Technical Booklet G Resistance to the Passage of Sound·Page 95·4.27
Separation distance and ceiling height considerations
A minimum separation of 125 mm is required between the upper surface of the independent ceiling and the underside of existing floor construction; designers should verify adequate ceiling heights are available in all rooms being treated.
Note – This construction involves a separation of at least 125 mm between the upper surface of the independent ceiling and the underside of the existing floor construction. However, structural considerations determining the size of ceiling joists will often result in greater separation. Care should be taken at the design stage to ensure that adequate ceiling height is available in all rooms to be treated.
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