Under what conditions would LEED regulate wet-applied low voc finishes inside underground parking garages? Underground garages typically have a moisture barrier and include an under floor slab between the main building and the underground garage. However, the garage is not considered regularly occupied and is separate from the main building.
Thank you in advanced for the clarification!
Sophie KerrSustainability Consultant
12 thumbs up
October 5, 2018 - 2:34 pm
I'm seeking clarification on this matter as well. Do traffic coatings need general emissions evaluations and to meet VOC limits?
1 thumbs up
October 5, 2018 - 2:52 pm
Here is the feedback I got from USGBC:
"It appears, based on the description that you have provided, that products within the garage would need to be included within the credit.
Whether products used within the garage should be included depends on the wall, roof, and floor assemblies for your project and whether there will be air movement between the garage and the occupied building. The requirements of this credit apply to all products installed in the building interior, which is defined as everything within the waterproofing membrane. Please refer to Further Explanation, Definition of Building Interior and Exterior in the LEED v4 BD+C Reference Guide section for this credit for guidance on identifying the specific line between the interior and exterior in different wall and roof assemblies.
Please note that LEED Interpretation 1767 (https://www.usgbc.org/content/li-1767) can be applied to v4 projects. Wet-applied products used in a parking garage may be excluded from EQc: Low-Emitting Materials if the following two criteria are met:
1) the garage is open to the outdoors at all times and thus is not technically an interior space and
2) the occupied areas of the building are separated from the garage by solid, impenetrable walls."
Hope this helps!