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HomeMy WebLinkAbout2009/09/15 Item 7 CITY COUNCIL AGENDA STATEMENT ,_... '''' ); ~(ft- CITY OF ~ (HULA VISTA Item No.: 7 Meeting Date: 9/15/09 ITEM TITLE: A. Ai"T ORDINANCE OF THE CITY OF CHULA VISTA ADDING CHAPTER 15.12, GREEN BUILDING STANDARDS, TO THE CHULA VISTA MUNICIPAL CODE. SUBMITTED BY: REVIEWED BY: B. RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CHULA VISTA ADOPTING THE CHULA VISTA GREEN ~Y8-DING STANDARDS Deputy City Manag~evelopment Services Director City Managefr 4/5THS VOTE: YES D NO [KJ SUMlVIARY On July 10,2008, COlmcil approved Resolution No. 2008-177 in which COlmcil adopted the Implementation Plans for the Climate Change Working Group (CCWG) measures. Measure # 4, Green Building Standards, consists of several components, one of which is the early adoption of the State Housing and Community Development's (BCD) standards that are in the California Green Building Standards Code (CGBSC). The proposed ordinance adopts HCD's green building standards and requires them on all residential and non-residential construction. ENVIRONMENTAL REVIEW The Environmental Review Coordinator has reviewed the proposed ordinance CVMC, Chapter 15.12, Green Building Standards for compliance with the California Environmental Quality Act (CEQA) and has determined that there is no possibility that the activity may have significant effect on the environment; therefore, pursuant to Section l506l(b)(3) (General Rule) of the state CEQA Guidelines the activity is not subject to CEQA. Although environmental review is not necessary at this time, additional environmental review will be required if applicable, prior to the approval of any future project specific development entitlements including, but not limited to, site development plans, building permits, land development permits, and conditional use permits. RECOM:MENDA TION That the City Council place the ordinance on first reading and adopt the resolution. 7-1 Hem No.: 7 Meeting Date: 9/15/09 Pagelof4 BOARDS/COMMISSION RECOMMENDATION The Board of Appeals and Advisors at their Monday, August 10, 2009 meeting, unanimously recommended the adoption of the proposed ordinance and resolution. DISCUSSION On April 1,2008, City Council adopted the Climate Change Working Group's (CCWG) seven recommendations and directed staff to return to Council with detailed implementation plans. On July 10, 2008, Council approved Resolution No. 2008-177 in which Council adopted the implementation plans for the Climate Change Working Group (CCWG) measures and approved partial implementation of the measures based on funding levels. Measure # 4, Green Building Standards, consists of several components, one of which is the early adoption of the State Housing and Community Development's (HCD) standards that are in the California Green Building Standards Code (CGBSC). The proposed ordinance adopts HCD's green building standards and requires them on all residential and non-residential construction. California Building Standards Code The California Building Standards Commission (BSC) and the Department of Housing and Community Development (HCD) developed and adopted a California Green Building Standards Code (CGBSC). The CGBSC is gleaned from nationally recognized green building programs and is based on an open public adoption process. CGBSC measures fall into two categories, I) BSC measures that apply to nonresidential construction, and 2) HCD measures that apply to residential construction. Currently, BSC and HCD measures are voluntary guidelines, however, HCD's measures will become mandatory by State Law on January I, 2011, and will be incorporated into the California building codes. HCD's indoor water efficiency and conservation measures will become mandatory on July 1,2011. Benefits of Green Building Green building is a whole system approach to the design, construction and operation of buildings that employs materials and methods that promote natural resource conservation, energy efficiency and good indoor air quality. Paint, adhesives, carpets, and wood, among other building materials, generally contain a wide array of chemical pollutants. These toxic substances continue to be released into the indoor and outdoor atmosphere long after construction has been completed. They can contaminate the air and water, and some substances remain in the environment for many years. Green buildings contain low-emitting materials and therefore, they pose less of a risk to the building's occupants and the natural environment. Significant health benefits can be gained like increased productivity and reduced absenteeism due to illness. Furthermore, reducing the need for water reduces stress on the local water infrastructure and results in energy and carbon savings from the reduced amount of water that needs to be transported and distributed. This will also reduce the generation of wastewater reducing the need for sewer infrastructure expansion. Proposed Standards The Chula Vista Green Building Standards (CVGBS), Exhibit "A" to the proposed City Council resolution, lists the City's proposed green building standards. As proposed, the standards will apply to all new residential and