Soundproofing Party Wall & under floor

[Smalltowngirl_95]

We have recently bought a 1930s semi-detached house which we believe has double skin party wall. However, we can hear all types of noise such as dogs barking, sneezing, television and shouting.

We have already installed a soundproof system directly on the party wall which consists of 50mm acoustic insulation and a double layer of acoustic plasterboard framed out.

However we can still hear a lot of noise which makes me think it is now coming up through the floor? Our floor in our living room/dining is a timber suspended floor. Recently had new double glazed UPVC windows installed too.

Would we need to take up our floorboards in the living room/bedroom and put in insulation? If so would we need to do all the floor or ideally come out a metre or so? I'm not sure if there is gaps as well where the joists run into the party wall.

Any help/advice would be greatly appreciated as it's having a negative impact on our day to day lives.

 

[endecotp]

Which way do the joists run?

Don’t expect miracles.

 

[accelerator]

Would we need to take up our floorboards in the living room/bedroom and put in insulation? If so would we need to do all the floor or ideally come out a metre or so? I'm not sure if there is gaps as well where the joists run into the party wall.

It's likely that the suspended floor is causing an issue.

You'd need to do the whole floor, 1m out would still leave a lot uninsulated, so no real difference.

I'm sure there'll be a lot of info online if you look for it.

 

[StephenStephen]

It's likely that the suspended floor is causing an issue.

You'd need to do the whole floor, 1m out would still leave a lot uninsulated, so no real difference.

I'm sure there'll be a lot of info online if you look for it.

I'm wondering if there might be a misunderstanding here about the direction the sound is travelling.
Is it that the sound is coming sideways from rooms in the house next door?