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Acoustic Glazing

Acoustic Windows for Apartments and Units

Units on main roads, rail corridors and under flight paths can get up to 45dB of noise reduction with acoustic double glazing in a properly sealed frame.

Since 2011Sydney Strata Projects
uPVC & AluThermally Broken Systems
10 YearProduct Warranty
In-HouseInstallation Team

Noise is the most common reason apartment owners call us. Many Sydney unit blocks sit on arterial roads, beside rail lines or under the airport flight paths, and their original single glazed aluminium windows do almost nothing to stop it. Glass alone does not solve the problem, because sound also gets in through gaps in the seal and through a frame that vibrates with it. Acoustic windows deal with all three.

What makes a window acoustic

  • Acoustic laminated glass, with an interlayer that damps vibration instead of passing it on
  • Two panes of different thickness, so they do not resonate at the same frequency
  • A frame that seals hard against the sash on every side, with no gaps for sound to leak through
  • Careful sealing between the new frame and the wall, which is where poor installations lose most of the benefit

Specified for the noise source

Traffic, trains and aircraft produce different sound, and the glass specification should follow the source. Low-frequency rumble from trucks and buses needs a different make-up to aircraft noise. We look at where the noise comes from and which rooms it affects before specifying, so the money goes into the openings that matter.

uPVC or aluminium for noise

Multi-chamber uPVC frames with compression seals give the best results for noise. Thermally broken aluminium with acoustic glass also performs well where the building needs to keep an aluminium facade. See the full comparison.

Common questions

Questions from committees and owners

With acoustic laminated double glazing in a well-sealed frame, noise reduction of up to 45dB is achievable. The result in a given unit depends on the noise source, the glass specification and other paths such as vents and walls.
Standard double glazing helps, but aircraft noise is best handled with acoustic laminated glass, panes of different thickness and a tight seal. We specify the glass for the flight path rather than using a standard unit.
Noise finds the weakest opening, so the rooms you want quiet need every window and door treated. Bedrooms facing the road are usually the priority.

Related: Soundproofing near a main road or flight path · How double glazing reduces noise · Double glazing for apartments

Find out how quiet your unit could be

Free measure, and glass specified for your noise source.

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