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5.507.4.1.1 Noise Exposure Where Noise Contours Are Not Readily Available

Los Angeles Green Building Code > 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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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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Related Code Sections


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 ...
Los Angeles Green Building Code > 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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The signal-to-noise ratio for internally generated noise in assistive listening systems shall be 18 dB minimum ...
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