nomesidential construction, remodels, additions, alterations, and tenant improvements. Some of the standards such as site development, construction waste 7-2 Item No.: 7 Meeting Date: 9/15/09 - Page 3 of3 reduction and outdoor water use are existing requirements in the City's Municipal Code. They are included as a reference to existing City standards that contribute to green building, sustainability and water conservation. Products that comply with the proposed standards are currently available in the market and can be found in local building material/home improvement stores or can be ordered online. Incremental Cost Staff is not aware of any formal analysis on the upfront cost of implementing HCD's green building standards. However, based on discussions with HCD staff and energy consultants, incorporating HCD's green building features into a new residence will add about $0.40 to $0.80 per square foot to the construction cost. This equates to 0.3% to 0.7% of the construction cost of a new residence assuming a $120 per square foot building construction cost. This upfront cost should decrease as green building resources become more available in the market and the construction industry becomes more accustomed to green building practices. The 20% reduction in indoor water consmnption should lower the monthly water bill by about 10% assmning that 50% of the total water consumption is indoor water. This should also lower the sewer bill due to the reduction in wastewater. Training and Outreach Staff is being trained on the CVGBS and is developing informational handouts and guides that will be made available to the public. In addition, staff contacted the major home improvement stores such as Home Depot, Lowe's and Dixieline and inJormed them of our proposed ordinance and standards so that they are prepared. DECISION MAKER CONFLICT Staff has determined that the recommendations requiring Council action are not site specific and consequently the 500 foot rule found in California Code of Regulations Section 18704.2(a)(l) is not applicable to this decision. CURRENT YEAR FISCAL IMP ACT Building permit fees will need to be adjusted to recover the cost of the additional staff time associated with plan review and inspection. The additional staff time will be accounted for in a comprehensive building permit fee study which staff anticipates tlnalizing and presenting to Council in December 2009. Staff estimates an additional hour of staff time to review and inspect a typical 2,500 square foot house. The additional staff time will vary based on the type and size of buildings. ONGOING FISCAL IMPACT No ongoing fiscal impact. The additional building permit review and inspection time associated with implementing this ordinance will be funded through updated building permit fees. ATTACHMENTS 1. Board of Appeals and Advisors August 10, 2009 Meeting Minutes. 7-3 [ID~~u Attachment 1 MINUTES OF A REGULAR MEETING BOARD OF APPEALS AND ADVISORS CITY OF CHULA VISTA, CALIFORNIA August 10,2009 Conference Room #137 276 Fourth Ave. Chula Vista, CA 91910 5:15 PM MEMBERS PRESENT:. Chairman Buddingh, Flach, Sides, Buencamino-Andrew and Lopez MEMBERS ABSENT: None CITY STAFF PRESENT: Lou EI- Khazen, Building Official; Rosemarie Rice, Secretary OTHERS PRESENT: None CALL MEETING TO ORDER: Chairman Buddingh called meeting to order at 5:15 PM. ROLL CALL: Members present constituted a quorum. 1. APPROVAL OF MINUTES: December 13th, and December 15, 2008 MSC (Flach/Buencamino-Andrews) (5-0-) Approve the minutes of December 13, 2008. Motion carried. MSC (Flach/Buencamino-Andrews) (5-0) Approve the minutes of December 15, 2008. Motion carried. 3. NEW BUSINESS: A. ELECTION OF NEW CHAIR AND VICE CHAIR FOR FYE 09/10 MSC (Lopez/Sides) (4-0-1-0) Eiect Jan Buddingh to Chair. MSC (Lopez/Sides) (4-0-1-0) Elect Rita Buencamino-Andrews to Vice Chair B. Review of ordinance of the City of Chula Vista adding Chapter 15 12, Green Building Standards, to the Chula Vista Municipal Code. 4. MEMBERS COMMENTS/CHAIRMAN'S COMMENTS/REPORTS: None Chair Buddingh addressed the fact that there were only 5 members on the committee and asked the members to keep in mind anyone (with a building construction background) who they felt would be a good candidate for the BAA. 5. BUILDING OFFICIAL'S COMMENTS/REPORTS: Building Official, Lou EI-Khazen, gave a brief overview of the new ordinance that will adopt Green Building Standards. Those standards will be applied citywide to all residential and non-residential construction. Mr. Ei-Khazen said he would be presenting this to Council on September 2009 so that it will go into effect October 2009. Chair Buddingh noted that many of the larger builders are already implementing some of these measures. Me. EI-Khazen concurred, he stated the building industry is currently focused on green products, and many of the home improvement stores are beginning to carry the "Green" building materials. Chair Buddingh pointed out a typographical error in Section 15.12.010 Definitions. On the fourth line down the text began with. "meaning ascribed to in" he thought it should read: meaning ascribed to it, since "it" was referring 70.