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NC-v4.1 EQc2:Low-Emitting Materials

Concrete bonding agent

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Laura Charlier
LEED Services Director
Group14 Engineering, Inc.
LEEDuser Premium Member
47 thumbs up

We had a submittal come in that is proposing the use of a "bonding slurry" to be used above grade between the metal deck and concrete slab for each building story. The contractor is arguing that it's essentially a sub-floor product and won't be exposed to the interior of the building, essentially encased from the air by the deck and it's fireproofing layer, and the concrete slab. Do we need to track this product for LEM? Or can we ignore it as not being exposed to the interior of the building? 

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Chyanne Husar
Principal
husARchitecture
LEEDuser Premium Member
3 thumbs up

Tue, 07/14/2020 - 00:38

Hi Laura,  I would not typically track this information and agree with the contractor that it's part of the subfloor which can be excluded.  I'd be interested to hear if others feel differently.
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Jeff Wiedmeyer
Facility Leaders in Architecture
LEEDuser Premium Member
1 thumbs up

Tue, 07/14/2020 - 02:52

Hi Laura, I may be wrong but I think the standard, if the product is wet-applied onsite on the inside of the building's weather-proofing barrier, is still applicable here.  

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