BS EN ISO 12354-3:2017 specifies a calculation model to estimate the sound insulation or the sound pressure level difference of a facade or other external surface of a building. The calculation is based on the sound reduction index of the different elements from which the facade is constructed and it includes direct and flanking transmission. The calculation gives results which correspond approximately to the results from field measurements in accordance with ISO 16283-3. Calculations can be carried out for frequency bands or for single number ratings.

The calculation results can also be used for calculating the indoor sound pressure level due to for instance road traffic (see Annex E).

This document describes the principles of the calculation model, lists the relevant quantities and defines its applications and restrictions.


Cross References:
ISO 12354-1:2017
ISO 717-1:2013 ED3
ISO 10140-1:2016
EN 12758-1
ONORM B 8115
ISO 10140-2:2010
ISO 16283-3:2016
DIN 4109:1989 (E)
ISO 11654:1997 (R08)


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