAeq

Day 51 56

Evening 46 51

Night 38 33 Notes: 1. Night is defined as:


22:00 – 09:00 Weekend and public holidays

2. Day and Evening are defined as all other times.



4.3.1.2 Deliveries to Shops, Supermarkets & Service Stations

EPA Victoria Publication 1254 Noise Control Guidelines (1254) sets out best practice guidelines for

management of noise associated with waste collections and deliveries as below. Compliance with

1254 is not required under the planning scheme and is not otherwise mandatory. Instead 1254 may

be used to assist Authorities and applicants in the negotiation and implementation of appropriate

permit conditions.

Waste Collection

Annoyance created by industrial waste collecHon tends to intensify in the early morning period. To this

end, early morning collecHons should be restricted to non-residenHal areas to minimise early morning

disturbances. Where a residenHal area is impacted by noise from the collecHon of refuse, then

collecHons should be restricted to the Hmes set out below.

One collec.on per week:

6:30am-8pm Monday to Saturday

9am-8pm Sunday and public holidays

Two or more collec.ons per week:

7am-8pm Monday to Saturday

9am-8pm Sunday and public holidays

In addition, 1254 recommends that:

Refuse bins should be located at sites that provide minimal annoyance to residential premises

Compaction should be carried out while the vehicle is moving.

Bottles should not be broken up at the collection site.

Routes which service predominantly residential areas should be altered regularly to reduce

early morning disturbances.

Deliveries to shops, supermarkets & service stations

Where a residenHal area will be affected by noise from deliveries, then deliveries should be inaudible

within a habitable room of any residenHal premises (regardless of whether any door or window giving

access to the room is open) outside the following hours:

7am-10pm Monday to Saturday

9am-10pm Sundays and public holidays



4.3.2 Patron Noise

There are no mandatory criteria or guidelines for the assessment of patron noise in the state of

Victoria. Victorian members of the Association of Australasian Acoustical Consultants (AAAC) have

conferenced in an attempt to define an appropriate assessment framework, however consensus has

not been reached.

Assessment of patron noise in Victoria typically consists of two assessments, the first for the quasi

steady state nature of a noise, the second for any transient characteristic. The quasi steady state

assessment relates to what might otherwise be referred to as the ‘general babble’ noise of a crowd,

whereas the transient assessment applies to maximums associated with intermittent loud laughter or

shouting.

Octave Acoustics adopts noise trigger levels with which to assess patron noise against. Experience

shows that patron noise levels lower than the set trigger levels do not typically result in unreasonable

amenity impacts. Patron noise levels exceeding a trigger requires specific consideration of the context,

nature and magnitude of the event in order to determine whether amenity impacts will be

unreasonable.

Patron noise assessment criteria adopted by Octave Acoustics are set out in Sections 4.3.2.1 and

4.3.2.2 below.

4.3.2.1 Quasi-steady state criteria

TABLE 7 – QUASI-STEADY STATE PATRON NOISE TRIGGERS

Noise Sensitive Receiver Time Minimum

Ambient

Background

(dB, LA90)

+5dB(A) Trigger Level

(dB, LAeq)

South Façade of Level 13 10pm 54 +5 59

1am 45 +5 50

Adjacent Courtyard

Surrounding Building B5

7am to 6pm 50 +15 65

6pm to 10pm 46 +10 56

10- 11pm 46 +5 51

4.3.2.2 Transient Criteria

Octave AcousNcs applies sleep disturbance criteria to the assessment of transient patron noise. Whilst

there are currently no policies or guidelines in Victoria for the assessment of sleep disturbance, VCAT

typically accepts triggers defined in accordance with the NSW Environmental Criteria for Road Traffic

Noise 1999 (ECTRN). The ECTRN concludes that:

Maximum internal noise levels below 50-55dB(A) are unlikely to awaken people from sleep;

and



One or two noise events per night, with maximum internal noise levels of 65-70dB(A) are not

likely to affect health and wellbeing significantly

These triggers are usually only applied between the hours 10pm to 7am. Where residenNal windows

may be open for venNlaNon, it is generally accepted that the noise reducNon via the open window is

10dB(A). Therefore, external noise levels need to exceed sleep disturbance triggers by more than

10dB(A) to warrant further assessment.

TABLE 8 – SLEEP DISTURBANCE NOISE TRIGGERS

Bedroom Trigger Level

(dB, LAmax)

Correction for Outdoor Level Associated Outdoor Trigger

Level (dB, LAmax)

50-55 +10 dB 60-65



5 Assessment & Recommendations

5.1 Clause 22.05 Interface Uses Policy

The Interface Uses Policy seeks to manage noise impacts between commercial/industrial and

residential uses with an emphasis on the ‘agent of change’ principle. An important outcome of this

policy is that existing commercial/industrial uses obtain some protection from residential

encroachment (which would not otherwise be the outcome under SEPP N-1). The Policy also requires

consideration of potential impacts of proposed commercial/industrial uses on existing residential

properties. Not only does this require assessment with respect to SEPP N-1, but this also broadens the

scope of assessment to other non-mandatory criteria (such as sleep disturbance) and noise sources

falling outside the scope of mandatory policies.

