4.2.2.2.3

Perforated Interior-Finish Material

Code

Where a perforated interior-finish material is used in an INDOOR AQUATIC FACILITY, as for acoustic effects, the perforated material shall not be considered to be a vapor retarder unless it has a listed permeability rating less than 0.2 U.S. perm (11.4 ng·s-1·m-2·Pa-1).

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