Forum discussion
NC-v4 EQc2: Low emitting materials
Our question concerns the credit compliance for wet applied products.
Although Rule 1113 references concrete admixtures such as concrete curing compounds, concrete surface retarders and form release compounds, are these products supposed to meet the requirements of that standard for VOC content? What about VOC emissions?
I note that concrete is excluded from credit scope as non emitting material...
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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?
Michelle Halle Stern
Senior Sustainability ConsultantGreenwood Consulting Group
121 thumbs up
December 12, 2016 - 12:28 pm
In order to decide whether you meet the intent of the credit by excluding the concrete as inherently non-emitting, ask yourself these questions:
1. Is the product inside the weather-proofing of the project, assuming it's not healthcare or schools?
2. Is the concrete still inherently non-emitting with the additives?
3. Is there a sealant or coating applied over the concrete?
4. Does your choice protect the health of occupants and installers?
Any sealant or coating must meet both wet-applied content requirements and general emissions evaluation.
Allison Zuchman
Senior Sustainability ConsultantThe Green Engineer
14 thumbs up
November 29, 2017 - 9:46 am
Following up to this thread, was it determined that concrete curing compounds need to meet the credit requirements? If so, did you find a concrete curing compound that meets the emissions testing requirements? Do any exist? Thanks.
Charline SEYTIER
CEO, Co-owner.ThemaVerde, France
15 thumbs up
December 1, 2017 - 12:53 pm
From our understanfing it does need to meet credit requirements for content and emissions, we did not have any in our project though. We required for the concrete form-release oil to meet the requirements also.
Debra a. Lombard
Construction Administrator/ LEED APBywater Woodworks, Inc.
47 thumbs up
December 1, 2017 - 1:10 pm
Allison,
Here are some LEED compliant ones per Mfgr:
http://www.scofield.com/concrete_sealers.html
:") Debra