5.1.1 Noise Impacts Associated with non-residential Development

5.1.1.1 Loading Bay Noise

Noise associated with delivery activities within the loading bay is required to comply with SEPP N-1.

In addition, it is appropriate that delivery noise not exceed sleep disturbance triggers (as described in

Section 4.3.2.2) within bedrooms of adjacent dwellings. The loading bay is concealed within an internal

space on ground level of Building B9. As such it is expected that associated noise will easily comply

with SEPP N-1 at the nearest residential receivers. However, there is potential for associated transient

structure borne noise to exceed sleep disturbance triggers. This shall be addressed by the addition of

resilient finishes to the floor and walls of the loading area. Such treatment may take the form of 20mm

thick rubber matt installed to the slab and 10mm thick rubber mat installed to masonry and concrete

walls up to a height of 1200mm.

5.1.1.2 Car-park & Entrance Door

Noise impacts associated with the car-park and entrance door will be minimised through the

implementation of the following:

The car-park entrance door motor, guiderails, drum and associated mechanisms should be

installed using vibration isolation mounts equivalent to Embelton NRD. Where under axial

load, these mounts shall be selected to achieve minimum static deflection of 8mm when

installed.

Noise from the garage door should not exceed 65dB LAmax at 2m from the door.

The wall separating the car-park entrance from the adjacent townhouse unit should be

constructed from precast concrete or equivalent and shall have a sound transmission loss not

less than DnT,w 45.

Speed humps should not be specified to suspended slabs.



Where possible the structural set-out should minimise movement and control joints oriented

perpendicular to traffic flow.

The floor surface of the car park should have a broom finish.

5.1.1.3 Noise from Mechanical Plant

It is important to note that at this early stage of the design a full quantitative assessment of mechanical

plant and equipment is not possible as neither a detailed mechanical design or associated plant and

equipment selections are available. None the less, domestic plant and equipment will be designed to

comply with the requirements of the Environmental Protection Regulations and EPA Noise Control

Guidelines as described in Section 4.3.1.1.

It is mandatory that noise emissions from all commercial plant comply with SEPP N-1 (refer to Section

4.2.1). As such, any plant and equipment installed during base build will be designed to comply with

SEPP N-1. This work will occur during the design development stage of the project, once mechanical

drawings are sufficiently advanced and plant selections are available.

To ensure compliance with SEPP N-1 where plant is installed by tenants during fit-out, it is

recommended that the following condiNon be included into the lease agreement or SecNon 173 of all

commercial tenancies.

All mechanical equipment installed by the tenant including, but not limited to air-

conditioning, kitchen exhausts and refrigeration units shall be designed, installed and

commissioned to comply with SEPP N-1 limits when operating in conjunction with all other

sources on-site.

5.1.1.4 Noise from Office Tenancies

Providing that noise from associated mechanical plant is controlled as described above, then noise

impacts associated with office tenancies is generally expected to be inaudible.

5.1.1.5 Noise from Hospitality & Retail Tenancies

Hospitality and retail tenancies within the Proposed Development include:

Retail tenancies

Retail shell on ground level of Building B4

Wellness Centre on Levels 7 – 9 of the B9 silos

Hospitality tenancies

Restaurant and Café on ground level of Building B5

Restaurant and Café on ground level of Building B6

Function Room on Level 1 of Building B6

Venue on Level 1 of the B9 silos



Art Gallery on Levels 4 and 5 of the B9 silos

Function Room on Level 13 of the B9 silos

Restaurant on Level 14 of Building B9 as well as Level 14 of the B9 silos

It is mandatory that music noise emissions from all hospitality and retail tenancies comply with SEPP

N-2 (refer to SecNon 4.2.2). To ensure compliance with SEPP N-2 it is recommended that the following

condiNons be included into the lease agreement of the retail tenancies:

Any music played within the tenancy shall be at background level. Consistent with Section 9A

of the Liquor Control Reform Amendment (Licensing) Act 2009, background music means a

level that enables patrons to conduct a conversation at a distance of 600 millimetres without

having to raise their voices to a substantial degree.

Speakers shall not be installed outdoors at the premises.

In general, it is recommended that the following condiNons be included in the lease agreement of

hospitality tenancies as appropriate:

Any music noise emissions from the venue shall comply with EPA SEPP N-2 Control of Music

Noise from Public Premises.

Speakers shall not be installed outdoors at the premises.

Any music played at greater than background level as defined in Section 9A of the Liquor

Control Reform Amendment (Licensing) Act 2009 shall be played via a limiter set such that

music noise levels do not exceed the applicable SEPP N-2 limits.

Patron noise shall be controlled such that it does not exceed:

o 50-55 dB LAmax within the bedroom of any residenHal premises, regardless of whether

any door or window to the bedroom is open.

o An LAeq greater than the ambient background noise level (LA90) + 5dB(A) at the

window of any residenHal premises aLer 10pm and before 7am the following day.

