ACP for IEQp1 uses EU Ventilation Norms

Agreed. A lot of projects have way more outside air than required by ASHRAE 62.1, a lot of dedicated outside air systems and 100% OA but the toilet exhaust is less.

I appreciate the new possibilities given by the ACP for projects outside the U.S. Is it possible to use the EN 15251 and EN 13779 for the IEQ category and ASHRAE for EAp2 and c1? Then two regulations will be applied to one project. What is your opinion?

Hello Bernadette, thank you for your question and your thoughts on the ACPs. The LEED 2009 ACPs may be used individually by project teams as they are needed. This means that projects may use the ACP for IEQp1 but not for EAp2 if teams wish. Therefore, the CEN Standard EN 15251 & EN 13779 may be used for the related credits in IEQ and ASHRAE 90.1-2007 may be used for the related credits in EA.

Dear Deon,
Is it possible to opt for ACP after preliminary design review feedback has been received. The ACP for int. project were issued after we have submitted for design review.
Any feedback is welcome. Thanks in advance!

Hello Maria, and thank you for your question. Project teams are able to apply the LEED 2009 ACPs to their project even after their design review is complete. However, each credit will still only be given two rounds of review (preliminary and final) before an appeal is required. This means if a credit was reviewed without using the ACP during the preliminary design review phase and the ACP strategy was applied during the final design review phase the ACP strategy will only be reviewed once before an appeal is required.

We hope this resolves your issue. In the future please feel free to submit your questions on the certification and review process by going directly to http://www.gbci.org/contactus. This will allow you to submit your project information so GBCI can review your project when answering your inquiry and giving you a more detailed answer.

Dear Deon, dear all,

when following ACP EN 13779:2007 in CS.IEQp1 and CS.IEQc2 we do experience a very uncertain conditions given by this method in terms of IAQ – fresh air supply. Acc. to EN 13779:2007 it is possible to set classes from low to high IAQ (IDA 4 – IDA 1). This is then significantly implying the amount of fresh air needed.

Is this really flexible for us/investor to freely set the targeted class of IAQ or is it somehow more specified? I did not find any further specification what class should be taken.

What is the implication on the credit IEQc2 of the classes IDA 1-4 + 30%? Also very flexible then plus the credit makes no sense then if it is free to set IDA class of IAQ.

Please could somebody clarify this?

Thanks,
Petr

Petr, I would recommend posting your question to our IEQc2 forum. Thanks.