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6811 Waterproofing and acoustic and/ or thermally insulating underlay systems (0)
Waterproofing liquid or membrane treatment combined with an acoustic material as a system, applied to floor or wall surfaces to provide a waterproof and noise reducing barrier, etc., under internal wall and floor finishes, and some external deck finishes such as tiles. Waterproofing liquid or membrane treatment combined with a thermally insulating material as a system, applied to floor surfaces to provide a waterproof and thermal insulating barrier, etc., under internal wall and floor finishes. When not applied as part of an exposed external waterproofing membrane system or part of the floor finishing system
6812 Waterproofing underlays (17)
Waterproofing liquid or membrane treatment system, applied to floor or wall surfaces to provide a
waterproof barrier, etc., under internal wall and floor finishes, and some external deck finishes such
as tiles. When not applied as part of an exposed external waterproofing membrane system or part of
the floor finishing system
6813 Acoustic underlays (2)
Acoustic material, including sheets, tiles and pads, applied to floor or wall surfaces to provide a noise reducing barrier, under internal finishes such as tiles or timber. When not applied as part of the floor finishing system
6815 Acoustic barriers (3)
Acoustic material, including sheets, panels and pads, used as a noise reducing barrier as part of a building element or to isolate noise sources such as equipment, pipes etc. Usually not exposed except for service areas.
6816 Sound absorption overlays and underlays (4)
Acoustic absorption material, including sheets, panels and pads, used for reverberation control. Largely used as an underlay under sound transparent linings/cladding or as an overlay over normal linings/cladding pre-finished or with sound transparent covering/finish. Usually not exposed except for industrial and service areas, although pre-finished products may be exposed in more situations.
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