5.1.1.6 Restaurant on Level 14 of Building B9 as well as B9 silos

It is proposed that the Nylex Restaurant (the Venue) will be located on Level 14 of Building B9 as well

as Level 14 of the B9 silos. The main area of the venue is enclosed, with a wintergarden and outdoor

balcony located on the southern façade overlooking the Monash Freeway. It is proposed that the

wintergarden will have operable windows. The Venue will also have doors which provide access to the

balcony. Music will be played within the Venue. In accordance with the requirements of the planning

permit the Venue will cater for a maximum of 100 patrons. The dwellings potentially most affected by

noise from the Venue are also within Building B9, below the Venue on Level 13.

Plans for the Venue do not include a keg room or back of house storage areas. It is assumed that any

store rooms required for the Venue will be contained within the non-residential silos structure.



Therefore, structure borne/impact noise typically associated with venue storage areas such as kegs,

boxes and containers being dropped, will be effectively isolated from all potentially affected dwellings.

Most complaints in relation to noise emission from venues relate to music and patron noise.

Accordingly, an assessment of associated potential noise impacts has been carried in a 3-D computer

model of the proposed Venue and surrounding dwellings. This model was established in CadnaA

software, implementing the ISO9613 environmental noise prediction algorithms.

Music Noise

Music noise was modelled assuming a level of 80dB LA10 inside the Venue, commensurate with that

within a vibrant bar. The noise model was run assuming that the wintergarden windows and balcony

doors were open. The resulting music noise levels at the nearest dwellings were compared with the

most onerous applicable SEPP N-2 limits likely to apply (those at 1am). Table 9 presents the results of

this assessment for noise transfer via airborne paths. Table 10 presents results of a calculation of noise

transfer to apartments below via the concrete slab and ceiling.

The results in both tables indicate that the music noise levels of 80dB(A) will result in compliance with

SEPP N-2 at the closest and potentially most affected dwellings. To achieve this outcome in a robust

and practicable manner it is recommended that a music noise limiter is installed to the sound system

of the Venue. This limiter should be installed and calibrated such that music noise levels within the

Venue do not exceed the octave band levels set out in Table 11.

TABLE 9 – SEPP N-2 ASSESSMENT OF AIRBORNE MUSIC NOISE IMPACTS


63 125 250 500 1000 2000 4000

Potentially most affected dwelling on Level 13

Applicable SEPP N-2 criteria (LOCT10) 50 48 46 43 43 38 26

Calculated music noise level 22 35 43 41 32 24 23

Compliant? Yes Yes Yes Yes Yes Yes Yes

TABLE 10 – SEPP N-2 ASSESSMENT OF MUSIC NOISE IMPACTS VIA VENUE FLOOR


63 125 250 500 1000 2000 4000

Potentially most affected dwelling on Level 13

SEPP N-2 base limits 40 30 20 20 15 10 10

Calculated music noise level1 15 21 17 8 - - -

Compliant? Yes Yes Yes Yes Yes Yes Yes Notes: 1. Assumes ceiling is suspended on rubber isolation mounts and insulation is installed to the ceiling

cavity.

TABLE 11 – MAXIMUM MUSIC NOISE LIMITS FOR LIMITER SETTING DURING THE NIGHT PERIOD (DB, L10)


63 125 250 500 1000 2000 4000

Maximum allowable music noise levels 54 69 80 80 74 69 69



Patron Noise

Sound power levels for 100 patrons were calculated using the method described by Hayne in

Prediction of Noise from Small to Medium Sized Crowds (2011), but adjusted by increasing sound

power levels by a further 3dB to account for influences associated with vertical consumption of alcohol

and the provision of music. The resulting patron sound power levels are presented in Table 12.

TABLE 12 – PATRON SOUND POWER LEVELS, LEQ RE 10-12 WATTS

Metric OA, dB(A) Octave Band Center Frequency (Hz)

63 125 250 500 1000 2000 4000

100 Patrons 97 85 86 90 96 93 89 80

Patron noise at the potenNally most affected dwelling was calculated using CadnaA and the results

compared with the applicable criteria. The modelling assumed the following:

Both Venue and dwelling windows and doors were open;

50 patrons are located within the venue and 50 patrons are located on the balcony;

The curtain wall parapet extends a minimum of 1.1 metres above the balcony floor.

The resulting analysis presented in Table 13 shows compliance with the quasi-steady state trigger level

at 10pm. After 10pm ambient background noise levels continue to reduce making the trigger level

increasingly onerous, accordingly the assessment shows a 3dB(A) exceedance of the trigger criterion

at 1am. This relatively small degree of exceedance may not be significant. Regardless, if concerns are

raised post opening, a quasi-steady state patron noise assessment should be carried out and

appropriate mitigation measures applied. Suitable measures may include closure of Venue windows

and/or limitation of patron numbers on the terrace after 10pm.

TABLE 13 – QUASI-STEADY STATE PATRON NOISE ASSESSMENT, SOUTH FAÇADE OF LEVEL 13

Time of

Assessment

Trigger Level

(dB, LAeq)

Venue

Windows and

Doors

Venue

Balcony

Access

Patron Noise

Level (dB,

LAeq)

Further

Consideration

Required?

