ᐅ Install a second window for sound insulation

Created on: 17 Jan 2022 16:29
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maniman
Hello everyone,

Right outside my apartment, there is a construction site that will continue for several more years. Now I’m considering how to most effectively keep the noise outside. I thought about using the 10-15cm (4-6 inches) wide window sill to install a second window, so the sound would be blocked twice.

It would be like a box window, where both windows can open inward. The function must of course remain so I can still ventilate occasionally.

There are a total of four windows, each measuring 100x180cm (39x71 inches). Since I need to convince my landlord, I’m also looking for reasonable window offers. For cost reasons, I would prefer PVC windows. I’ve already found some models (e.g., Euro70) with soundproof glazing for about 340€ each. I suppose that price is hard to beat, right?

I’m absolutely not skilled at DIY, so this would have to be done by a professional. However, I wanted to get your opinion in advance on whether there might be potential issues with my plan or any important things I should consider.

I’d appreciate any information you can share :-)
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barfly666
17 Jan 2022 20:11
Well, I’d like to see the landlord who would allow that … I wouldn’t do it. The demolition and damage to the building alone are definitely not covered by any security deposit.

Besides, it’s pointless since the noise will travel throughout the entire building. It’s like the neighbor drilling holes with a rotary hammer … nothing you can do about it.
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aero2016
17 Jan 2022 20:52
Maybe it makes sense to consider soundproof windows right from the start?
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dab_dab
18 Jan 2022 11:07
Before you go into more detail, I would first test with foam sheets, a mattress, or something similar to see if the sound transmission through the windows or heating niche is noticeably reduced.

Given the expected construction work, I don’t see any chance of getting approval from your landlord for your solution.

Perhaps special heavy and multi-layered soundproof curtains could help? They are expensive but can be removed completely without leaving any residue.
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REH70Bi
18 Jan 2022 12:18
There are also proper curtains designed to absorb as much sound as possible. This way, you can also improve the appearance a bit visually 😉
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Alessandro
18 Jan 2022 13:05
I’m not sure whether I should cry or laugh because of the initial question 🤨 :p