-~ term on the line above. Also on Exhibit "A" of the Chula Board of Appeals & Advisors Meeting Minutes August 10, 2009 Vista Green Building Standards, page 7 of 8, item 3c. Carpet adhesive. All carpet adhesives shall meet the requirements of Table1. It should be Table 3. Mr. EI-Khazen thanked Chair Buddingh for bringing this up and would make the necessary corrections before it goes to council. Member Sides discussed the compliance verification aspect and wanted to know how the city would enforce this provision, especially when it came to materials such as paint. He noted it wasn't currently part of the inspector's protocol to inspect paint. In this instance, he believed it would be easy for someone to fake using a low VOC material. Mr. EI-Khazen stated it would be a challenge until the public is educated on this and sees the benefit of using these products. There will be some flexibility in the beginning to allow the owner to get the right product. The inspectors will be notifying the contractors at the start of the project that these kinds of materials must be used in order for final inspection to be issued. For now, staff will be relying on the specifications provided in the building plans and holding the builders accountable to that. Mr. EI-Khazen noted as part of implementation of this new ordinance there would be additional training for building inspectors, plan examiners and more public outreach in order to enlighten the public concerning the products and criteria. Member Buencamino-Andrews asked if any public hearings had been held for the businesses, being impacted by this new ordinance, and what the reaction was? Mr. EI-Khazen said there had been several hearings and talks for the past 18 months with no adverse reactions. The BIA was also informed that the Boards of Appeals and Advisors would be meeting and recommending this today Member Lopez asked how this ordinance would apply to large alterations specifically ones that have multi level floors. Mr. EI-Khazen replied that the standards would apply only to the scope of work of the a Iterations. Member Sides also commented about the water table and noted that there was no mention of irrigation usage. Mr. EI-Khazen stated that it was addressed on page 4 of the standards listed as # 2 Outdoor Water Use. Member Flach and Mr. EI-Khazen discussed the usage of recycled water within the city. Mr. EI- Khazen noted that recycled water is used in landscaped common areas in many areas of the city, .. particularly those in the Otay Water district. Currently there is no recycled water used in residential areas. MSC (Buddingh!Flach) (5-0) Recommend to City Council adoption of Chapter 15.12, Green Building Standards, of the City of Chula Vista Municipal Code and the resolution. Building Official El-Khazen also commented about: . Increased Energy Efficiency Ordinance will be presented to BAA in September . Fee Study to be presented to Council in December 6 COMMUNICATIONS (PUBLIC REMARKS! WRITTEN CORRESPONDENCE): None 7. ADJOURNMENT: Chair Buddingh adjourned the meeting at 6:15 p.m. to a regular meeting on September 14, 2009 at 5:15 p.m. in Planning and Building Conference Room #137 MINUTES TAKEN BY' ROSEMARIE RICE, SECRETARY DEVELOPMENT SERVICES DEPARTMENT - BUILDING DIVISION 7-5 ORDrNAt'\fCE NO. AN ORDINANCE OF THE CITY OF CHULA VISTA ADDrNG CHAPTER 15.12, GREEN BUILDING STANDARDS, TO THE CHULA VISTA MUNICIPAL CODE The City Council of the City ofChula Vista does ordain as follows: SECTION I. Findings. The City Council finds as follows: I. The City of Chula Vista has a long standing commitment to leadership in green building standards, sustainable design and construction practices, water and other resource conservation and the reduction of greenhouse gas emissions. The City has committed to reducing its citywide greenhouse gas (GHG) emissions to 20% below 1990 levels by 2010. 2. GHG reduction has been mandated by Governor Schwarzenegger through executive orders and in his signing into law AB 32 in 2006. AB 32 requires a reduction of GHG emissions to 1990 levels by 2020. 3. A 2005 Greenhouse Gas Emissions inventory indicated that Chula Vista's annual citywide greenhouse gas levels had increased by 35% since 1990 due primarily to residential growth. 4. According to studies published by the United States Green Building Council, the construction, demolition and operation of buildings in the United States collectively consume up to 39% of the total energy used, 12% of all fresh water supply, and 40% of all raw materials used in the United States. Buildings also generate 39% of total emission of greenhouse gases. 5. The California Building Standards Comrnission (CBSC) and the Department of Housing and Community Development (HCD) developed and approved a California Green Building Standards Code (CGBSC) gleaned from nationally recognized programs and based on an open public adoption process. 6. Green building design, construction, and operation can have a significant positive effect on resource conservation, energy eftlciency, waste and pollution generation, and the health and productivity of a building's occupants over the life of the building. Requiring commercial and residential projects to incorporate green building measures is necessary and appropriate to achieve the public health and welfare benefits of green building. 