10pm 59 Open Open 53 No

1am 50 Open Open 53 Yes

Assessment of maximum transient patron noise levels was carried out and the results of this analysis

presented in Table 14. These results show no material exceedance of the applicable trigger and as

such no further investigation is required.

TABLE 14 – SLEEP DISTURBANCE NOISE TRIGGERS (AFTER 10PM)

Bedroom Trigger

Level

(dB, LAmax)

Venue Windows

and Doors

Venue Balcony

Access

Patron Noise

Level (dB, LAMax)

Further

Consideration

Required?

50-55 Open Open 52 No



In summary, detailed analysis indicates that all noise impacts associated with the proposed Nylex

Restaurant can easily be controlled as required for compliance with both mandatory and best-practice

noise criteria.

5.1.1.7 Function Centre

It is proposed that a function centre will be located on Level 13 of within the non-residential silos

section of Building B9. Closing time for this facility will be 11pm. Any music noise emissions from the

function centre will be required to comply with SEPP N-2 limits (refer to Section 4.2.2). Noise from

patrons should be subject to assessment with respect to the established triggers (refer Section 4.3.2).

Plans of the function centre show that it is located within a glazed room within the extended concrete

silos. In addition, it is assumed that the windows of the function centre will not be operable. This

configuration will result in a very high level of sound insulation between the function centre and the

nearest dwellings. As such noise from function centre patrons is expected to be significantly below

the applicable patron noise triggers.

To achieve compliance with SEPP N-2 in a robust and practicable manner it is recommended that a

music noise limiter is installed to the sound system of the function centre. This limiter should be

installed and calibrated such that music noise levels within the centre do not exceed the octave band

levels set out in Table 15. This equates to an internal music noise level of approximately 90dB(A),

which is expected to be suitable for most uses. Higher music noise limiter settings may be allowable,

but should only be permitted on the basis of a post construction assessment carried out by a suitably

qualified acoustic engineer.

TABLE 15 – FUNCTION CENTRE LIMITER SETTING DURING THE NIGHT PERIOD (DB, L10)


63 125 250 500 1000 2000 4000

Maximum allowable music noise levels 64 79 90 90 84 79 79

5.1.1.8 Restaurant in Building B5

The Proposed Development includes a restaurant on the ground level of Building B5. It is proposed

that the restaurant will have a capacity for 195 patrons and will close at 11pm. There are two outdoor

dining areas associated with this restaurant, in the small courtyard between Buildings B4 and B5 and

a larger outdoor terrace space between Buildings B5 and B8. The restaurant and associated outdoor

areas are overlooked by several sensitive receivers including, guest rooms of the hotel in Building B6

and dwellings within the adjacent approved Stage 1 development. Potential restaurant noise impacts

to these receivers include both patron and music noise.

The following assessment has been carried out with respect to the potentially most affected sensitive

receivers within the B6 hotel and the Stage 1 development. Where compliance with noise criteria and

triggers is achieved at these receivers, compliance will be achieved at all other proximate receivers,

including at the existing dwellings on Gough Street.



Music Noise

It is proposed that the restaurant will only play music at background levels as defined in Section 9A of

the Liquor Control Reform Amendment (Licensing) Act 2009:

…a level that enables patrons to conduct a conversation at a distance of 600 millimetres

without having to raise their voices to a substantial degree.

Music noise played at background level is expected to comply with SEPP N-2 where noise from

associated patrons does not significantly exceed patron noise triggers.

Patron Noise

Assessment of patron noise has been carried out in CadnaA software as described above. The model

has assumed a worst-case scenario during pleasant weather where half the restaurant patrons are

seated in the outdoor dining areas, 75 patrons in the larger area and 25 patrons in the smaller area.

Sound power levels for patrons were calculated using the method described by Hayne in Prediction of

Noise from Small to Medium Sized Crowds (2011). The resulting patron sound power levels are

presented in Table 16. It was assumed that the restaurant windows and doors are open. In this

scenario, patron noise levels within the restaurant will not make a significant contribution to resulting

levels and therefore were not modelled.

TABLE 16 – PATRON SOUND POWER LEVELS, LEQ RE 10-12 WATTS

Metric OA, dB(A) Octave Band Center Frequency (Hz)

63 125 250 500 1000 2000 4000

25 Patrons 85 73 74 78 84 81 76 68

75 Patrons 92 80 81 85 91 88 83 75

Patron noise at the potenNally most affected dwellings were calculated within the model and the

results compared with the applicable criteria. With respect to the quasi-steady state criterion the

resulNng analysis presented in Table 17 shows compliance with triggers at all receivers with the

excepNon of:

a minor 2dB(A) exceedance of the trigger at Building B6 between 6pm and 10pm.

a 7dB(A) exceedance of the trigger at Building B6 between 10pm and 11pm.



