As I’ve mentioned before, noise though party walls takes many forms and those which are loud are anti social sound that may just be resolved by outside authorities. From right now on we are going to talk about ordinary levels of sound like speaking that should not be read during the daytime. Assuming it is common amounts of noise which usually need to be dealt with we have to additionally think about flanking noise. Now flanking noise is noise which skirts all over the party structure via the hollow areas beneath floorboards as well as above the ceiling. With pre-war buildings these’re usually the only spots which might be treated to reduce flanking noise transmission because you will find not any cavities in the structural walls which would normally allow the free transmission of sound. Chimney breasts and internal attached walls are other areas that can enable flanking noise but tend to be impractical to safely and effectively soundproof.
Firstly we will deal with pre war houses as well as flats which typically have solid structural walls that do not require extra treatment. This means the floor and ceiling and these ought to be treated before doing anything with the party wall to lessen flanking noise in those locations. With the floor it is going to be required to lift the floorboards closest to the party wall surface and insert between the joists immediately adjacent to the wall Acoustic Mineral Wool. If the joists are dependent on the gathering wall in that case put in enough to coat 1200mm from the wall and along the area between the joists. If, on another hand, the joists are parallel to the structure, and then just insert the acoustic mineral wool in the space between the first two set of joists then replace the floorboards and screw them down. Once refitted, overlay with 2mm of SBM5 soundproofing mat which is going to seal up the bones of the floorboards.
Party Wall Surveyor Whitstable by using acoustic mineral wool should be carried out on the ceiling but if it’s a top floor bedroom ceiling there could be thermal insulation between the joists and it is not a good idea to remove it. The ceiling itself is often up-graded with an extra level of 15mm high density acoustic plasterboard that is going to add mass and subsequently enhance the audio blocking efficiency of the ceiling. Today the floor and ceiling were acoustically treated we are able to look at what may be completed to soundproof the gathering wall also I am going to cover this in the upcoming page of mine. In the meantime if you’re looking for any supplemental information to be able to soundproof a party wall structure check out our website via this link soundproof a party wall.