7. Moditlcations to the California Building Standards, as detailed in this Ordinance, are reasonably necessary due to local climatic conditions. As a result of high summer ambient temperatures and periods of heat waves, average load demand and peak load demand of energy used in Chula Vista is an important factor concerning public safety and adverse economic impacts of power outages or power reductions. Reduction of total and peak energy use will have local and regional benefits in the reduction of energy costs for 7-6 Ordinance No. Page 2 the building owner, additional available system energy capacity, and a reduction m greenhouse gas emissions. SECTION II. That Chapter 15.12 is added to the Chula Vista Municipal Code and reads as follows: Sections: Section 15.12.00 I Section 15.12.005 Section 15.12.010 Section 15.12.015 Section 15.12.020 Section 15.12.025 Section 15.12.030 Section 15.12.035 Section 15.12.040 Chapter 15.12 Green Building Standards Purpose Scope Definitions Conflicting Provisions Administration Alternate Materials, Methods of Design and Methods of Construction Green Building Standards Administrative Procedures Appeal Section 15.12.001 Purpose The purpose of this Chapter is to enhance the public health and welfare by promoting the environmental and economic health of the City through the design, construction, maintenance, operation and deconstruction of buildings and other site development by incorporating green building practices into all development. The green building provisions referred to in this Chapter are designed to achieve the following goals: A. Increase energy efficiency in buildings; B. Encourage water and resource conservation; C. Reduce waste generated by construction projects; D. Provide durable buildings that are efficient and economical to own and operate; E. Promote the health and productivity of residents, workers, and visitors to the city. Section 15.12.005 Scope The provisions of this Chapter shall apply to all new residential construction, remodels, additions, and alterations, and to all new nonresidential construction, remodels, additions, and tenant improvements for which a building permit has been applied for on or after the effective date ofthis Chapter ("Covered Projects"). Section 15.12.010 Definitions For the purposes of this Chapter, the following words have the meanings shown in this section. Where a term is not defined in this section, but is defined in Chapter 15.06, or the technical codes Chapters 15.08, 15.10, 15.16, 15.24, 15.26, and 15.28, such term shall have the meaning ascribed to it in Chapter 15.06, or the technical codes Chapters 15.08, 15.10, 15.16, 15.24, 15.26, and 15.28. Where terms are not defined, they shall have their ordinarily accepted meanings within the context with which they are used. Words used in the singular include the 7-7 Ordinance No. Page 3 plural, and the plural the singular. Words used in the masculine gender include the feminine, and the feminine include the masculine. "Building Official" means the officer or other designated authority charged with the administration and enforcement of this chapter, or duly authorized representative. "Chula Vista Green Building Standards" means the green building measures that have been adopted by City Council, and which may be amended from time to time. "Green Building" means a holistic approach to design, construction, and demolition that minimizes the building's impact on the environment, the occupants, and the community. Section 15.12.015 Conflicting Provisions When conflicts occur between this Chapter and other chapters, codes or laws, those provisions providing the greater safety to life shall govern. In other conflicts where sanitation, life safety or fire safety are not involved, the most restrictive provisions shall govern. If there is a conflict with a state or federal law, the higher authority would prevail; if the laws are consistent but the local is more restrictive, the more restrictive would govern. When there is a conflict between a general requirement and a specific requirement, the specific requirement shall apply. Section 15.12.020 Administration The Building Official is authorized and directed to enforce all the provisIOns of this chapter and to adopt and enforce rules and regulations supplemental to this chapter as may be deemed necessary to clarify the application of the provisions of this chapter. Such interpretations, rules and regulations shall be in conformity with the intent and purpose of this chapter. Section 15.12.025 Alternate Materials, Methods of Design and Methods of Construction The provisions of this chapter are not intended to prevent the use of any material, method of design or method of construction not specifically prescribed by this chapter, provided an alternate has been approved and its use authorized by the Building Official. The Building Official may approve an alternate, provided the Building Official finds that the proposed design is satisfactory and complies with the provisions of this chapter and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this chapter. The Building Official may require documentation necessary to make findings for approval. The details of an action granting approval of an alternate shall be recorded and entered in the files of the Building Division. 