My question is currently about the scope of certification, but has it main impact on the building's energy performance. We are currently working on a major renovation and extension of an office bu

Hi everybody! I´m looking at several glass options for a building project and I want to make sure I pick the most cost-effective and energy efficient options available to me.

For the baseline model can I please confirm the following; Design Cooling SAT: According to ASHRAE 90.1 G3.1.2.8 should the supply temperture be 11 deg C less than room temp.

If your climate zone does not require air econmizer for baseline systems (90.1 2007, climate zone 4a) are you allowed to model your proposed systems with economizer, per design and not have economi

Hello:) In which programs are you doing energy simulations? Did you have some problems with GBCI concerning the type of the programe that you chose? What with IDA ICE for example. Thanks:)

Appendix G (Table 3.1) states that lighting power for building facades has to be modeled in the energy simulation.

Can you use center of glass for EAp2 & c1 or do you need factor for the entire unit?

I’m modeling a building for C&S in France. Normally in my baseline and proposed models I put the same infiltration (n50 = 0.14 ach) for both buildings.

Theoretically one might think modeling the glazing and shadowbox portions of a curtain wall with a single assembly u-value would yield the same result as modeling the curtain wall as glazing for th

I am just wondering what people's opinion is on Tranes trace software and eQuest software.