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Record #: O2019-1438   
Type: Ordinance Status: Failed to Pass
Intro date: 3/13/2019 Current Controlling Legislative Body: Committee on Zoning, Landmarks and Building Standards
Final action:
Title: Amendment of Municipal Code Section 18-13-230 by modifying requirements for low-sloped, medium-sloped and steep roofs within Chapter 4[CE] of International Energy Conservation Code
Sponsors: Villegas, Gilbert
Topic: MUNICIPAL CODE AMENDMENTS - Title 18 - Building Infrastructure - Ch. 13 Energy Conservation
Attachments: 1. O2019-1438.pdf
Related files: R2019-362
Chicago City Council March 13, 2019
Referred to Committee on Zoning, Landmarks and Building Standards



SECTION 1. Chapter 18-13-2J0 is hereby amended by adding the language underlined and deleting the language struck through as follows:

t$18-13-220. 18-13-230 Chapter 4 [CE] of IECC - Adopted with modification.
The provisions of Chapter 4 [CE] of the International Energy Conservation Code are adopted by reference and shall apply with the following modifications:
(Omitted text is unaffected by this ordinance)

2. C402.3 Roof solar reflectance and thermal emittance. Delete existing C402.3. Insert a new C402.3, titled "Urban heat island provisions":
C402.3 Urban heat island provisions. The following are exempt from the reflectance requirements:
The portion of the roof acting as a substructure for and covered by a rooftop deck, or vegetation associated with an extensive or intensive green roof as defined by the U.S. Environmental Protection Agency ("USEPA"), or by photovoltaic and solar thermal equipment.
A rooftop deck covering a maximum of 1/3 of the rooftop total gross area.
The remainder of the roof area must meet the reflectance requirements set forth in this section.
Table C402.3 Minimum Roof Reflectance and Emittance Options. Delete existing Table C402.3
C402.3.1 Aged roof solar reflectance. Delete existing C402.3.1. Insert a new C402.3.1, titled "Solar reflectance":
C402.3.1 Solar reflectance. All roof exterior surfaces shall have a minimum solar reflectance as specified in Section C402.3.2 through C402.3.5 when (i) tested in accordance with ASTM E903 or ASTM E1918, (ii) tested with a portable reflectometer at near ambient conditions; (iii) labeled by the Cool Roof Rating Council, or (iv) labeled as an Energy Star qualified roof product. Any product that has been rated by the Cool Roof Rating Council or by Energy Star shall display a label verifying the rating of the product.

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