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We've moved into a new flat almost a year ago. Eventually we found that our bedroom party wall does not meet the 45dB requirement. The wall is a 75 mm cavity wall made of 100mm aircrete blocks with pargecoat and plasterboard on dabs. We can hear our neighbors speaking or watching TV. The...

It's pretty new. Few years old flat block. The wall in question is Aircrete blocks and it's a separating wall between us and our neighbors.

Is there a recommended minimum and maximum mortar thickness for blockwork? I have a wall which seems to have uneven mortar levels of thickness. In some places it's very thin maybe 2mm .. Thanks

Yes it's possible to arrange that. My concern is could it actually help.

I've tried doing that. To me it seems it's coming from where the joint with the bend is. How would one resolve it? Give it a shake? Remove the joint and spray some of that WD40 ? Thanks

Yes I understand that. But there's also a bend at the top which goes atleast 20 -30cm to the right and then again up the ceiling. That would not be inside the metal studding and not plastered and therefore not insulated and could still cause noise?

Thanks for your reply. Do you see that it could be a problem to reboard the bend itself without having to lower the ceiling? Are there any other ways to do it?

Thanks for your reply. I'm sorry I'm a very unqualified person trying not to get cheated by the builders. Could you help me understand some of the things you've said? The pipe is holded by a metal ring which has rubber on the inside. The ring is then attached to a brick wall behind the pipe...

Hi, We live in a 9 storey building on the 8th floor. Above us there's a Penthouse flat who's bathroom soil pipe goes through the ceiling through our kitchen down to the ground level. The problem is that soil pipe is very noisy. I can easily hear the water running 7 meters away. It was...