7-8 Ordinance No. Page 4 Section 15.12.030 Green Building Standards Buildings and building sites covered under Section 15.12.005 shall be designed to include Green Building measures, which have been adopted by City Council resolution as the "Chula Vista Green Building Standards," and which may be amended from time to time. Section 15.12.035 Administrative Procedures A. Submittal of Documents. As part of the application for a building permit, construction plans and specifications shall indicate in the general notes or individual detail drawings the Green Building Standards and product specifications and methods of construction that are required by this Chapter. The Building Official may require the applicant to retain the services of a consultant having expertise in Green Building and/or energy efficiency techniques to review and evaluate complex systems and/or alternate methods or materials of construction and provide recommendations as to compliance with the requirements of this Chapter. The cost of such consultant shall be paid by the applicant. B. Approval of Permit Application. Notwithstanding any other provision of this code, no building permit shall be issued for any covered project until the Building Official has determined that the plans and specifications submitted for the building permit are in compliance with the requirements of this Chapter. C. Compliance Verification. The Building Official shall verify that the Green Building measures and specifications indicated on the permitted plans and construction documents are being implemented at foundation, framing, electrical, plumbing, mechanical, and any other required inspections, and prior to issuance of a final certificate of occupancy. Additional inspections may be conducted as needed to ensure compliance with this chapter. During the course of construction and following completion of the project, the city may require the applicant to provide information and documents showing use of products, equipment, and materials specified on the permitted plans and documents. If, at any stage of construction, the Building Official determines that the project is not being constructed in accordance with the permitted plans and documents, a Stop Order may be issued pursuant to CVMC Section 15.06.060.D. At the discretion of the Building Official, the stop work order may apply to the portion of the project impacted by noncompliance or to the entire project. The stop work order shall remain in effect until the Building Official determines that the project will be brought into compliance with the permitted plans and documents and this Chapter. Prior to final building approval or issuance of a certificate of occupancy, the Building Official shall review the information submitted by the applicant and determine whether the applicant has constructed the project in accordance with the permitted plans and documents. If the Building Official determines that the applicant has failed to construct 7-9 Ordinance No. Page 5 the project in accordance with the permitted plans and documents, then the final building approval and final certificate of occupancy may be withheld, until the Building Official determines that the project is in compliance with this Chapter. Section 15.12.040 Appeal The Board of Appeals and Advisors as established by Chapter 2.26 is hereby designated to hear and decide appeals of orders, decisions, or determinations made by the Building Official relative to the application and interpretation of this Chapter. The Board shall render all decisions and findings in writing to the Building Official and provide a copy to the appellant. The decision of the Board is final. SECTION III. EFFECTIVE DATE. This ordinance will take effect ang be in force thirty .days after final passage. Submitted by: Approved as to form by Gary Halbert AICP, PE Deputy City Manager/ Director of Development Services Q~ ~ City Attorney 7-10 RESOLUTION NO. RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CHULA VISTA ADOPTING THE CHULA VISTA GREEN BUILDING STANDARDS WHEREAS, on July 10, 2008, City Council adopted the Implementation Plans for the Climate Change Working Group Measures; and WHEREAS, a component of the Implementation Plan for Climate Change Working Group Measure No.4, Green Building Standards, proposed the early adoption of the State Housing and Community Development's version of the California Green Building Standards Code; and WHEREAS, staff is presenting to Council an ordinance adding Chapter 15.12, Green Building Standards, to the Municipal Code to require green building measures at tlme of residential and non-residential construction; and WHEREAS, staff compiled the applicable green building measures into a document titled the Chula Vista Green Building Standards (attached as Exhibit "A"); and WHEREAS, the Environmental Review Coordinator has reviewed the proposed ordinance CVMC, Chapter 15.12, Green Building Standards for compliance with the California Environmental Quality Act (CEQA) and has determined that there is no possibility