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Are we required to have an acoustical consultant in order to attempt this credit?

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Our project has small meeting rooms in an open-office plan. This situation appears to require an STC of 50. However, this level seems to be (unrealistically) high, especially considering the doors in the wall partition. STC 50 with a (closed) wall can be

Sound transmission requirements for adjacency combinations are listed in Reference Guide Table 1, but not all combinations are included. For example, an STC rating requirement is not provided for conference room and standard/executive office adjacency. Is

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NC-v4 EQc9:Acoustic performance

Alternative Compliance Path to achieve Acoustic Credit

Do you know if there is alternative path to achieve EQ Credit 9 outside the US? I'm working with a Project in Germany and we have a probem with Sound Transmission. German Standards does not use STC Rating, all Values of Sound Isolation are in dB. Is there any way to convert those dB Values into STC? I know that most of the German Standards are more strict than US Standards, that's why I believe we would be able to achieve this Credit, just I don't know hot to prove it to USGBC. I will be very grateful for any helpful answer!

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Daniel Hicks
Daniel Hicks, E.I., INCE
Geiler & Associates
LEEDuser Basic Member
175 thumbs up

Thu, 03/05/2015 - 18:34

IEQc9 does allow for an alternative compliance path based on local standards. You just have to show that the local standard you choose to use is equivalent to the ANSI S12.60-2002 standard.
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Lise Dannesboe
Sustainability Manager
COWI
LEEDuser Premium Member
54 thumbs up

Tue, 11/13/2018 - 11:10

Dear Wioletta I was just curouis to here if you made this comparison and succeed to show that you german standards was more stringent than the american? And did you or any one else i EU suceed with this credit? Kind regards, Lise

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