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

In a building where a significant portion is "unconditioned", the baseline HVAC system type selected from table G.3.1.1.A shall be based on total area or on conditioned area only?

Can exterior lighting be part of the 25% process load requirement by Ashrae 90.1-2007 when it comes to energy modeling?

From what I have read about the new website, it is no longer required to complete all design prerequisites before submitting for Design Review (split review assumed).

We're using Option 1 of the "Treatment of District or Campus Thermal Energy in LEED v2 and LEED 2009 - Design and Construction" document to comply with EAp2 / EAc1.

Greetings, In the project we are modeling, there are air conditioners which are supposed to operate in cooling mode at OA temperature close to the design heating OA. In this table and also in othe

Hello all, We are attempting to model a cogen system (using gas to create electricity and using waste heat for domestic water heating). My questions are as follows: 1.

We have project using district steam. We use DES v2 to calculate the virtual rate based on state averaged electricity (0.084$/kWh) and gas (0.00757$/MBTU).

Hi ! According to building envelope compliance documentation Part I, revolvning doors should have air leakage less than 1,0 cfm/ft2. A manufacturer of revolving doors informed me that all revolvin