Technical Booklet G Resistance to the Passage of Sound·Page 51·2.100
Independent panels specification
Panels used in sound-resistant wall construction must meet minimum mass and construction requirements to be effective.
These panels should meet the following specification –
minimum mass per unit area of panel (excluding any supporting framework) 20 kg/m2;
panels should consist of either –
(a) at least 2 layers of plasterboard with staggered joints; or
(b) a composite panel consisting of 2 sheets of plasterboard separated by a cellular core;
if the panels are not supported on a frame they should be at least 35 mm from the masonry core; or
if the panels are supported on a frame there should be a gap of at least 10 mm between the frame and the masonry core.
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