Ok so i asked the building control officer what insulation to put between my party walls
Im dividing an 18m×12m portal frame barn into 3 houses
He advised me to employ an acoustic company to advise
Surely theres some format to this . I am using cavity wall blockwork
So what can i do other than use the acoustic slab wool insulation then maybe some special noise proofing plaster on these walls after
Help!!@