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HomeMy WebLinkAboutEmail-Amended PZ.16 and PZ.17 for 9-24From: Burns, Pamela E To: Martinez. Maribel Subject: FW: Amended PZ.16 and PZ.17 for 9/24 Date: Monday, September 21, 2009 9:54:20 AM Attachments: PZ.16 heat island roof amended.docx PZ.17 heat island non roof amended.docx fyi From: Hadwen, Glen Sent: Monday, September 21, 2009 9:49 AM To: Rodriguez, Anel; Gomez, Marta; Mendez, Victoria Cc: Lavernia, Roberto; Garrido, Sergio; Rawlins, Tracy; Fernandez, Teresita; Castillo, Vanessa; Thompson, Priscilla; Burns, Pamela E; Hannon, Todd; Agenda Office; Ruano, Robert; Hendon, Dakota Subject: RE: Amended PZ.16 and PZ.17 for 9/24 Attached are the versions of the ordinances below as amended during the meeting and including a typographical correction. Please substitute these items. Thank you. Glen Hadwen Environmental Programs Manager Office of Sustainable Initiatives City of Miami Phone: 305-416-1522, Fax: 305-416-1505 From: Rodriguez, Anel Sent: Thursday, September 17, 2009 2:08 PM To: Gomez, Marta; Mendez, Victoria Cc: Lavernia, Roberto; Garrido, Sergio; Rawlins, Tracy; Fernandez, Teresita; Castillo, Vanessa; Thompson, Priscilla; Burns, Pamela E; Hannon, Todd; Hadwen, Glen; Agenda Office Subject: RE: Amendments on the Floor of the two heat island ordinances Importance: High FYI ... the September 24 CC items in question are: 1) PZ.16, 09-00953zt - To Create Section 951, "Heat Island Effect - Roof'; and 2) PZ.17, 09-00954zt - To Create Section 952, "Heat Island Effect - Non Roof'. Mr. Anel Rodriguez - Administrative Assistant II - City of Miami Hearing Boards - 305.416.2037 - 305.416.2035 - axrodriguez(@miamigov.com From: Gomez, Marta Sent: Thursday, September 17, 2009 2:05 PM To: Mendez, Victoria Cc: Lavernia, Roberto; Garrido, Sergio; Rawlins, Tracy; Fernandez, Teresita; Castillo, Vanessa; Rodriguez, Anel; Thompson, Priscilla; Burns, Pamela E; Hannon, Todd; Hadwen, Glen; Agenda Office Subject: RE: Amendments on the Floor of the two heat island ordinances o9- �.S3Z%`- Ema. i I - A merndecrl P2,16 a►nJ PZ 17 fo r 9/2 q Once we receive the items in word, I'll forward it to you for your review. The department will then distribute the substitution at Tuesday's agenda briefing. From: Rodriguez, Anel Sent: Thursday, September 17, 2009 1:44 PM To: Hadwen, Glen; Gomez, Marta Cc: Lavernia, Roberto; Garrido, Sergio; Rawlins, Tracy; Fernandez, Teresita; Castillo, Vanessa Subject: RE: Amendments on the Floor of the two heat island ordinances Importance: High Glen, I have included Marta Gomez, Legislative Coordinator in the Office of the City Attorney. The item needs to be substituted before the Agenda Review Meeting with Commissioner's Staff on Tuesday. I will be going on vacation tomorrow, but please send us the updated legislation items in WORD. Thanks. Mr. Anel Rodriguez - Administrative Assistant II - City of Miami Hearing Boards - 305.416.2037 - 305.416.2035 - axrodriguezlcDmiamigov.com From: Hadwen, Glen Sent: Thursday, September 17, 2009 10:25 AM To: Garrido, Sergio; Lavernia, Roberto; Rodriguez, Anel Subject: Amendments on the Floor of the two heat island ordinances The two heat island ordinances were amended on the floor last night. As you know, they are going to commission on 9/24. Do we need to do anything to include the amendments as a substitution item for the 9/24 commission? Do you want me to email the amendments in writing? Glen Hadwen Environmental Programs Manager Office of Sustainable Initiatives City of Miami 444 SW 2nd Ave, 5th Floor Miami, FL 33130 Tel: (305)416-1522 Fax: (305)416-1505 ghadwen Pmiamigov.com www.miamigoy.com/ms* ORDINANCE NO (X) AN ORDINANCE OF THE CITY OF MIAMI COMMISSION AMENDING ARTICLE 9 OF ORDINANCE NO. 11000, THE ZONING CODE OF THE CITY OF MIAMI, FLORIDA, TO CREATE SECTION 951 ENTITLED "HEAT ISLAND EFFECT — ROOF" TO ADD SECTIONS TO PROVIDE FOR ENVIRONMENTALLY RESPONSIBLE CONSTRUCTION OF BUILDING ROOFING SYSTEMS DESIGNED TO DECREASE THE ABSORPTION AND REMITTANCE OF ATMOSPHERIC HEAT IN CITY OF MIAMI, CONTAINING A SEVERABILITY CLAUSE AND PROVIDING FOR AN EFFECTIVE DATE. WHEREAS, The City of Miami is committed to reducing elevated temperatures and associated air-quality issues stemming from urban heat island effects; and WHEREAS, during the past eight (8) years, the City of Miami ("City") has launched a comprehensive and aggressive environmental program to clean streets, waterways, brownfields, storm drains, and to improve air and water quality; and I WHEREAS, the City Commission has adopted the recommendations of MiPlan, the City of Miami Climate Action Plan, which calls for promotion of green building programs such as the US Green Building Council (USGBC) Leadership in Energy and Environmental Design (LEED) rating system; and WHEREAS, the USGBC LEED rating system promotes sustainable sites, water conservation, energy efficiency, conservation of materials and resources, and indoor air quality; and WHEREAS, MiPlan promotes various methods to achieve reduction in energy consumption which is adversely affected by elevated temperatures in the urban -core; and WHEREAS, heat absorption and remittance from standard roofing materials raises localized temperatures, increases energy consumed to cool buildings and associated green house