A 2dB(A) increase in noise level is commonly held to be impercepNble. As such the 2dB(A) exceedance

is considered insignificant and does not require further consideraNon. However, the 7dB(A)

exceedance between 10pm and 11pm may be significant. As such it is recommended that that a patron

noise assessment be carried out aVer opening of the restaurant if concerns are raised by occupants of

the adjacent dwellings. If it is deemed necessary to miNgate patron noise one, or a combinaNon of the

follow two strategies can be adopted:

1. Limit outside patron numbers aVer 10pm to a maximum of 20 patrons within the large dining

area, whilst sNll allowing 25 patrons within the smaller outdoor area.

2. Restrict outdoor dining to 10pm.

TABLE 17 – QUASI-STEADY STATE PATRON NOISE ASSESSMENT, RECEIVERS SURROUNDING B5

Assessment

Location

Time of

Assessment

Trigger Level

(dB, LAeq)

Patron Noise

Level (dB, LAeq)

Further

Consideration

Required?

Building B6 11pm 51

58 Yes

Stage 1 48 No

Building B6 6pm – 10pm 56

58 Yes

Stage 1 48 No

Building B6 7am – 6pm 65

58 No

Stage 1 48 No

Assessment of maximum transient patron noise levels was carried out assuming the default conditions

described above. The result of this analysis is presented in Table 18 and shows compliance with the

applicable triggers with the exception of a 3dB(A) exceedance at lower dwellings within Building B6.

This relatively small degree of exceedance may not be significant. Regardless if concerns are raised, a

sleep disturbance assessment should be carried out as part of the post opening assessment described

above. Appropriate implementation of either one, or a combination of the above mitigation strategies

will be also effective in achieving the required attenuation of potential sleep disturbance events.

TABLE 18 – SLEEP DISTURBANCE NOISE TRIGGERS (AFTER 10PM)

Assessment Location Bedroom Trigger Level

(dB, LAmax)

Patron Noise Level

(dB, LAMax)

Further Consideration

Required?

Building B6 50-55

58 Yes

Stage 1 48 No

In summary, detailed analysis indicates that all noise impacts associated with the proposed restaurant

can easily be controlled as required for compliance with both mandatory and best-practice criteria.

5.1.1.9 Restaurant in Building B6

The Proposed Development includes a restaurant/cafe on the ground level of Building B6. It is

proposed that the restaurant will have a capacity for 80 patrons and will close at 11pm. There are not

proposed to be any outdoor dining areas associated with this restaurant. The nearest sensitive

receivers are the hotel rooms located directly above on level 3 of Building B6.



Music Noise

It is proposed that the restaurant will only play music at background levels as defined in Section 9A of

the Liquor Control Reform Amendment (Licensing) Act 2009:

…a level that enables patrons to conduct a conversation at a distance of 600 millimetres

without having to raise their voices to a substantial degree.

Music noise played at background level is expected to comply with SEPP N-2 where noise from

associated patrons does not significantly exceed patron noise triggers.

Patron Noise

Patron noise levels emanating from within the restaurant have not been modelled as patron noise

affecting adjacent receivers is expected to be dominated by the outdoor dining areas associated with

the restaurant in Building B5 (refer Section 5.1.1.8). Additional patron noise impacts from the Building

B6 restaurant are not expected to make a significant contribution to overall to resulting levels at the

nearest sensitive receivers even where assuming that the restaurant windows and doors are open.

5.1.2 Noise Impacts Associated with Residential Development

5.1.2.1 Gym Noise & Vibration

Non-commercial gyms for the use of residents and hotel guests are located on Ground Floor of

Building B9, Level 14 of Building B9 and Level 12 of Building B6.

To minimise noise and structure-borne vibration from gym activities affecting adjacent sensitive

spaces the following is recommended:

- The area of gyms dedicated to free weights should incorporate a damped spring floor system.

A damped sprung floor should be constructed using two layers of 19mm thick structural

plywood laid at 90 degrees to each other atop supporNng steel channels atop damped spring

isolators equivalent to Embelton NXS-16. The maximum loading and spacing requirements of

the damped spring isolators shall be determined by the supplier. The void below the sprung

floor created by the damped springs shall be filled with 50mm thick polyester insulaNon with

minimum density of 32kg/m3. The damped sprung floor shall be isolated from the perimeter

walls using a resilient void former equivalent to 10mm thick Embelton Embelfoam. A 25mm

thick rubber gym maW should be installed atop the damped spring floor as the finished floor

surface. Refer to Appendix A for details of the proposed isolated floor system.

- For other areas of the gym dedicated to treadmills, rowing machines, exercise bikes etc the

floor impact isolation is to be provided by 20-25mm thick rubber matt equivalent to one (1)

layer of 15-20mm thick low-density rubber (e.g. Regupol 6010) bonded to the slab and then

bonded atop with one (1) layer of high-density rubber (e.g. 8mm thick Regupol Everoll). The

Regupol Everoll may form the finished floor surface.



- All gym equipment shall be fiWed with neoprene mounts.

- All weights machines shall be of the type that incorporate isolaNon springs below the weights

or be retrofiWed with springs equivalent to Embelton NXS-16 directly below the weight stacks.

