Log in
Forum » NC-v4 EQc9
Topic

Sound Isolation ACP?

NC-v4 EQc9: Acoustic performance
posted by Brightworks Sustainability on Apr 25, 2017, 7:42 pm

HI all, is anyone familiar with an alternate option for complying with the sound isolation requirements? My project is so close to meeting this but it isn't feasible to provide additional layers...

Last reply: Jill Kurtz, Mar 30, 2018, 10:54 am

defination occupied spaces vs. ASHRAE 2011 handbook

NC-v4 EQc9: Acoustic performance
posted by Ydo Schuuring on Nov 20, 2017, 2:14 am

dear all,

Credit IEQc9 requires that all occupied spaces should meet the requirements of HVAC background noise and refers to 2011 ASHRAE handbook, chapter 48, table 1. This table gives the...

Last reply: Levan Natadze, Feb 16, 2018, 6:56 am

Compliance through furnished measurement

NC-v4 EQc9: Acoustic performance
posted by Martin Stowell on Aug 16, 2017, 12:47 pm

Is it possible to achieve compliance for this credit by taking reverberation measurements once the multifamily units are occupied and furnished? The inclusion of furniture will have a significant...

Last reply: Ken Shook, Feb 15, 2018, 5:43 pm

Museum Building / Gallery Areas

NC-v4 EQc9: Acoustic performance
posted by O Moltay on Sep 27, 2017, 9:15 am

Hi, we have a museum project with general exhibition areas: are there specific values for "...

Last reply: Ken Shook, Feb 15, 2018, 5:42 pm

Power generator

NC-v4 EQc9: Acoustic performance
posted by Alicja Bieszyńska on Apr 6, 2017, 7:00 am

Does this credit take power generators into account? It's not a HVAC equipment, however it's quite loud...

Last reply: Tristan Roberts, Aug 30, 2017, 1:28 pm

Can Building Envelope CxA be the acoustical engineer

NC-v4 EQc9: Acoustic performance
posted by Edgar Arevalo on Aug 7, 2017, 4:49 pm

I know under LEED that the design engineers cannot also be the Cxa, but does that also apply for an entity/company who is the building envelope...

Last reply: Scott Bowman, Aug 29, 2017, 1:06 pm

Reverberation Time in Very Lage Open Office Areas

NC-v4 EQc9: Acoustic performance
posted by Levan Natadze on Jul 18, 2017, 1:32 am

Hello,
Cold you please provide a tip, how to achieve reverberation time 0.8 in very large open office areas. Good absorptive materials do mot work for so large spaces as 1,000 sq. meters,...

Reverberation Time and BIG Open Area

NC-v4 EQc9: Acoustic performance
posted by Avtua Kraveishvili on Jul 14, 2017, 2:36 am

If open plan office is linked with entrance, guest circulation areas and corridors from another zone (which totally takes about 2'000 m2), how we can calculate and predict...

Reverberation Time and Volume

NC-v4 EQc9: Acoustic performance
posted by Avtua Kraveishvili on Jul 14, 2017, 2:19 am

Hi, I have project where is several open plan offices with different volumes. LEED Acoustic Performance requires T60 below 0.8 sec. But it's impossible to get this result for 3'000 square cube...

STC rating for the combination office- hallway

NC-v4 EQc9: Acoustic performance
posted by Florian Schmidtchen on Jun 2, 2017, 11:24 am

Dear all,
I have a question according to meet the composite sound transmission class (STCC) ratings listed in Table 1:
Do we have to meet the...