ᐅ Incorrect Installation of Sound Insulation Between Floor Slabs

Created on: 28 Sep 2017 12:52
A
Acze83
Hello everyone,
I am building a semi-detached house that stands on its own concrete slab. Now that the shell, including windows and roof, is in place, the site manager noticed that the two concrete slabs are connected by a rigid foam (which was apparently used during the pouring of the slabs). Between the houses, mineral wool insulation has been installed.

Supposedly, this affects soundproofing, but no one can currently quantify the defect in this condition.

Important: this defect will be documented and must be disclosed if the house is sold in the future.

Cutting through between the houses to remove all material in between would cost €15,000.

The construction company is offering me compensation of €500 and has given me 24 hours to decide.

Is that too little?

Looking forward to quick responses and thank you in advance!
M
Mike29
28 Sep 2017 23:26
I believe the expectation here is that due to the faulty insulation/separation of the floor slabs, sound might be transmitted more strongly between the floor slabs. Normally, "soft" mineral wool is used, but now it is rigid foam.