5.1.2.2 Pool Isolation

A pool is located on the Ground Floor of Building B6. To minimise noise and structure-borne vibration

from people jumping into the pool affecting adjacent sensitive spaces the following is recommended:

- The pool shall be isolated from the building as a separate structure. The isolaNon material shall

be isolaNon pads of minimum 50mm thickness, with the formwork (Bondek or similar) being

supported on steel channels, with mounts, channel sizes and spacings to be determined by a

suitably qualified pool isolaNon supplier. The pads are to have a minimum deflecNon under

load of 6mm. The pool walls are to be sealed around the perimeter with 20mm thick closed

cell foam, with adequate lateral restraint pads spaced on all sides to prevent direct contact

between the pool walls and structure occurring from lateral forces. Refer to Appendix B for

details of the proposed pool isolaNon system.

5.1.3 Noise Impacts on Dwellings from Surrounding Sites

Surveys of the site and surrounds were conducted during May and June of 2017. During these surveys

commercial/industrial premises were identified as described in Sections 2 and 3. No significant sources

of commercial/industrial noise were identified which would be likely to result in exceedance of SEPP

N-1. In addition, Octave Acoustics is aware that developments have been approved, but not yet

constructed at:

2-6 Gough Street, Stage 1 (to the immediate east of the site); &,

17-21 Harcourt Parade (to the immediate southeast of the site).

It is understood that noise sources associated with these developments will be designed to comply

with SEPP N-1, SEPP N-2 and best practice criteria for noise sources not subject to these polices.

Further, it is understood that a preliminary assessment of the anticipated mechanical plant associated

with these developments indicates that SEPP N-1 compliance can easily be achieved using standard

plant specification, location and attenuation methods. As such it is expected that potential noise

impacts on the Proposed Development will satisfy the intent of the Interface Uses Policy.

5.2 Clause 37.02 Comprehensive Development Zone

Clause 37.02 requires proposed residential uses to include “appropriate attenuation measures as

outlined in AS3671” to “attenuate noise levels internally within the building”. AS3671 “provides

guidelines for determining the type of building construction necessary to achieve acceptable noise

levels indoors, as recommended in AS2107…” (refer to Table 19).



TABLE 19 – AS2107 RECOMMENDED DESIGN SOUND LEVELS

Type of occupancy/activity Design sound level (LAeq) range

Living areas 35 – 45

Sleeping areas (night time) 35 – 40

AS2107 provides a recommended design sound level range for apartment habitable rooms found to

be acceptable by most people occupying the space under consideration. As such it is considered that

compliance with the AS2107 design sound level range will result in an acceptable amenity outcome

that is comparable to that achieved under AS3671.

Compliance with the noise emission requirement of Clause 37.02 is achieved via compliance with

Clause 22.05 of the planning scheme as described in Section 5.1.

5.2.1 Façade Assessment

A 3-D computer model of the proposed development was established in CadnaA software, applying

the ISO9613 environmental noise prediction algorithms. The noise model was then validated using

results of on-site noise monitoring described in Section 3. The model was then run to calculate traffic

induced sound pressure across the façades of the most affected buildings. Traffic noise intrusion to

the various buildings was then calculated using standard ingress algorithms. An indicative

performance requirement for the glazing system specifications was then developed to meet noise

amenity targets consistent with AS2107. The indicative performance requirements are presented in

Table 20 below and should be interpreted with reference to the mark-up provided in Appendix C.

TABLE 20 – MINIMUM PERFORMANCE REQUIREMENT FOR FAÇADE SYSTEMS, RW

Occupancy Façade Colour

Code (refer

Appendix A)

Performance Requirement

for Glazing Assembly

including Frame and Seals

Indicative Glazing3

Living areas & bedrooms Purple Rw ≥ 402 10.5mm thick laminated glass /

12mm air-gap / 6.38mm thick

laminated glass

(such as Capral 425 Narrowline)

Living areas & bedrooms Dark red Rw ≥ 352 10.38mm thick laminated glass /

12mm air-gap / 6mm thick

standard glass

Living areas & bedrooms Bright red Rw ≥ 302 6mm thick float glass / 12mm air-

gap / 6mm thick float glass

Notes 1. Non-glazed elements of the façades shall be specified and constructed to have an Rw not less than

10dB greater than that required for the adjacent glazing as identified in this table.

2. Note that the Rw performance requirement may be reduced by approximately 5dB where glazing

separates apartment areas from winter gardens.

3. Indicative glazing is not provided as a specification but rather to inform the Contractor as to

the types of facade system that may satisfy the Rw performance requirements. Note that

there have been many instances of indicative glazing not satisfying the performance

requirements shown. It is the responsibility of the Contractor to ensure that the nominated

glazing assemblies satisfy the performance requirement. This is best done by obtaining a

laboratory test report from a NATA certified test facility.



5.3 Clause 52.43 Live Music & Entertainment Noise

Any live music performed within the Proposed Development will satisfy the ‘requirements to be met’

of Clause 52.43 providing that associated music noise levels do not exceed the applicable SEPP N-2

limits (refer to Section 4.2.2) at any adjacent residential premises (as defined in SEPP N-2).



