Do we need to follow addendums of ASHRAE 90.1 2010 in relation to Appendix G for compliance? For instance, addendum F restricts window to wall ratio to 34% for hotel/motel with rooms greater than

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.

If the envelope is demolished and then rebuilt with the same shape does Table G3.1 part 5., baseline, point f apply?

Hello! I am constructing a building model which spaces are half offices, half laboratories. The HVAC system chosen is system 5 (packaged VAV with reheat) for all building, since it is considered a

Hello, I have a question regarding equivalent standards : Is there an USGBC approved equivalent standard for projects located in France ? Many thanks in advance for your assistance.

The LEED v4 Reference Guide offers three was of determining equipment efficiencies, distribution losses, and distribution pumping energy: Monitored data, engineering analysis, and default values.

In the building there is an electric transformer that transforms the electricity coming from the grid into low voltage energy. The transformer is particularly efficient.

Hi everyone, Reading the v4 reference guide, it seems that the default process energy being 25% of total energy cost for the baseline disappeared from the requirements. Have you also noticed it?

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.

We have a Green Building Council in Australia that has a very advanced energy simulation methodology that achieves the same outcomes as the ASHRAE 90.1 process outlined in LEED.