IFC 4.4.0.0 build 20261005 (IFC4X4_DEV_20260525) โ buildingSMART Working Draft. All content is under development.
Acoustic rating for this object. It is provided according to the national building code. It indicates the sound transmission resistance of this object by an index ratio (instead of providing full sound absorption values).
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2 contributor(s): Last change: Fix various typos Found via codespell by luz paz on 2022-02-25T19:05:38-05:00
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