As part of a residential project aimed at LEEDv4 BD+C certification, we are studying the different possibilities to meet the "Enhanced Indoor Air Quality Strategies" credit with the strategy 7. Operable Windows which requires to have opening windows for 75% of the spaces regularly occupied. However, by consulting section 188.8.131.52 of ASHRAE 62.1-2016 with addendum l, we understand that it is required to have windows in two opposite places of the same space, so in a case of residential project, to have crossing apartment. Do we understand the requirement of this strategy or would there be an error in the LEED credit and it would be section 6.4.1.
Have any of you used this strategy for a residential project with non-crossing apartment or is it the only way to be able to meet the requirements of this point?
Thanks in advance!
Panagiotis PaliourasSenior Sustainability Consultant
2 thumbs up
May 5, 2022 - 5:17 am
I have exaclty the same question. Judging from the credit wording "The windows must meet the opening size and location...", i think that the part would 6.4.2 Location and Size of Openings would be more applicable. I will submit a querry to GBCI. Please let us know if you resolve this issue.
May 11, 2023 - 6:30 am
Hi, we have the same question for a project. Did you receive any feedback on this strategy?
May 30, 2023 - 11:05 am
Hi all, we are working on a condo project and I came upon this discussion with similar questions. I'm curious if anyone has resolved this issue? Our reading of addendum l, section 184.108.40.206 is not that it requires double-sided openings, but that it just provides guidance on opening size (and ventilation area, though not pertinent to this credit) if you have a single-side opening, corner opening, or double-sided opening. I may be wrong about this, but I feel like if you could only achieve this strategy with double-sided openings on opposite sides, then it would make the strategy unavailable for a large number of buildings.
If anyone has any feedback on this it would be appreciated!