gas emissions, deteriorates air-quality, and may harm local plant and animal life sensitive to increased temperatures; and WHEREAS, roofs designed to reduce heat island effect either through enhanced reflective materials (cool roofs) or incorporating vegetation (green roofs) reduce costs and energy consumption associated with building cooling systems, provide habitat for wildlife, and increase the life -cycle of roofs; and NOW THEREFORE, BE IT ORDAINED BY THE COMMISSION OF THE CITY OF MIAMI: Section 1. The recitals and findings in the Preamble to this ordinance are adopted by reference and incorporated as if fully set forth in this Section. Section 2. Article 9 of Ordinance No. 11000, the zoning code of the city of Miami, Florida, is amended to create section 951 entitled "Heat Island Effect — Roof' in the following particulars: Article 9 General and Supplementary Regulations Section 951 HEAT ISLAND EFFECT - ROOF 951.1 Intent The requirements of this ordinance are intended to reduce the heat island effect in the City of Miami and to reduce energy consumption and bills for buildings within the City. 951.2 Definitions Heat island effect is an elevated temperature over an urban area when compared to rural areas, typically caused by the increased presence of dark, heat absorbing materials, such as asphalt and dark roofs, in urban areas. Solar reflectance is the fraction of solar energy reflected by a material. 951.3 Applicability The provisions of this ordinance are applicable to newly constructed buildings and to repair or replacement of greater than 50% by area of existing roofs after the effective date of this ordinance and located in the City of Miami. All repairs or replacement of existing roofing shall be reviewed by the Zoning Department for compliance with this ordinance. The following are exempted from the requirements of this ordinance: (a) The portion of the roof acting as a substructure for and covered by a rooftop deck, vegetation associated with an extensive or intensive green roof as defined by US Environmental Protection Association, or by photovoltaic and solar equipment. (b) A rooftop deck covering a maximum of 1/3 of the rooftop total gross area. 951.4 Solar reflectance. All roof exterior surfaces shall have a minimum solar reflectance as specified in Sections 951.5 through 951.7 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 r- has been rated by the Cool Roof Rating Council or by Energy Star shall display a label verifying the rating of the product. 951.5 Requirements for Low Sloped Roofs Roofing materials used in roofs with slopes of a rise of 0 units in a horizontal length (0:12 pitch) up to and including roofs with slopes of a rise of 2 units in a horizontal length of 12 units (2:12 units) ("low -sloped") shall meet the following requirements: (a) Low -sloped roofs constructed as part of a new building shall utilize roofing products that meet or exceed an initial reflectance value of 0.72 or a three-year installed reflectance value of 0.5 as determined by the Cool Roof Rating Council or by Energy Star. (b) Exception: where more than 50% of the total gross area of the low -sloped roof is covered with vegetation associated with an extensive or intensive green roof as defined by the US EPA, the remainder of the roof shall have a reflectance value of a minimum of 0.30. The rooftop deck exception in Section 951.3 applies. (c) Exception: ballasted roofs with a minimum of 15 lbs/sq. ft. or ballast over the entire roof surface may have a reflectance value of a minimum of 0.30. For the purposes of this section, "ballast" shall mean river rock aggregate or larger, pavers or other means of weighing down a roofing membrane over a substrate to resist wind uplift. 951.6 Requirements for Steep Sloped Roofs Roofing materials used in roofs with slopes of a rise greater than 2 units in a horizontal length (2:12 pitch) ("steep -sloped") shall meet the following requirements: (a) Steep sloped roofs shall have an initial solar reflectance of 0.15 or greater. 951.7 Requirements for Roofs with Multiple Slopes Roofs with multiple slopes shall be subject to those requirements of the applicable to the slope which covers the largest area of the building footprint. Section 3. All ordinances or parts of ordinances that are inconsistent or in conflict with the provisions of this Ordinance are repealed. Section 4. If any section, part of section, paragraph, clause, phrase or word of this Ordinance is declared invalid, the remaining provisions of this Ordinance shall not be affected. Section 5. This Ordinance shall become effective immediately after final reading and adoption thereof. {2} APPROVED AS TO FORM AND CORRECTNESS: JULIE O. BRU CITY ATTOR114EY ..Footnote { 1 } Words/and or figures stricken through shall be deleted. Underscored words and/or figures shall be added. The remaining provisions are now in effect and remain unchanged. Asterisks indicate omitted and unchanged material. {2} This Ordinance shall become effective as specified herein unless vetoed by the Mayor within ten days from the date it was passed and adopted. If the Mayor vetoes this Ordinance, it shall become effective immediately upon override of the veto by the City Commission or upon the effective date stated herein, whichever is later.