We have an HVAC system configured with ceiling plenum return. Is this plenum required to meet item (§ 5.5.1) Resistance to Mold Growth and (§ 5.5.2) Resistance to Erosion of ASHRAE 62.1?

Let me confirm the following ASHRAE 62.1-2007 Zone Air Distribution Effectiveness (Ez) issue. Our project utilizes total heat exchangers for ventilation.

Hello, I have two specific questions, please help me working them out. 1.

Hello, We are carrying out LEED certification of an office building.

Our project is an office building with some retail spaces on its lower floors that have already been leased.

We are working on a natural ventilated CS office building. The Leedonline form asks to fill in a table with the operable window area, in order to calculate ratio of window to occupiable area.

Hello, Does anyone know if the ventilation system/strategy of a LEED 2009 project can be designed according to ASHRAE 62.1-2010 instead of 62.1-2007? I haven't looked at the 2010, but I heard the

We are in the midst of certifying a Medical office core and shell building. Our scope includes the landscaping, parking lot, side walks, and building shell.

Hi, I am working on C & S project wherein 4 AHU's are serving an entire office area per floor.

Hi all, I'm working on a cold dark shell project where the owner is NOT building out any HVAC systems (only plumbing); the tenant will install everything.