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Enhanced Acoustic Balcony

Noise Reduction

About 3 - 7 dB(A)

Working Principle
Working Principle

Acoustic balcony with solid parapets and absorptive material on the ceiling has been adopted for noise reduction long time but it can only offer noise reduction of 2 to 3 dB(A) at most. To achieve a more substantial noise reduction, enhanced acoustic balcony was developed with addition of a number of noise reduction features including full-height wall at the side of the balcony, inclined screening panel projecting out from the top of the front parapet, and vertical screening panel above the front parapet in front of the balcony door.

Average Reduction
3 – 7 dB(A)
Average Reduction

Practice Note on Application of INNOVATIVE NOISE MITIGATION DESIGNS in Planning Private Residential Developments against Road Traffic Noise Impact

Effectiveness
Effectiveness
7 dB(A)

Max. noise reduction

Equivalent to increasing
6.30
X
Equivalent to reducing
80
%
Traffic Volume
How it Works
How it Works
Shield noise with parapet
Absorb reflected Noise
Shield noise with side-wall
Project Example
Project Example
Map View
Summary
Summary
Reduce noise

INMD effectively reduce traffic noise impact, and facilitate housing development and supply.

Maintain air ventilation

Unlike traditional double glazing cum air conditioning, INMD reduce noise while maintaining natural air ventilation.

Easy application

INMD in window and balcony forms are available. They can be flexibly applied in housing designs.

Next Type of Measure
Next Type of Measure

Acoustic Window (Baffle Type)