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5.507.4.1.1 Noise Exposure Where Noise Contours Are Not Readily Available
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Buildings exposed to a noise level of 65 dB Leq-1-hr during any hour of operation shall have building, addition or alteration exterior wall and roof-ceiling assemblies exposed to the noise source meeting a composite STC rating of at least 45 (or OITC 35), with exterior windows of a minimum STC of 40 (or OITC 30).
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5.507.4.1.1 Nonresidential Mandatory Measures, Noise Exposure Where Noise Contours Are Not Readily Available
Buildings exposed to a noise level of 65 dB L eq -1-hr during any hour of operation shall have building, addition or alteration exterior wall ...
California Green Building Standards Code 2019 > 5 Nonresidential Mandatory Measures > 5.507 Environmental Comfort > 5.507.4 Acoustical Control > 5.507.4.1 Exterior Noise Transmission, Prescriptive Method > 5.507.4.1.1 Noise Exposure Where Noise Contours Are Not Readily Available
5.507.4.1.1 Nonresidential Mandatory Measures, Noise Exposure Where Noise Contours Are Not Readily Available
Buildings exposed to a noise level of 65 dB L eq -1-hr during any hour of operation shall have building, addition or alteration exterior wall ...
California Green Building Standards Code 2016 > 5 Nonresidential Mandatory Measures > 5.507 Environmental Comfort > 5.507.4 Acoustical Control > 5.507.4.1 Exterior Noise Transmission, Prescriptive Method > 5.507.4.1.1 Noise Exposure Where Noise Contours Are Not Readily Available
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in ASTM 90 and ASTM 413. Where
partitions do not extend to the structure above, sound transmission
through ceilings and composite STC performance shall ...
California Building Code 2019 (Vol 1 & 2) > 12 Interior Environment > 1224 [OSHPD 1] Hospitals > 1224.4 General Construction > 1224.4.19 Noise Control