12x9m left side house building insulation detail drawing

12x9m left side house building insulation detail drawing is given in this file. In this side, the sound is arrested by the chimney caps. Acoustic insulation is nothing, soundproofing in a room or house from outside which is arrested by the tightened up existing door or windows, adding of caps to chimney, etc., For more details download the AutoCAD drawing file from our cadbull website