FAQs about EQp1 :

We have a VAV system where single AHUs serve multiple zones. Do we need to take outside air measurements at each VAV box?

Our building has a single fan that supplies outside air to multiple AHUs. Do we need to perform outside air testing at the supply fan or at all AHUs?

What if our systems do not meet the required outside air when systems are tested at worst-case conditions?

What if after our Preliminary Review we have to revise the ventilation rate procedure calculations and find that we need to make corrections to the system in order to meet the prerequisite? Can we redo the outside air testing after making corrections? Wou

My building has 80 AHUs providing ventilation to building spaces. Do I have to do the ventilation calculations and conduct outdoor air measurements for each one?

Our system cannot provide enough outdoor air to meet ASHRAE 62.1-2010 due to design limitations. How much outdoor air must we provide to meet Case 2 instead?

The outdoor air intake for our ventilation system is not accessible, and it’s not possible to measure the outdoor airflow directly. How can we determine the outdoor airflow for this system?

How do I find whether my project is located in a non-attainment area for particulate matter or exceeds the prerequisite ozone requirements?

What happened to the IEQ Space Matrix that was available to version 2009 projects? What should I reference to determine how spaces in my building should be categorized for this prerequisite?

View answers »

Forum discussion

EBOM-v4 EQp1:Minimum indoor air quality performance

ventilation of corridors and elevator ante rooms

Hi all,

we have an existing building in Germany where the corridors and elevator ante rooms are not ventilated mechanically. In addition there are also no windows for natural ventilation.

Question: In Germany it is not required to mechanically ventilate corridors due to estimation that opening doors to adjacent offices supply enouth airation. The CEN 13779 and 15251, eligible as ACP Europe, also do not have requirements for ventilation of corridors. corridors are not classified as regulary occupied spaces and have no requirements.

How can we prove compliance to the credit?

0

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Mon, 05/08/2023 - 09:24

Hi Arwid, 
We have the same situation in a building that we consider for LEED. No ventilation in the corridors in a residential building and really difficult to prove that they will receive outdoor air naturally. Were you able to resolve it with CEN 13779?
Best regards,
Aaron

Thu, 02/22/2024 - 15:46

Hello, may I as how did you solved this situation?

Mon, 07/01/2024 - 11:41

Any update? We are facing similar challenge in areas that do not have mechanical ventilation (lift lobby/reception area). 

Tue, 10/01/2024 - 11:21

Hello, has anyone had any update on this topic?  Regards,  Daniele

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.