HomeMy WebLinkAbout2012/03/27 Item 03D REp►DING p,ND ADOPTION
ORDINANCE NO. sEC�N
ORDINANCE OF THE CITY OF CHULA VISTA AMENDING
CHAPTER 15.12, GREEN BUILDING STANDARDS, OF THE
CHULA VISTA MUNICIPAL CODE, ADDING SECTION
15.12.030, COOL ROOF
WHEREAS, on May 3, 2011 City Council approved Resolution 2011 -076 in which City
Council adopted the Climate Adaptation Plans and approved their implementation; and
WHEREAS, the adopted Climate Adaptation Strategies will help reduce the City's future
risks and costs from expected local climate change impacts; and
WHEREAS, the Implementation Plan for Strategy #3, Cool Roofs, proposed amending the
City's Green Building Standards, Chula Vista Municipal Code (CVMC) Chapter 15.12, to
require what are currently voluntary cool roof measures in the 2010 California Green Building
Standards Code on new low -rise residential developments; and
WHEREAS, the California Energy Commission determined that because cool roofing is
currently one of the compliance options available in the California Energy Code and because it
affects the energy efficiency of buildings, mandating cool roofs requires the California Energy
Commission's review and approval prior to a cool roof ordinance taking effect; and
WHEREAS, the California Energy Commission's review and approval process requires City
Council's determination that the proposed local standards will not require buildings to consume
more energy than permitted by the current California Energy Code and are cost - effective; and
WHEREAS, a study prepared by Gabel Associates, LLC analyzed the energy savings and
cost - effectiveness of requiring Tier 1 and Tier 2 residential cool roof standards, which are
currently voluntary standards in the 2010 California Green Building Standards Code, in the two
Climate Zones that are within the boundary of Chula Vista; and
WHEREAS, the results of the study showed that requiring Tier I or Tier 2 cool roof
standards in Climate Zone 7 is not cost - effective, however the requirements are cost - effective in
Climate Zone 10; and
WHEREAS, based on the results of the study, Gable Associates, LLC recommends requiring
Tier I or Tier 2 standards only in Climate Zone 10; and
WHEREAS, based on the results of the study, Tier 2 cool roof standards in Climate Zone 10
are more cost - effective than Tier 1 standards; and
WHEREAS, based on staff research, the majority of new residential developments in Chula
Vista will have steep - sloped roofs with concrete or clay tile roofing that will meet or exceed Tier
1 cool roof standards; and
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Ordinance No.
Page 2
WHEREAS, the Director of Development Services has reviewed the proposed activity
for compliance with the California Environmental Quality Act (CEQA) and has determined that
the activity falls within the Class 8 Categorical Exemption pursuant to California Code of
Regulations Title 14, Chapter 3, Article 19 (the "State CEQA Guidelines ") section 15308 and
therefore is exempt from environmental review; and notwithstanding the Class 8 Categorical
Exemption, the Director of Development Services has further determined that there is also no
possibility that the activity may have a significant effect on the environment; therefore, pursuant
to section 15061(b)(3) of the State CEQA Guidelines the activity is exempt from the provisions
of CEQA.
SECTION 1: NOW THEREFORE BE IT ORDAINED, that the City Council of the City of
Chula Vista does hereby find and determine that:
Mandating Tier 2 coermc urrent Climate
Cal forma EneOrgy Code;require buildings to
consume more energy than p itted by the
Tier 2 cool roof standards in Climate Zone 10 are cost- effective; and
Mandating Tier 2 cool roof standards in Climate Zone 10 is necessary due to local
climatic and environmental conditions.
SECTION 11: BE IT FURTHER ORDAINED, that the City Council of the City of Chula Vista
does hereby find and determine that Chapter 15.12 of the Chula Vista Municipal Code is hereby
amended by adding Section 15.12.030, Cool Roof, as follws:
Section 15.12.030 Cool Roof
The voluntary Tier 2 cool roof measures found in Subsection A4.106.5 of the California
andatory in Climate Zone 10 for new low -rise
Green Building Standards Code are m
residential developments.
SECTION III: EFFECTIVE DATE
This Ordinance shall take effect after the City Council acknowledges receipt of actions
taken by the California Energy Commission pursuant to Title 24, Part 1 of the California Code of
Regulations (the "California Administrative Code ") section 10 -106 but no sooner than the thirtieth
day from and after this Ordinance's final adoption.
Presented by
Approved as to form
Gary Halbert P.E., AICP %("' Ci len Attorney
Assistant City Manager/Development tY
Services Director
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