We have a tower project in SE Asia that will have several decorative water fountains.

Can you take credit for occupancy sensors that control HVAC systems? I am thinking probably not for system operation E.g setbacks, agree? But I am unsure for the ventilation.

I'm working on a CS project (v2009) and I have a question concerning the definition of vegetated areas/roofs and the compliance with SSc5.2, SSc7.1, SSc7.2, etc.: Do ruderal vegetation areas (so no

Hello, I am working in a DES heating and cooling thanks to sea water and I would like to know if it is taking in account as a non-roof measure.

I am trying to understand whether the modelling for Option 2 of this credit is supposed to be done using the ECB method or Appendix G.

Is is possible to exempt 10% of the floor area that has CFC/halon/etc containing fire suppression systems?

Hi everyone, The project is cosmetic and medicine manufacturing with office. My question is, What difference between detailed manufacturing and Low/High Bay in ASHRAE90.1-2007 table 9.6.1?

Hello, My production line space in our project have an supply fan, exhaust fan and make-up fan to supply OA in conditioned space.

Hi, I work for a company that currently does thermal bypass inspections and air barrier testing on single family and multifamily new construction projects.

I have a HVAC system with labs on it requiring 100% outside air systems. Following all the guidance in 90.1 these spaces require a dedicated Sys 5/7 because they are over 5,000 cfm.