I'm just creating some internal walls that are sound insulated. How would you best advise I go about this. PlusDesignBuild doesn't have the option to add insulation to internal walls.
Should I instead model as a lightweight clad wall, and creat plasterboard material for the other side (plasterboard doesn't exist as a cladding out of the box)
Best option for me would be if internal walls had the ability to be insulated, but I cant see that option