What is meant by "Average Differential Pressure"? In my case, i have 4 janitor's closets and a recycling room on the same fan.

We have existing janitor closets in the base building that are on and serve the tenant floors we are building out.

My project is LEED 2009 commercial interiors. I understand the entryways are required to be 10 feet in the direction of travel inside the building.

I have a major building entrance in my LEED boundary as well as some exterior entrances to a courtyard- do I need the mats to the courtyard area too? Then we have restrooms but no janitor closet or

We have a project that is not achieving IEQc5 as walk-off mats conflict with the operational aspects of the building. Can we still apply for an ID credit for a green cleaning policy?

We are working on an pharmaceutical production building that requires all building occupants to enter a changing / locker area right after the main entry to the building.

If We have chemical storage room with 69.4 ft square in Area in our building , i want to install one exhaust fan for this room to acheive credit requirements , how can i calculate minimum pressure

We have a ballpark facility where the concourse area is covered, but open air.

Hi, Would a room containing a 3D Printer and Laser Cutter be considered a hazardous gas and chemical use area? Thanks for your help!