C – Performance specifications

appendix C



Performance specifications



Tables


C.1  Acoustic absorption performance levels of common branded products


C.2  Acoustic absorption performance levels of generic room finishes



Figures


C.1  Masonry wall specifications


C.2  Metal stud-wall specifications


C.3  Timber stud-wall specifications


C.4  Masonry floor specifications



C.1  Absorption


Table C.1  Acoustic absorption performance levels of common branded building products


images


images


images


Table C.2  Acoustic absorption performance levels of generic room finishes








































































































































Standard room surfaces


NRC


w


Absorption class


6mm pile carpet on foam underlay


0.30–0.35


0.24–0.38


E


Brickwork


0.05


0.02–0.04


n/a


Carpet and underlay


0.55


0.4–0.5


D


Carpet tiles


n/a


0.4


D


Child


n/a


0.2–0.3


n/a


Concrete


0.05


0.02–0.04


n/a


Desk and chair


n/a


0.5


n/a


Dryline/plasterboard on dabs


n/a


0.02–0.04


n/a


Dryline/plasterboard on frame


0.05–0.1


0.05–0.1


n/a


Floorboards on joists


0.1


0.09


n/a


Glass


0.05–0.15


0.05–0.1


n/a


Marble


0


0.01


n/a


Parquet


0.05–0.10


0.12


n/a


Perforated metal ceiling tray with


n/a


0.3–0.7


D–C


 mineral fiber behind


Person


n/a


0.4


n/a


Plaster on block/brick


0.05


0.02–0.05


n/a


Rubber


0.05


0.05–0.07


n/a


Steel


0.1


0.07–0.10


n/a


Tiles


0.01


0.02


n/a


Timber doors


0.1


0.10–0.15


E


Upholstered seat


n/a


0.5–0.7


n/a


Vinyl on concrete


0.05


0.03


n/a


Water


0


0.01


n/a


Wood panels


0.01


0.1–0.2


E



C.2  Insulation

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Oct 22, 2020 | Posted by in General Engineering | Comments Off on C – Performance specifications
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