that the activity may have significant effect on the environment; therefore, pursuant to Section 1506l(b)(3) (General Rule) of the state CEQA Guidelines the activity is not subject to CEQA. Although environmental review is not necessary at this time, additional environmental review will be required if applicable, prior to the approval of any future project specific development entitlements including, but not limited to, site development plans, building permits, land development permits, and conditional use permits. WHEREAS, the Board of Appeals and Advisors, at their August 10, 2009 meeting, recommended that Council adopt the Chula Vista Green Building Standards. NOW, THEREFORE, BE IT RESOLVED by the City Council of the City ofChula Vista that it hereby adopts the Chula Vista Green Building Standards, attached as Exhibit "A", as the green building standards in the City of Chula Vista. Presented by Approved as to form by Gary Halbert, AICP, PE Deputy City ManagerlDevelopment Services Director ~Oq) r.. ^ Bart , l1es e IV\ City Attorney H:\BLD HSG\CYGB Ordinances\GB Ordinance\RESOLUTION GBS.doc - 7-11 Exhibit A Chula Vista Green Building Standards Per Chula Vista Municipal Code Chapter 15.12, Green Building Standards, the following green building measures shall apply to all new residential construction, remodels, additions, and alterations, and to all new nomesidential construction, remodels, additions, and tenant improvements. Definitions "Building Official" means the officer or other designated authority charged with the administration and enforcement of this chapter, or duly authorized representative. "Composite wood products" include hardwood plywood, particleboard, and medium density fiberboard. Composite wood products does not include hardboard, structural plywood, structural panels, structural composite lumber, oriented strand board, glued laminated timber as specified in "Structural Glued Laminated Timber" (ANSI AI90.1-2002) or prefabricated wood I-joists. "Energy Code" means the California Energy Code, as adopted and amended by the City in Chapter 15.26 of the Municipal Code. "Green Building" means a holistic approach to design, construction, and demolition that minimizes the building's impact on the environment, the occupants, and the community. "Infiltration" means an uncontrolled inward air leakage from outside a building or unconditioned space, including leakage through cracks and interstices, around windows and doors and through any other exterior or demising partition or pipe or duct penetration. "MERV" means filter minimum efficiency reporting value, based on ASHRAE 52.2-1999. "Moisture content" means the weight of the water in wood expressed in percentage of the weight of the oven-dry wood. "Outdoor Air" (Outside air) means air taken from outdoors and not previously circulated in the building. "VOC" means volatile organic compound and is broadly defined as a chemical compound based on carbon chains or rings with vapor pressures greater than 0.1 millimeters of mercury at room temperature. These compounds typically contain hydrogen and may contain oxygen, nitrogen and other elements. See California Code of Regulations (CCR) Title 17, Section 94508(a). Standards Buildings and building sites shall be designed to include the following green building measures: H:\BLD HSG\CVGB OrdinancesIRequirements GBS.doc - 7-12 Page I of8 A. Storm Water Management and Discharge Control. Projects shall comply 'With the requirements of Chapter 14.20, Storm Water Management and Discharge Control and the City of Chula Vista Development Storm Water Manual. B. Construction Waste Reduction, Disposal and Recycling. Projects shall comply with the requirements of Municipal Code Section 8.25.095, Construction and Demolition Debris Recycling. C. Energy Efficiency. Buildings shall meet the requirements of the Chula Vista Municipal Code Chapter 15.26, Energy Code. D. Air Sealing. I. Join ts and openings. Openings in the building envelope separating conditioned space from lillconditioned space needed to accommodate gas, plumbing, electrical lines and other necessary penetrations must be sealed in compliance with the Energy Code. Armular spaces around pipes, electric cables, conduits, or other openings in plates at exterior walls shall be protected against the passage of rodents by closing such openings with cement mortar, concrete masomy or similar method acceptable to the building official. 2. Other openin gs. Whole house exhaust fans shall have insulated louvers or covers which close when the fan is off. Covers or louvers shall have a minimum insulation value ofR-4.2. E. Water Use I. Indoor Water Use a. 20% Savings. A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water 'Within the building by 20% shall be provided. The reduction shall be based on the maximum allowable water use per plumbing fixture and fittings as required by the California Building Standards Code. The 20% reduction in potable water use shall be demonstrated by one of the following methods. 