Forum discussion
NC-2009 IEQp1: Minimum IAQ Performance
Hello,
We have a 20-storey residential building, which will be naturally ventilated, so to meet IEQp1, naturally ventilated spaces shall be permanently open to the outside at a distance of 8 meters (25ft) of a wall or opening useful in roofs, the opening area must be at least 4% of the net occupiable floor area.
The question is:
Does this percentage should be constantly open to ensure ventilation, or is it sufficient that this percentage is only operable?
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Is outdoor air quality testing required in a space using natural ventilation?
What options are available to projects outside the US to meet this prerequisite?
Can LEED 2009 projects elect to follow ASHRAE 62.1-2010 for this prerequisite?
Which units should be included in the calculations for this prerequisite?
Luis Miguel Diazgranados
Green Factory125 thumbs up
October 23, 2012 - 3:59 pm
Hi Diego
Section 5.1.1 of ASHRAE 62.12007, speaks about the space being "permanently open to and within 8 m (25 ft) of operable wall or roof openings to the outdoors, the openable area of which is a minimum of 4% of the net occupiable floor area."
Based on this, it is enough that the openings to the outdooors are operable and don't need to be constantly open.
I hope this helps
LEED Pro Consultant
Bioconstruccion & Energia Alternativa77 thumbs up
August 23, 2019 - 12:02 pm
Hi,
Is this also applicable to residential v4 projects?