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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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Forum discussion

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

Which flooring system in project scope must be compliant?

Hi everyone, I’m working on an office building project registered under LEED C&S2009 in which there are different flooring systems: . ceramic tiles in warehouses, restrooms and changing rooms; . natural stone flooring (travertine) in the reception; . unfinished paving system in office spaces. (office final flooring is not in project scope.) Which of this flooring systems must be compliant with credit requirements? I read on LEED User Bird’s Eye views that ‘it’s easier to achieve this credit if all your regularly occupied spaces are carpeted…..’: does it mean that only regularly occupied space flooring system must be compliance with credit prescriptions? Thank you in advance, Alessio

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Wed, 04/04/2012 - 15:22

Hi Alessio, All products installed within the weatherproofing membrane need to comply with the LEED IAQ requirements regardless as to if they are in regularly occcupied spaces or not. Please see the Credit Language for further details. Best, Lauren

Thu, 04/05/2012 - 08:59

Hi Lauren, about the April 2010 LEED ADDENDA from USGBC in which "USGBC responded to complaints that inert flooring materials shouldn't be subject to the testing requirements. Tile, masonry, terrazzo, cut stone, and solid-wood flooring without organic coatings or sealants now qualify for this credit without further testing" is not clear to me if Porcelain Stoneware flooring (consisting of a very fine body made of prized clays with the addition of feldspars, quartzes and kaolins, obtained by pressing of the atomized body and then sintered) is considered one of the inert flooring material that I don't have to list in my template or is considered as ceramic tile? Thank you in advance, Alessio

Thu, 04/05/2012 - 14:48

Hi Alessio, Please check out this past thread: http://www.leeduser.com/credit/NC-2009/IEQc4.3?page=1#comment-8416 Please let me know if you still have any questions. Good luck! Lauren

Wed, 03/08/2017 - 22:45

Hi Lauren, The link you provided to the other thread does not work. Can you clarify how LEED treats products like the Porcelain Stoneware flooring (consisting of a very fine body made of prized clays with the addition of feldspars, quartzes and kaolins, obtained by pressing of the atomized body and then sintered) mentioned above? Thanks!

Thu, 03/09/2017 - 01:28

Hi Kimberly, If it doesn't have any coating it would qualify without testing. Mineral based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic-based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirement. Porcelain would fall under this category. Hope that helps!

Mon, 03/13/2017 - 15:00

Hi Lauren, Thank you! So for stones like quartz (a bunch of crushed rock held together by some binder) because there is a binder holding the tile together, does this make it so the tile needs to meet FloorScore? Or are binders in this case okay, as long as the product doesn't have a top coat or sealer?

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