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Pilot-Credits EQpc24:Acoustics

Design or Construction Credit?

Is this s design or construction credit? From the credit form requirements looks like the NC levels will have to be measured, the rest criteria can be theoretically analysed or modeled. We are at a point to submit for design review; 1. Would it be appropriate to leave this credit for construction submittal when we can make measurements in lieu of modeling 2. What would be appropriated sampling strategy to perform the measurements. We have a hotel project with 127 guest rooms and we are planing to measure only 3 rooms which represent the three typical configurations. We have 7 meetings rooms which are in two typical configurations and we are planing to do two sets of measurements, one for each typical condition. For the admin office and the gym areas we are planing to do two additional sets of measurements and analysis.

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Fri, 03/02/2012 - 17:52

This is a design credit. The NC levels can be determined through acoustical analysis of the mechanical system. I would recommend contacting an acoustical consultant to help you finish up the design. If you wait to do measurements, it will be much more difficult to fix any noise issues with the mechanical system.

Fri, 03/02/2012 - 18:28

Thank you for the prompt reply, Nicolas! Waht is interesting is that the latest credit form even specifies the type of sound level meter that will have to be used to demonstrate the room noise levels. The form was updated yesterday March 1, 2012!

Fri, 03/02/2012 - 19:45

While the requirements have changed, the credit submittals still list "Room noise level calculations (NC, RC(N) or dBA)". The sound level meter requirements are adhering to ANSI guidelines, so it makes sense that they would be included. Oddly, they also still list speech privacy requirements. So it is possible that the credit will still receive further updates.

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