1. Each plumbing fixture and fitting shall meet the 20% reduced flow rate specified in Table 2, or 11. A calculation demonstrating a 20% reduction in the building "water use baseline" as established in Table I shall be provided. For low-rise residential occupancies, the calculation shall be limited to the following plumbing fixture and fitting types: water closets, urinals, lavatory faucets and showerheads. b. Multiple showerheads serving one shower.' When 'Single shower fixtures are served by more than one showerhead, the combined flow rate of all the showerheads shall not exceed the maximum flow rates specified in the 20% 7-13 Page 2 of 8 reduction column contained in Table 2 or the shower shall be designed to only allow one showerhead to be in operation at a time. TABLE 1 WATER USE BASELINE Fixture Type Flow-rate" Duration Daily uses Occunants j,' Showerheads 2.5 gpm (ciJ 80 psi 8 min. I X Showerheads 2.5 gpm @ 80 psi 8 min. I X Residential Lavatory Faucets 2.2 gpm @ 60 psi I 0.25 min. I 3 X Residential Kitchen Faucets 2.2 gpm (( 60 nsi 4 min. I X Replacement Aerators 2.2 gpm (i ~ 60 psi X Wash Fountains 2.2 [rim space (in.) X /20 gpm (ciJ 60 psi] Meterini! Faucets 0.25 gallons/cycle Y . 0 X ._::Jmm. J Metering Faucets for .25 [rim space (in.) .25 min. X Wash /20 gpm Fountains (ciJ 60 psi] Gravity tank type 1.6 gallons/flush I flush I male' X Water Closets 3 female Flushometer Tank 1.6 gallons/flush I flush I male' X Water Closets 3 female Flushometer Valve 1.6 gallons/flush I flush I male' I X Water Closets 3 female Electromechanical 1.6 gallons/flush I flush I male' X Hydraulic Water 3 female Closets Urinals 1.0 gallons/flush . 1 flush 2 male X Fixture "Water Use" = Flow rate x Duration x Occupants x Daily uses I Except for low-rise residential occupancies, the daily use number shall be increased to three if urinals are not installed in the room. 2 The Flow-rate is from the CEC Appliance Efficiency Standards, Title 20 California Code of Regulations; where a conflict occurs, the CEC standards shall apply. 3 For low rise residential occupancies. the number of occupants shall be based on two persons for the flIst bedroom, plus one additional person for each additional bedroom. 4 For non-residential occupancies, refer to Table A, Chapter 4, 2007 'California Plumbing Code, for occupant load factors. Fixture Type TABLE 2 FIXTURE FLOW RATES Flow-rate Showerheads Lavatory Faucets 2.5 g 2.2 g 7-14 Page 3 of 8 Residential Kitchen Faucets Wash Fountains 2.2 gpm 60 si 2.2 [rim space (in.) /20 g m 60 psi] 0.75 gallons/cycle I 0.25 [rim space (in.) /20 g m 60 psi] 1.6 gallons/flush Metering Faucets Metering Faucets for Wash Fountains Gravity tank type Water Closets Flushometer Tank Water Closets Flushometer Valve Water Closets Electromechanical Hydraulic Water Closets Urinals 1.0 gallons/flush 0.8 gallonslflush Includes water closets with an effective flush rate of 1.28 gallons or less when tested per ASME AI12.19.2 and ASME AI12.19.14. 1.6 gallons/flush 1.28 gallonslflush 1.6 gallonslflush 1.28 gallons/flush 1.6 gallonslflush - 1.28 gallonslflush 2. Outdoor Water Use Landscape and la\vTI areas must conform to the City's outdoor water use policies as detailed in the Chula Vista Landscape Manual, Chula Vista Water Conservation Plan Guidelines and other applicable municipal water conservation ordinances. F. Pollutant Control 1. Covering 0 f duct openings and protection of mechanical equipment during construction. At the time of rough installation, or during storage on the construction site and until final startup of the heating and cooling equipment, all duct and other related air distribution component openings shall be covered with tape, plastic, sheetmetal or other methods acceptable to the building official to reduce the amount of dust or debris which may collect in the system. 2. Finish material. Finish materials shall comply with the following: a. Adhesives and sealants. Adhesives used on the project shall meet the following requirements: 1. Adhesives, adhesive bonding primers, and adhesive primers shall comply with the following table: Table 3 Adhesive VOC Limit Less Water and Less Exem t Com Dunds in Grams er Liter Architectural Applications VOC Limit 7-15 Page 4 of 8 Indoor Carpet Adhesives 50 Carpet Pad Adhesives 50 Outdoor Carpet Adhesives I 150 Wood Flooring Adhesive 100 Rubber Floor Adhesives 60 Suhfloor Adhesives 50 Ceramic Tile Adhesives 65 VCT and Asphalt Tile Adhesives 50 Dry Wall and Panel Adhesives 50 Cove Base Adhesives 50 Multipurpose Construction Adhesives 70 Structural Glazing Adhesives 100 Single Ply Roof Memhrane Adhesives 250 ii. Aerosol adhesives shall meet the requirements of California Code of Regulations, Title 17, commencing with Section 94507. b. Paints and coatings. A rchitectural paints and coatings shall comply with the following table: Table 4 Coating VOC Limits Grams ofVOC Per Liter of Coating, Less Water and Less Exempt Compounds Coatinl! Cate!7orv Limit Bond Breakers 350 Clear Wood Finishes 275 Varnish 275 Sanding Sealers 275 Lacquer 275 Clear Brushing Lacquer 275 Concrete-Curing Compound 100 Dry-Fog Coatings 150 Fire-Proofing Exterior Coatings 350 Flats I 50 Floor Coatings 50 Graphic Arts (Sign) Coatings 500 Industrial Maintenance (1M) Coatings 100 High Temperature 1M Coatings 420 Zinc-Rich 1M Primers 100 JapanslFaux Finish Coatings .350 Magnesite Cement Coatings I 450 Mastic Coatings 300 Metallic