When modelling a building to the ASHRAE 90.1 PRM what conventions should be used in terms of room heights. Are floor voids and ceiling voids merged into the height of the rooms? Advise needed.

Hi, I am working on a Leed campus project where there is 3 separate buildings which each consist of retail units on the ground floor and office units above.

Dear Marcus We conducted an energy simulation analysis and included Facade lighting as one of the energy saving features.

We are modeling a new construction mall, and I would like to get another perspective on how to approach the zoning. The project will be applying for certification under LEED 2009 Core and Shell.

Hi, Is there any guidance on what service hot water consumption should be used in the energy model in USgal/h.pers or Lts/day/ person. What would USGBC look out for here ? Thanks in advance.

Hi All, In my project, proposed building has DX split unit HVAC System.

For projects registered under LEED-CS v2.0, is Title-24 2005 deemed equivalent to ASHRAE Standard 90.1-2004 for showing compliance with the EAc1 requirements?

I have an office building that will use solar pannels to generate hot sanitary water. But it will have an electric heaters aswell for back up. How can I consider this in my Model???.

We've learned that for projects with partial renovation and partial expansion a new points thresholds should be calculated for EAc1.

Hi, we are certifying a new C&S building, in v2009. The version of Ashrae 90.1 to follow is 2007?