Insulation is sometimes installed close to a party wall for soundproofing. An expert should identify the source of the noise and also how the noise is being transmitted before any soundproofing work is carried. Noise can be ‘airborne’ through it is more common for it to occur through a wall, roof or floor structure. So, soundproofing may be used to help reduce the transfer of noise.
In certain situations, party wall insulation is made effective by simply placing it adjacent to the party wall but not fixed in position and then a structure is brought into place to hide it. The key to good insulation is density, which you ought to consider when deciding on which material to use.
The provision of party wall insulation may be regarded as ‘notifiable’ under the Act, as case law has proven that even disturbing the plaster on a wall can be relevant to the Party Wall Act. So, by carrying out these works, the party wall needs to be cut into and so a Notice will need to be served. The Adjoining Owner(s) will need to be given the opportunity to respond to the Notice.
