double Acoustic glass or triple acoustic glass for bedrooms

[yinqian1116]

Hi there,

My property is really close to main road and the tube station, I have installed double glazed laminated glass for the living room (4mm toughen Low e K glass + argon gas gap + 6.4mm laminated glass, a total of 28mm thickness), although it reduces a lot of noise, but it's still quite noisy for me.

For bedrooms, I was told double glazed with acoustic is better than standard triple glazed with 28mm total thickness. Any idea if triple glazed with acoustic glass same 28mm thickness or 44mm thickness is better or not much different than the 28mm double glazed with acoustic glass? Thank you.

Acoustic glass is 6.8mm thickness btw, there are 8.8 up to 12.8 mm thickness but was told not much different and weight increase tremendously.

Should I do double glazed 28mm thickness acoustic window (4mm+argon gas bar+ 6.8mm acoustic glass) or (4mm toughen glass+ argon gas bar + 4mm toughen glass+argon gas bar+ 6.8mm), does the 28mm thickness or 44mm thickness matter? Did anyone use both and can tell me the difference? Thank you.

Not much help but we have new double glazing and I can't hear BILs tractor parking at the door.

Triple glazing gives far less predictable results than double glazing for sound reduction.

Sometimes triple glazing resonates like a drum at certain frequencies so I’d never spec it in a noisy environment.

But some people swear by it....

The spec you stated is pretty much the 1st step after standard 28mm glazing for noise reduction.

Typically this will give a 7db improvement over standard. An acoustic resin or laminated glass would only improve this slightly, probably not enough for you to hear.

If you want real good results you need to look at airport spec double glazing which will typical be something like this
10mm laminated spacer 6.8 or 8.8 acoustic laminate. This would usually be in a 38mm or 44mm unit and will give a predictable 45ish dB reduction. If you want any higher you need to go secondary but you’ll soon find your building fabric becomes the limiting factor after about 50db.

The weight of these units will limit sizes and styles.