6 Conclusion

Octave Acoustics was engaged by Caydon Property Group Pty Ltd to carry out a town planning stage

acoustic assessment as required to address conditions 51 a-g of City of Yarra planning permit number

PLN15/1176 for the proposed residential led mixed-use development at 2-6 Gough Street, Cremorne.

Octave Acoustics has reviewed the proposal, conducted site investigations and carried out acoustic

assessments addressing the noise related requirements of the pertinent clauses of the planning

scheme including:

Clause 22.05 Interface Uses Policy

Clause 37.02 Comprehensive Development Zone

Clause 52.43 Live Music & Entertainment Noise

The results of the investigations and assessments show that the Proposed Development will satisfy

the acoustic requirements set out in the relevant clauses of the planning scheme. In summary, both

noise impacts on the development and associated with the development can be mitigated using

standard building methods and management strategies to comply with both mandatory acoustic

requirements and Victorian best practice.



Gym Floor Isolation for Free Weights Areas

VIC (Head Office) T +61 (0)3 9353 4811 QLD T + 61 (0)7 3359 7100 WA T +61 (0)8 9204 1300 NSW T +61 (0)2 9748 3188 www.embelton.comwww.embelton.com202

TIMBER FLOATING FLOORS

Gym Floor Damped Spring NXS-14Up to 25mm Static Deflection, Damped Spring

DATASHEET NXS

M

APPLICATION

For gym floors where a high degree of isolation is required for applications where there is dropping of weights or other high impact loads.

FEATURES

• Internal damping rubber prevents oscillation under impact loads

• Rubber cup to reduce high frequency vibration transmission• Central isolated bolt hole for fixing the spring down• Non slip rubber mounts

ELEMENT TYPE

• NXS-14 spring mount• Max. load 125kg• 25mm static deflection• Spring colour green• Spring Constant 5.0kg/mm

60

16IsolatedBolt hole

FreeHeight

94Spring

InternalRubberDamper

Embelfoam Edge Seal

20mm ImpactaMat 900

2 layers of plywoodlaid at 90 degrees

Support Channel

75mm AcousticInfill

NXS-14secured with M12 masonryanchor

NXS INSTALLATION EXAMPLE

NXS

www.embelton.com VIC (Head Office) T +61 (0)3 9353 4811 QLD T + 61 (0)7 3359 7100 WA T +61 (0)8 9204 1300 NSW T +61 (0)2 9748 3188 www.embelton.com www.embelton.com203

TIMBER FLOATING FLOORS DATASHEET NXS

M

ACOUSTICAL ISOLATION

Although steel spring mountings provide particularly effective isolation of mechanical vibration, the spring itself, depending on its physical geometry, may transmit certain audible level frequencies.

To minimise these audible level transmissions, all mountings are fitted with resilient rubber mounts that provide a theoretical effectiveness of 98% in isolating such transmissions.

MOUNTING SELECTION

When selecting mountings, it is recommended that the calculated floor mass is increased 10-20% to avoid overloading of any mounting.

TECHNICAL ASSISTANCE

All Embelton offices can provide detailed technical assistance on the use of this equipment in specific applications.

BOLTING DOWN

If bolting is required, the lower cup must be located and fastened to the floor before equipment is placed on its mountings. Bolts must only be tightened a half turn more than hand tight.

This type of mounting is provided with a rubber isolated bolt hole which minimises transmission of acoustical frequencies to the floor.

FINISH

Steel surfaces are embedded in the rubber mounting cups. The springs are zinc-plated for corrosion resistance.

CONDITIONS OF SALE

These products are sold subject to the published Embelton General Conditions of Sale, copies of which may be inspected on request.

INSTALLATION

1. Lay out springs in pattern recommended for your specific installation. Contact Embelton if required for specific layout.

2. Pack springs to the same height.3. Fix NXS mounts to floor using M12 masonry anchors.4. Place Embelfoam Edge Seal around the perimeter of the room.5. Lay support channels on the NXS mounts.6. Insert acoustic insulation between the channels.7. Screw a layer of plywood to the top of the channels. The

plywood should be laid at 90 degrees to the support channels.8. Screw a second layer or plywood to the first layer at a 90

degree rotation.9. Glue a layer of 20mm ImpactaMat 900 to the plywood surface.

SPECIFICATION

Springs shall have 25mm deflection with rubber cups for high frequency isolation. They shall have internal damping rubber to minimise oscillation. They shall be type NXS-14 as supplied by Embelton.

NXS



Pool Isolation


APPLICATION

A lower cost swimming pool isolation system where a moderate degree of isolation is required. Often installed in pools over carparks, and rooftop plunge pools.

DESCRIPTION

The swimming pool pad isolation system is comprised of 3 layer Supershearflex pads with marine grade aluminium shims between layers.

