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2018 IECC - C405.4.2(2)Lighting Power Allowances for Building Exteriors
June 20, 2018
6:07 pm
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fgrable@iccsafe.org
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Further corrections to this table are forthcoming.

June 20, 2018
5:00 pm
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pkarr
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Thank you.
Good to know.
~PK

June 15, 2018
4:37 pm
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fgrable@iccsafe.org
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Your findings might be an undiscovered errata. The proposal that changed this area of the table was CE215-16 that was Approved as Submitted.

The "Freestanding.." values for Zones 1 and 2 were changed from 0.6 to 0.4  (not 0.04)

The "Open Areas...." values for Zones 1 and 2 were changed from 0.25 to 0.2 (not 0.02)

I will report these findings to the Secretariat of the code for a final determination.  If confirmed, the correction will be posted on Errata Central location on this website.

 

Thank you for bringing this to our attention.

June 15, 2018
12:48 pm
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pkarr
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2018 IECC - C405.4.2(2)Lighting Power Allowances for Building Exteriors

Zone 2, Sales Canopies, Free-standing and attached.

2015 code this number was .6 w/ft2.
2018 code has dropped to .04 w/ft2.  This is a drastic 94% reduction?!?

I thought perhaps this was a typo, but I see a similar drop in "Outdoor Sales" from .25 w/ft2 to .02 W/ft2.

This makes it nearly impossible to illuminate a gas station canopy adequately.  Does anyone know what is going on here?

Thanks.