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NC-v4 EQc2: Low emitting materials
See LEEDuser’s guidance on NC-v4 EQc2 »
Maximum threshold for General VOC emissions compliance?
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See LEEDuser’s guidance on NC-v4 EQc2 »
FAQs about EQc2:
Are throw rugs subject to the credit requirements?
What are the adhesives and sealants to be included in the documentation?
Is there a VOC budget method for this credit?
What are the limits on the VOC budget method?
Do products applied to the weather barrier need to comply with VOC thresholds?
If one part of my multicomponent wall system is not compliant, can I still get full credit?
Leanne Conrad
Project ManagerEntuitive
20 thumbs up
February 17, 2017 - 9:34 am
From what I have researched and understand, the actual value does not matter, what matters is that the test was done and the results available for project teams to review. Hopefully someone who has submitted a project or CIR can speak up, but that is what I was able to find when I had a similar question earlier this year.
Björn Schön
DAW SEFebruary 17, 2017 - 9:42 am
That's also my understanding. The products have to be tested according to CPHv1.1-2010 and have to fulfill the requirements of the included list of certain VOCs. But the total VOC is not limited in the emission requirement. But you still have to fulfill the additional VOC content requirements for wet-applied products (CARB, SCM, SCAQMD etc.)
Joanna Switzer
Sustainability Project ManagerAtkins
59 thumbs up
February 17, 2017 - 4:23 pm
Leanne & Bjorn- Thanks for the quick feedback - good to know I wasn't missing anything.
So, wet (g/L) VOC limits are enforced/clearly stipulated and CPHv1.1-2010 general emissions (ug/m3) are more about product transparency - at least as far as LEEDv4 is currently concerned!
Reinhard Oppl
Independent consultant on VOC issuesformerly with Eurofins Product Testing A/S
329 thumbs up
February 18, 2017 - 7:18 am
Caution, please. Maybe this is about wording ... but it was made clear by US GBC that for wet applied products, both VOC content limits (in the product) and CDPH VOC emissions limits (in the air after application) will apply. This is valid for LEED v4, not for earlier versions. Total VOC (TVOC) is another term which shall characterize the sum of all emitted VOC (in the air). Total VOC must not be mixed up with VOC content, even though this also is sort of all (or you could say total) VOC - but in the product, not all VOC or TVOC emitted into air.
Michelle Halle Stern
Senior Sustainability ConsultantGreenwood Consulting Group
121 thumbs up
February 19, 2017 - 12:53 am
To put it all together, there are 3 different requirements for wet applied materials:
1. Meet the general emissions requirements (CDPH standard method 2010)
2. Report the range of TVOC (for transparency only)
3. Meet the g/L content requirements.
Items 1 and 2 are true for all products eligible for this credit. Item 3 is unique to wet-applied materials.