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FAQs about IEQc4.3 :

If I have no flooring products in the scope of my project, can I earn this credit?

How do I handle a polished concrete floor?

Should mineral-based finish flooring products (without any integral organic-based coatings and sealants) and unfinished/untreated solid wood flooring be documented on the IEQc4.3 LEED Online form, even though they are exempt from certification requirement

On a renovation, should flooring that is previously installed be subject to the credit requirements?

One flooring adhesive we are using falls under both IEQc4.1 and IEQc4.3, and is over the VOC limit. We are using the VOC budget method to meet IEQc4.1 requirements, but are we automatically disqualifed from IEQc4.3?

The credit requirements are allowed to exempt unfinished wood flooring from the credit requirements, but wood flooring is almost always finished. This is confusing!

I have an international project and my flooring products aren’t tested using any of the above standards. How can I tell if they still comply?

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NC-2009 IEQc4.3:Low-Emitting Materials—Flooring Systems

CARB certified product

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Seunghyun Cha
Engineer, LEED AP
HanmiGlobal
LEEDuser Basic Member
0 thumbs up

Dear, I have a question about IEQc4.3. Do the CARB certified floorings (PHASE 1 & 2) automatically meet the IEQc4.3 requirements? Actually, the floorscore program was originally designed as an emissions standard for non-wood or resilient floorscoverings. Although wood products can certify against the Floorscore protocol, CARB certification is the primary emissions standard used by the wood flooring industry.

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Josh Jacobs
Technical Information & Public Affairs Manager
UL Environment
LEEDuser Basic Member
356 thumbs up

Thu, 08/29/2013 - 11:20

The CARB ruling is focused on formaldehyde emissions from composite wood - which probably makes up part of the flooring, but this credit focuses on limiting about 35 VOCs emitting from the complete flooring product. This is due to the fact that it focuses on compliance with the standard commonly refered to as CA 01350 (which is the basis of FloorScore and makes up part of the requirements of UL GREENGUARD Gold). Having CARB compliant parts of the flooring might help the product meet the CA 01350 limits, but meeting them won't receive this credit alone.

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