Improve sound insulation of windows

Hello everyone,

is there a way to improve the soundproofing of windows afterwards? I once read something about films etc., but I don’t know if that really helps. I was told that windows with better soundproofing have a gas in the chambers. Could that possibly be "retrofitted"?

Thanks in advance

Is there a way to improve the soundproofing of windows afterwards? I once read something about films, etc., but I don't know if that really helps. I was told that windows with better soundproofing have a gas in the chambers. Could this possibly be "retrofitted"?

Hello Gerd,

Retrofitting is generally always possible, the question is only what makes sense! An insulated pane with the structure 4 Float / 16 SZR / 4 Float has 32dB, an insulated pane with the structure 6 Float / 16 SZR / 4 Float has 36dB!

The film could be feasible, but I think it is not a good approach! The film will certainly blur the view.

Gas in the chambers?? For all windows from Ug 1.3W/m² onward, there is only one noble gas in the SZR!

Argon: (Argon (from ancient Greek ἀργόν "the lazy element"; due to its chemical inertness) is a chemical element in the periodic table of elements with the symbol Ar and atomic number 18. The colorless and odorless inert monoatomic gas is the most common noble gas in the Earth's atmosphere)

or

Krypton: (Krypton (from ancient Greek κρυπτός kryptós "hidden") is a chemical element in the periodic table of elements with the symbol Kr and atomic number 36. The colorless and non-toxic noble gas occurs in low concentration (about 1:1,000,000) in the air.

In general: Soundproofing = materials heavy = poor insulation
Thermal insulation = materials light = poor soundproofing

Regards Thorben Müller

Hey ,

Thanks for the reply. We have the following glass: Thermal insulation glass Ug=0.6 Thermix WK

I have checked again and a gas should also have been used for the thermal insulation. So I probably won’t be able to do anything more there. The other difference is the film between the two outer panes, their thickness and the distance between the panes. Since I cannot change that, I could only add another pane on the outside, but whether that is possible? I was looking for a reasonably cost-effective solution. Cost-effective compared to buying new.

I was looking for a reasonably inexpensive solution. Inexpensive compared to buying new.

how about roller shutters or window shutters, achievable with limited effort. Are you sure the noise is not coming through the wall?

As the most cost-effective measure, I suggest wearing capsule ear protection according to DIN EN 452.

I consider the exterior wall itself with 24cm aerated concrete hardly responsible, windows are in any case worse.

Roller shutters/shutters... added externally afterwards?
20,000 EUR will be spent on that... at least.

why not place an additional window inside in front of the affected windows. I once studied in such a building and it was quite effective.