Technical Booklet G Resistance to the Passage of Sound·Page 41·2.68
Wall type 2.2 – Lightweight aggregate block with cavity
Sound-resisting separating wall constructed from two leaves of lightweight aggregate block with 75 mm cavity and plaster finishes, achieving minimum 300 kg/m² mass per unit area using 100 mm block leaves.
Two leaves of lightweight aggregate block with 75 mm cavity, plaster on both room faces (see Diagram 2.16) – minimum mass per unit area including plaster 300 kg/m2; minimum cavity width of 75 mm; 13 mm plaster on both room faces. The required mass per unit area would be achieved by using: 100 mm block leaves.
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