Pigmented Coatings 500 7-16 Page 5 of8 Multi-Color Coatings 250 Nonflat Coatings 50 Pigmented Lacquer 275 Pre-Treatment Wash Primers I 420 Primers, Sealers, and Undercoaters 100 Quick-Dry Enamels 50 Quick-Dry Primers, Sealers, and 100 Undercoaters Recycled Coatings 250 Roof Coatings 50 Roof Coatings, Aluminum 100 Roof Primers, Bituminous 350 Rust Preventative Coatings 100 Shellac Clear 730 Pigmented 550 Specialty Primers 100 Stains I 100 Interior 250 Swimming Pool Coatings Repair 340 Other 340 Waterproofing Sealers 100 Waterproofing ConcretelMasonry 100 Sealers Wood Preservatives Below-Ground 350 Other 350 Verification of compliance with this section shall be provided at the request of the building official. Documentation may include, but not limited to, the following: a. Manufacturers product specification. b. Field verifi cation of on-site product containers. 3. Carpet systems. a. All carpet installed in the building interior shall meet the testing and product requirements of one of the following: 1. Carpet and Rug Institute's Green Label or Green Label Plus Program. 11. CA Dept. of Public Health Standard Practice for the testing ofVOCs (Specification 01350). 111. Department of General Services, California Gold Sustainable Carpet Standard. IV. Scientific Certifications Systems Indoor Advantage™ Gold. 7-17 Page 6 of 8 b. Carpet cushion. All carpet cushion installed in the building interior shall meet the requirements of the Carpet and Rug Institute Green Label program. c. Carpet adhesive. All carpet adhesive shall meet the requirements of Table 3. 4. Composite wood products. Hardwood, plywood, particleboard, and medium density fiberboard composite wood products used on the interior or exterior of the building shall meet the requirements for formaldehyde as specified in Table 5. Table 5 Formaldehyde Limits Maximum formaldehyde emissious in parts per million Phase 1 Phase 2 Product Current I Jan 1,2010 Jan 1,2011 Jan 1,2012 Ju] 1,2012 Limits Hardwood Plywood 0.08 0.05 Veneer Core Hardwood Plywood 0.08 0.05 Composite Core Particle Board 0.18 0.09 Medium Density 0.21 0.11 Fiberboard Thin Medium Density Fiberboard (max. 0.21 0.13 thickness of 8 mm) Documentation. Verification of compliance with this section shall be provided as requested by the building official. Documentation shall include at least one of the following. a. Product certifications and specifications. b. Chain of custody certifications. c. Other methods acceptable to the building official. G. Indoor Moisture Control 1. Moisture content of building materi also Building materials with visible signs of water damage shall not be installed. Wall and floor framing shall not be enclosed when the framing members exceed 19% moisture content. Moisture content shall be verified in compliance with the following. a. Moisture content shall be determined with either a probe-type or a contact-type moisture meter. 7-18 Page 7 of 8 b. Moisture readings shall be taken at a point 2 feet to 4 feet from the gradestamped end of each piece to be verified. c. At least three random moisture readings shall be performed on wall and floor framing with documentation acceptable to the building official provided at the time of approval to enclose the wall and floor framing. Insulation products which are visibly wet or have a high moisture content shall be replaced or allowed to dry prior to enclosure in wall or floor cavities. Wet applied insulation products shall follow the manufacturers drying recommendations prior to encl 0 sure. H. Indoor Air Quality and Exhaust 1. Bathroom exhaust fans. Mechanical exhaust fans required in rooms containing a bathtub, shower, or tub shower combination shall be ENERGY STAR compliant and shall terminate outside the building. 2. Filters. Heating and air conditioning filters shall be rated at MERV 6 or higher. Duct system design shall account for pressure drop across the filter. 1. Operation and maintenance manual. At time of final inspection of a new residential or commercial building, the builder shall place in the building a manual which includes all of the following: I. Directions to the owner 0 r occupant that the manual shall remain with the building throughout the life-cycle of the structure. 2. Operation and mainten ance instructions for the following. a. Equipment and appliances. b. Roof and yard drainage, including gutters and downspouts. c. Air frl ters. d. Landscape irrigation systems. 3. I nformation from local utility, water and waste recovery providers on methods to further reduce resource consumption and recycle. 4. Public transportation and/or carpool options availa ble in the area. 5. Educational material on t he positive impacts of an interior relative humidity between 30-60% and what methods an occupant may use to maintain the relative humidity level in that range. 6. I nformation about water conserving landscape and irrigation design and controllers which conserve water. 7. I nstructions for maintaining gutters and downspouts and importance of diverting water at least five feet away from foundation. 8. I nformation on required routine maintenance measures, including but not limited to, caulking, painting, grading around building, etc. - 7-19 Page 8 of 8