Author Topic: Downstairs noise travelling through windows  (Read 695 times)

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MacedoI

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Downstairs noise travelling through windows
« on: November 28, 2018, 04:58:01 pm »
Firstly let me introduce myself. My name is Ivo and I just purchased one apartment from Barratt Homes.

Secondly apologies in advance if this is not the right section on the forum to post this.

We moved in less than a month ago and we’ve noticed that we can hear downstairs conversations. Not every word but murmurs. Same with music. We don't think the downstairs neighbours are loud at all, we suspect something else might be wrong.

Surprisingly, the sound seems to be coming from the windows or it's frames.
Ah, worth mentioning that this is happening mainly in the  living room where most of the walls are basically either windows/balcony or glass.

We asked around and few people claim they are experiencing the same thing. One of them actually mentioned that Barratt filled up the frames of his flat with sand?!
Anyway the development is relatively new so someone from Barratt is coming over tomorrow.

I was just wondering if anyone has experienced something similar and whether or not the developer manage to help at all.

Cheers,
Ivo


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Re: Downstairs noise travelling through windows
« Reply #1 on: November 29, 2018, 10:41:59 am »
I've never heard of filling presumably PVCu frames with sand!

I think what you have is "flanking" sound. 
If you are living in a timber frame block fire-stopping (fire socks) around every frame and horizontally, both sides of each floor level are required, not just for sound, but for fire.

I suspect there are gaps in this or it is missing or has fallen away.

If the block is traditional masonry brick and block inner skin, it would need to have cavity insulation to meet standards. again this should help with sound insulation but could be missing on the mainly window wall.


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MacedoI

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Re: Downstairs noise travelling through windows
« Reply #2 on: November 29, 2018, 11:39:53 am »
Hi. Thanks for the feedback.
The frames are not pvc but metal. And the frames are hollow.
Someone from Barratt came over and he pointed out that metal frames can be less efficient when it comes to block noise. They said they will look into it.

I don't think this is timber block. It's a pretty much standard brick block.

You are probably right re the problem being about flanking sound travelling to the flat. Also, when we hear it, most of the times if you go to the balcony you most likely not hear anything, just inside.

Would you say it's easy to determine whether or not there are gaps or insulation missing on the window frames?

It's still under the NHBC warranty and the developer representative is coming over today to evaluate the situation. Not sure how he'll do that - there'll be no noise if there's nobody downstairs.

In any case it's just odd and we are a bit afraid they just won't fix it.

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Re: Downstairs noise travelling through windows
« Reply #3 on: December 01, 2018, 07:24:23 am »
You could have an air tightness test and also an acoustic test carried out to determine where the fault lies.
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MacedoI

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Re: Downstairs noise travelling through windows
« Reply #4 on: December 02, 2018, 09:55:04 pm »
Thanks for the advice.
Should I get Barratt to run these tests or can I get them don via a third party company?
In which case any recommendations are welcome.

MacedoI

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Re: Downstairs noise travelling through windows
« Reply #5 on: January 17, 2019, 12:16:59 pm »
Still waiting for Barratt to send over engineers to evaluate the situation and do tests.
Should I get in touch with NHBC so they know about it?

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Re: Downstairs noise travelling through windows
« Reply #6 on: January 18, 2019, 06:03:04 am »
It is always a good idea.
Say you are still waiting for Barratt to act and copy the letter to Barratt.
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MacedoI

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Re: Downstairs noise travelling through windows
« Reply #7 on: January 22, 2019, 06:21:51 pm »
Thank you.
Fortunately few hours after my post they came back to me with a plan of action.
A contractor is coming over tomorrow to diagnose the situation. Not sure what that means exactly but I’ll wait and see.

MacedoI

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Re: Downstairs noise travelling through windows
« Reply #8 on: January 28, 2019, 08:44:25 am »
Good morning.
So couple of Barratt representatives came over. One of them I believe was/is part of the building’s engineering team.
They were quite quick to diagnose the problem. My apartment’s window frames are somehow "shared" with my neighbours. Meaning the framing starts with the floor below and end with the flat above. I think this setup is fairly common.

In any case they said that the installation could be faulty and no noise should be travelling up or down. Finally they said sometime this week they’ll get back to me with a resolution which is likely to be done from the outside of the apartment.
As it was another company installing the windows. which is likely to be the one to take action.

Not sure what to make of all this to be honest. I suppose I’ll wait for their update this week.

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Re: Downstairs noise travelling through windows
« Reply #9 on: January 30, 2019, 09:09:07 am »
That is good news.
Acknowledged the problem and given you and undertaking to do something about it.

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