Technical Booklet G Resistance to the Passage of Sound·Page 41·2.67

Wall type 2.1 – Dense aggregate concrete block with cavity

Sound-resisting separating wall constructed from two leaves of dense aggregate concrete block with 50 mm cavity and plaster finishes, achieving minimum 415 kg/m² mass per unit area.

Two leaves of dense aggregate concrete block with 50 mm cavity, plaster on both room faces (see Diagram 2.15) – minimum mass per unit area including plaster 415 kg/m2; minimum cavity width of 50 mm; 13 mm plaster on both room faces.

Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet G - Resistance to the Passage of Sound.pdf