The term "vertical chase" is present on the definition of "differential air pressure". Does "vertical chase" refers to pipe shafts adjacent to the room or to the ceiling plenum?

The...

Dear everyone,

We are in the process of review, suddenly the client wants to add a smoking lounge in the Mixed used Development Project. So I'm checking all the requirements for compliance...

We are working on a high-rise residential project in San Francisco. I see a question relating to how many residential units need to be blower door tested dating from June 24 2014. We do not see...

Hi, we are having issues passing our blower door tests and have been presented with the alternative compliance path below, does anyone have experience with this approach?

Tracer gas...

We have a project where we have already been through one round of review.  Reviewer wants the signage, as expected.  The entire campus is no smoking and it says that when you drive on to campus...

Hi,

We have finished the design review phase and got IEQp2 approved. We wonder will that be allowed by...

We are performing blower door tests on a condo project with units as small as 400 sf. The testing firm has indicated that the requirements for compliance are unreasonable and very challenging on...

Hello,

I'm working on a large building with over 20 separate entrances/exits that are adjacent to public sidewalks and plaza areas. The owner is concerned that placing 20 no-smoking signs...

Hi all,

I have a question that consider already certified buildings that do not comply with the ETS credit. As it is one of the K/O credits, if a building do not comply with it, is it...

Is a certification required to perform the pressure differential test? I'm wondering if it needs to be done by a specialty testing company or can it be done by the Mechanical Sub? This is for...