Forum discussion
NC-2009 EAp2: Minimum Energy Performance
Hello,
I'm trying to work through how much more efficient my project will be over ASHRAE 90.1 2007, and I wondered if anyone had experience with how the standard compares to IEC 2006.
The local building code requires that all new residential buildings be built to 30% better than IECC 2006. If we meet this, can we expect an equivalent improvement over ASHRAE?
Thanks,
Sam
LEEDuser is supported by our premium members, not by advertisers.
Go premium forTo post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.
A portion of our building envelope is historic. Can we exclude it from our model?
For an existing building, do I need to rotate the model?
Our process load is higher than 25%. Do we have to justify that?
Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?
Can mezzanines open to floors below be excluded from the energy model?
How do I provide a zip code for an international location?
For a project outside the U.S., how do I determine the climate zone?
For a project outside the U.S., how do I determine the Target Finder score?
Do hotel rooms need automatic light shut-off control?
How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?
The Section 9 space-by-space method does not include residential space types. What should I use?
Can the Passive House Planning Package (PHPP) be used to energy model for LEED?
Which baseline HVAC system do I use if my building has no heating or air conditioning?
Our project has a diesel backup generator. Should we include it in our energy model?
Can SHGC be higher in the proposed than in the baseline model?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
March 27, 2012 - 11:58 am
Hard to make this comparison. 90.1 is a commercial building standard and only covers residential 4 stories or more.
I do know that IECC on the commercial side is generally not as stringent as 90.1. You can find some studies that compare code stringency at this web site - http://www.energycodes.gov/
Sam Watters
Associate ConsultantUHG Consulting
46 thumbs up
March 27, 2012 - 12:24 pm
Thanks Marcus,
Unfortunately our building is sitting in that grey area of residential buildings of 4 stories, so it straddles the residential/commercial line for a lot of these standards. Thanks for the link, I'll dig a little more at that site.