Part 1: Architect’s Guide 1 - 50 Partition frame: use of a double metal stud wall separate from the building improves performance Absorbent pad: the type and thickness of the insulation affects its quality. 2 1 3 4 5 7 6 8 Installation of a resilient joint under the panel rail of each frame is strongly recommended. 1 Angle 5 Plaster board 2 Seal 6 Rail (70 mm) 3 Mineral wool 7 Air-tightness seal 4 Upright 70 (independent double frame) 8 Closed cells moss Figure 6.6 Double skin partition 6.3.3 Floors In steel framed multi-storey buildings, the composition of the floors is completed with the installation of steel sheeted plasterboard to improve acoustic performance. This can be adapted for all types of floors: concrete decks, cellular structures, composite floors, etc. Several parameters influence acoustic performance: Thickness of the concrete deck Depth of the ceiling void under the slab (minimum 60 mm, maximum 100 mm) Type and number of plasterboard sheets (1 or 2 standard or special sheets) Type of absorbent mattress placed between the false ceiling and the slab.
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