I have a heating-only warehouse (with small conditioned office) I'm modeling for C&S 2009.

How do I calculate the U-factor for the construction assembly (e.g walls) according to ASHRAE 90.1-2007 Appendix A if one or some of the construction layers properties are not specified in the ment

The project consists of non residential building of 6 stories.

Hi, Currently I'am working on a LEED Core & Shell mixed development project, and I have an issue on develop model regarding HVAC design.

Hi, I am developing a simulation (EAP2/LEED CS) for an existing building located in Rio de Janeiro.

Does anyone know whether LED monitors for advertisement are considered as exterior lighting? Does it need to comply with the 2.2W/m2 Exterior LPD requirement as stipulated in ASHRAE 90.1?

Hi we are doing the eap2 modelling for a 18 floor office building. the floors are all the same. we need to submit the modelling results for precertification.

I have an existing 90,000 SF, 3-story office building in Massachusetts consisting of VAV boxes with electric reheat and rooftop units that also have electric heat.

...is calculated automatically by the energy simulation tool we use according to appendix G13.1.2.9.