Custom Audio Designs Ltd 

Part E | Robust Details | Building Regulations | Sound Insulation


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Ceiling Treatment - Board and Metal Frame

All separating floors should have a ceiling treatment of at least one layer of plasterboard nominally 8kg/m². Ceiling treatments to pre-cast unit separating floors may require 10kg/m² of plasterboard depending on the size of the void between the ceiling and pre-cast unit (see below).

The sound insulation performance of a ceiling treatment can be increased by placing acoustic mineral wool or acoustic quilt in the ceiling void or by using two layers of plasterboard. This will generally improve performance by 3-5dB or even more if our high performance acoustic quilt is used.
Proprietary metal frame systems can be used to hang the ceiling below downstand beams to form a flat soffit.


For in-situ concrete slabs supported by profiled steel decking:

  • Ceiling plasterboard board must be at least 8kg/m²
  • C must be greater or equal to 300mm for use with RD (E-FS-1).

For all floor constructions:

  • D must be greater or equal to 100mm with ceiling boards of 8kg/m².
  • D must be greater or equal to 75mm with ceiling boards of 10kg/m².

All ceiling joints must be sealed with tape or sealant.

Ceiling treatment must be installed in accordance with the manufacturers instructions.

SUITABLE PRODUCTS TO SPECIFY:


All information contained in these details is given in good faith but without warranty.
Custom Audio Designs reserves the right to alter the specifications of any product without notice.
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