FEATURES

• 17mm cross-ribbed elastomeric pads with marine grade aluminium shims between layers

• Maximum deflection of 9mm• 4 hardnesses available so that the best load/deflection

characteristics can be selected for an application

Swimming Pool Pad Isolation SystemTriple Layer Supershearflex

A

DETAIL A SCALE 1 : 10

SupershearflexPad Colour

Normal Working Load Max Load / Transition Load

Capacity kN

Deflection mm

Capacity kN

Deflection mm

Blue 36 7.8 45 9.3

Red 56 7.8 75 9.6

Green 175 7.8 110 9.9

Black 105 7.8 135 9.0

SUPERSHEARFLEX PAD ELEMENT TABLE

SSF POOL FULL ASSEMBLY

SWIMMING POOL TRIPLE LAYER PADS

N

SWIMMING POOL ISOLATION

54 450

225

DATASHEET SPSSF


DYNAMIC CHARACTERISTICS – RUBBER ELEMENT

Rubber mountings differ from spring mountings in that the natural frequency is a function not only of deflection, but also of the rubber hardness (durometer), an indication of rubber’s damping capabilities.

ALTERNATELY RAISED RIBS

This feature provides effective vibration isolation over the entire load range. Only the alternate ribs are engaged under light loads.

INSTALLATION

There are two methods of installation:1. If the pool is free standing, lay the pads on the structural slab

at 1.5m centres. Erect formboard to edge of pool, fill between pads with builders sand, level off and cover with plastic sheet. Pour the concrete for the pool structure and wash sand out once concrete has cured.

2. If the pool is poured against a building structure, lay down sheets of Embelfoam, then cut inserts in the foam where the Supershearflex pads are to be laid. Insert pads, cover with plastic and pour pool. The Embelfoam sheets act as lost formwork.



CONDITIONS OF SALE


SPECIFICATION

Vibration isolation pads shall be triple layer Supershearflex pads 450x225x50mm, with aluminium shims between layers, having 7.5mm deflection at normal working loads. They shall be type Supershearflex pads as supplied by Embelton.

N

SWIMMING POOL ISOLATION DATASHEET SPSSF


APPLICATION

Used as part of a complete swimming pool isolation system, Embelton swimming pool restraint pads offer resilient support between the side of a pool and its surrounding structure.

DESCRIPTION

Embelton swimming pool restraint pads are constructed from a layer of Supershearflex bonded to a corrosion resistant surface.

FEATURES

• Manufactured from prime oil-resistant elastomer• 17mm cross-ribbed elastomeric pads• Alternately raised ribs• Base plate is manufactured from stainless steel or galvanised steel for corrosion resistance

OPTIONS

• Can be supplied with different hardness elastomers for different applications

• Higher capacity pads and lateral restraint blocks can be made to order

Swimming Pool Buffer Pad for Loads up to 36kNSwimming Pool Buffer Pad 30kN at 3mm Deflection / Swimming Pool Lateral Restraint Block 36kN at 3.4mm Deflection

LATERAL RESTRAINT BLOCK

SWIMMING POOL BUFFER PAD

N

SWIMMING POOL ISOLATION DATASHEET SPBP

300

25

16

225

250

254-places

317

216

320

120

280

14

80

19


DYNAMIC CHARACTERISTICS

Rubber mountings differ from spring mountings in that the isola-tion efficiency is a function not only of deflection, but also of the rubber hardness (durometer). Isolation efficiency is usually less than indicated by static deflection alone.

For effective assessment of theoretical isolation efficiency, see Supershearflex Datasheet (Datasheet SSFLEX).

Laboratory testing has shown that the damping characteristics are almost constant over the load range, enabling a single value to be used for all hardnesses.

Damping Factor = C/CC = 0.13

ALTERNATELY RAISED RIBS

This feature provides effective vibration isolation over the entire load range. Only the alternate ribs are engaged under light loads.

FASTENINGS

• M24 bolts for swimming pool lateral restraint block. • M12 bolts for the swimming pool buffer pad.

WEATHER RESISTANCE

The swimming pool buffer pads are made out of oil-resistant elastomer bonded to either a stainless steel or galvanised steel mounting. This provides effective corrosion resistance for the harsh swimming pool environment.

INSTALLATION

The lateral load that needs to be restrained is normally 10% of the weight of the pool. For buffer pads, installation is dependent on whether the walkway or the pool is poured first. The buffer pad is attached to either the pool or the walk deck within the perimeter isolation join. For concrete decks, install flexible joins.

For the lateral restraint block, installation is carried out at the base of the pool after pool construction.



CONDITIONS OF SALE


SWIMMING POOL RESTRAINT INSTALLATION EXAMPLE

SPECIFICATION

Vibration isolation pads shall be a cross-ribbed elastomer 17mm thick with alternately raised ribs. The pads must be bonded to a corrosion resistant surface. The pads shall be type Supershearflex (Swimming Pool Buffer Pad) as supplied by Embelton.

Swimming PoolLateral RestraintBlock

Swimming PoolBuffer Pad

Swimming PoolSection View

SwimmingPool

FlexibleJoint

N

SWIMMING POOL ISOLATION DATASHEET SPBP



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2-6 GOUGH STREET, CREMORNE · Both the XL2 and calibrator carry current NATA certification or manufactures certification if less than two years old. 2-6 Gough Street, Cremorne AA422MB-01E02