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Sound transmission - STC vs Rw

NC-v4 EQc9:Acoustic performance
posted by  Indochine Engineering VN  on 

Hi, It is told that Rw is very similar to STC, I would like to ask for Sound transmission, Does LEED recognize the use of Rw (Weighted Sound Reduction index) and ISO 140 (acoustic) standard instead

3
Tue Apr 24, 2018, 1:37 pm

Flush Out for "During Occupancy" Case of a Major Renovation proj

NC-v4 EQc4:Indoor air quality assessment
posted by  Shabari Shaily Gerber  on 

Our project is an office building undergoing major renovation. The building will remain operational while the renovation is ongoing.

4
Tue Apr 24, 2018, 9:14 am

Losses through tank in HW loop

NC-v4 EAp2:Minimum energy performance
posted by  Francesco Passerini  on 

ASHRAE 90.1 states:

G3.1.3.6 Piping Losses losses shall not be modeled in either the proposed or baseline
building designs for hot water, chilled water, or steam piping.

2
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Tue Apr 24, 2018, 5:42 am
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Mon Apr 23, 2018, 3:40 pm

Pneumatic Controls - Monitoring Based Cx

CI-v4 EAc1:Enhanced commissioning
posted by  Christopher Lim  on 

I am currently working on a TI project for two floors of a mid-rise building. The current building uses pneumatic controls for the entire building.

0

About Spray adhesives, Material has voc g/l limit and Greenguard certificate.

NC-2009 IEQc4.1:Low-Emitting Materials—Adhesives and Sealants
posted by  Eunjoo Park  on 

My project is located in South Korea, so I open fall into difficulties to interpret manufacture data. 

0

Spray adhesives has VOC Contents and GREENGURAD certificate also. This material can be use?

NC-2009 IEQc4.1:Low-Emitting Materials—Adhesives and Sealants
posted by  Eunjoo Park  on 

My project located in South Korea. So I often fall into difficulties to interpretation manufacture data.

The material is "Scotch-WeldTM Hi-Strength Postforming 94 CA".

0

one product both meet two criteria in option2.

CI-v4 MRc4:Building product disclosure and optimization - sourcing of raw materials
posted by  Renaud Gay  on 

Dear All, for option 2 calculation, I have a question on it. My project is a CI retail project. They will use carpet which include recycled content.

8
Sun Apr 22, 2018, 7:09 pm