More Stringent Local Code Questions

Matthew Catterall

Cotera+Reed Architects

LEEDuser Basic Member

1 thumbs up

November 5, 2013

Regarding lighting power density, our jurisdiction has a more stringent local code than ASHRAE 90.1-2007 (our local code is IECC 2012). Our Cx authority has told us that EAp2 states: 'Any local code (or provision in it) that is more stringent becomes part of the prerequisite requirement' So do our baseline values for energy use (including lights) need to be in accordance with IECC 2012 instead of ASHRAE 90.1 –2007 and do the LEED credits the become based on improvements above IECC 2012?

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Tue, 11/05/2013 - 16:28

It would be helpful for the Cx to note where it says this. It is not in the credit requirement. As far as I know you use 90.1-2007.

Matthew Catterall

Cotera+Reed Architects

LEEDuser Basic Member

1 thumbs up

Tue, 11/05/2013 - 22:19

They found it in their CI 2009 reference guide on page 139 under '4. Implementation' there is a paragraph titled 'More Stringent Local Code'. Even after reading that paragraph, it still seems to me that the baseline would stay ASHRAE 90.1-2007 and that you just need to make sure that you also meet your more stringent local code, would you agree? Otherwise a project might receive less credits just because it is in a more stringent locality...

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Tue, 11/05/2013 - 22:43

I agree. This just means that you still need to comply with your local code if it is more stringent but 90.1-2007 remains the baseline for comparison.

Bernie Hont

LEEDuser Basic Member

1 thumbs up

Thu, 10/30/2014 - 19:54

Matthew Did you ever submit this through LEED? Did they accept allowing you to use the ASHRAE 90.1-2010 lighting levels in the proposed with the ASHRAE 90.1-2007 baseline?