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A building has fan-assisted ventilation and no mechanical cooling system. Does this qualify as natural ventilation?

What options are available to mechanically ventilated projects outside the U.S. to meet this prerequisite?

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Warehouses-NC-v4 EQp1:Minimum indoor air quality performance

ventilation in Walk-in Coolers

Hello, is ventilation in Walk-in Cooler necessary for the prerequisite? Does the request depend on the indoor setpoint temperature?

If ventilation is necessary, do you have any suggestion relative to the technology that shall be used, please?

Best Regards

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Profile picture for user Dave.Hubka_2
Dave Hubka
Practice Leader - Sustainability
EUA
LEEDuser Expert
510 thumbs up

Tue, 09/05/2023 - 17:23

LEED Interpretation #10423 addresses ventilation requirements in cold/frozen spaces: https://www.usgbc.org/leedaddenda/10423

Wed, 02/21/2024 - 14:05

Hello, ventilation in Walk-in Coolers is uncommon in Italy. Do you have any suggestion about the technology that could be used? Are there specific Heat Recovery Ventilators used for air treatment for Walk-in Coolers?  Best Regards
Profile picture for user Dave.Hubka_2
Dave Hubka
Practice Leader - Sustainability
EUA
LEEDuser Expert
510 thumbs up

Wed, 02/21/2024 - 15:08

I am not aware of a country where it is common to ventilate walk-in coolers or steam rooms or saunas. Yet, per the LEED language non-regularly occupied spaces require ventilation. Not aware of ventilation system that are designed to serve the room types listed above.  Perhaps connect with GBCI directly to discuss potential outside the "non-regularly occupied" box solutions. 

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