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Author Topic: Soundproofing Corner Windows  (Read 2289 times)


  • Guest
Soundproofing Corner Windows
« on: February 28, 2017, 07:40:21 AM »


As a new home owner I never heard the train pass by often during the day, but after staying there overnight there are loud train whistles keeping me awake.  I'm looking for some suggestions to soundproof my bedroom.  I don't hear the rumbling from the track but I do hear the annoying whistles constantly throughout the night.

Problem with putting another layer on is that I have these corner windows.  I also have a sliding door on the large windows that I want to soundproof.

I assume most of the sound is coming from the windows as there seems to be a good quality seal around the 2 pane windows themselves.

Would roller shutters help in this situation?  I have found a company that can install a corner version of roller shutters.  They said they will be able to block some of the noise up to 10 db.

Any suggestions would be great.

Randy S

  • Guest
Re: Soundproofing Corner Windows
« Reply #1 on: March 01, 2017, 12:00:09 AM »

Please post company that claims 10db drop so I can review...I find it very hard to believe a roller shutter to provide a 50% human perceived reduction of sound..

In all my years of doing soundproofing I have found that without (mass / gap / mass) in a perfect air tight sealed system to ever achieve such values.

Lets take a look I am always open to new designs that achieve such values.

If we find that it is miss leading then the only real solution is to install a second pane which could be done professionally by a window company.

Let me know.

Randy S.


  • Guest
Re: Soundproofing Corner Windows
« Reply #2 on: March 01, 2017, 04:44:58 AM »

The name of the company is Alulux

There's an icon on the home page that says Noise Reduction and it states "Your roller shutters can reduce distracting outside noises by 10 decibels."

Does it need to be perfectly air tight to achieve great sound proofing values?  Could I work on trying to silicone all the edges of the shutters to improve it?

If I install a second pane would I then just replicate the corners but with laminate glass?.   It's quite a large area and I assume theres no cheaper solution.  Would I then have two sliding glass doors?

Randy S

  • Guest
Re: Soundproofing Corner Windows
« Reply #3 on: March 01, 2017, 04:44:59 PM »

thank you posting the link for me to review.
it actually states "reduce outside noise by up to 10 decibels." which is what I would expect to see considering they would not have enough information to make the claim of a true 10 db drop.
Even our systems and high end recording studio window systems could not make a solid claim on decibel reduction.
Normally we would state this in a STC rating as apposed to a decibel reduction because the reduction would be based on the frequency and intensity of the noise source and distance from source.

A good analogy I use is " driving a brand new car down the road with the windows closed gives you a value of noise reduction, then simply crack the window less then a 1/8" and watch what happens"

In all soundproofing systems you want air tight water tight for maximum performance. If you end up with gaps or leaks you are just losing some of the value invested.

also your assumption on the double sliding glass door is correct, this has been the only solution we can come up with short of buying a high STC slider.

Randy S.