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.

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.

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.

Dear Community, we have a situation where our proposed design utilizes a double roof (i.e. naturally ventilated attic) as part of the building's passive environmental design.

In the proposed model, we have a HEPA 13 filter in a dedicated outdoor air unit which serves a variable refrigerant flow system.

Hi all, I am working on a LEED 2009 NC project with IES energy modelling. Could anybody advise what documents need to be submitted for EAp2 and EAc1 certifications?