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Our services in Building
Acoustics
(External Noise Intrusion, Transmission of Noise between Rooms, Noise Control in Buildings)
include :
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1. |
verification of
compliance with requirements of Building Code of Australia (BCA) - assessment of
transmission of noise between adjacent dwellings;
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2. |
verification of
compliance with recommendations of Australian/New Zealand Standard: Acoustics - Recommended
design sound levels and reverberation times for building interiors (AS/NZS
2107:2000);
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3. |
assessments of proposed construction sites exposed to aircraft noise -
assessments in terms of Australian Standard: Acoustics - Aircraft noise
intrusion -
Building siting and construction (AS 2021: 2000);
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4. |
assessments of proposed construction sites exposed to road traffic noise -
assessments in terms of Australian Standard: Acoustics - Road traffic noise
intrusion -
Building siting and construction (AS 3671: 1989);
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5. |
measurements and assessments of road traffic noise on proposed
construction sites (homes, schools, churches, hospitals) for the purpose of
Development Consent
from local councils - assessments according to Environmental Criteria for Road
Traffic Noise laid down by
Environment Protection Authority of New South Wales (EPA), now incorporated
in New South Wales Department of Environment and Conservation (DEC);
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6. |
determination of building facade insulation using traffic noise, by
two-channel measurements with
Brüel & Kjær (B&K) Modular Precision
Real-Time Sound Analyzers type 2260 Investigator,
with Sound
Intensity Software BZ7205;
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7. |
assessment and control of noise from building services (air-conditioning
systems, ventilation fans, cooling towers, pumps, compressors, emergency
generators);
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8. |
scanning of walls, windows, doors, ceilings and floors
to discover
areas of noise penetration - control
of noise transmitted between adjacent
rooms, control
of intrusion of external noise and control of noise escaping
from clubs, discotheques and pubs;
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9. |
in situ determination of airborne sound insulation: |
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(a) |
of building
elements and |
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(b) |
between
rooms: |
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measurements according to ISO
15186-1:2000 - Acoustics: Measurements of sound
insulation in buildings and of building elements using sound intensity;
and |
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based on these measurements, calculations
of the Weighted Sound Reduction Index (Rw) (replacement
of Sound
Transmission Class - STC) according to Australian/New Zealand Standard: Acoustics - Rating
of sound insulation in buildings and of building elements -
Part 1: Airborne sound insulation (AS/NZS 1276.1:1999 and
ISO717-1:1996). |
NOTE that
our services listed
under 8 and 9 are based on
state-of-the-art measurements of
sound
intensity. |
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