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

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Floor tile system components

Project location: United States

May 22, 2020

Monica Verastegui

SWL Architects PS

LEEDuser Premium Member

1 thumbs up

Project location: United States

May 22, 2020

Our project has a porcelain tile floor with an anti-fracture and waterproofing membrane under it. Does the membrane product need to meet requirements for IEQc4.3?

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Cecile de Villemeur

LEEDuser Basic Member

2 thumbs up

May 27, 2022 - 12:55 pm

I would reply yes...

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See LEEDuser’s guidance on NC-2009 IEQc4.3 »

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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