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.
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.
Questions from committees and owners
Related: Soundproofing near a main road or flight path · How double glazing reduces noise · Double glazing for apartments