Cerritos City Zoning Code
CHAPTER 22
80 ENVIRONMENTAL PERFORMANCE STANDARDS
§ 22.80.010 Adoption.
With the advice of the director of public works, the director of community development, the city manager, and the planning commission, the city council shall adopt, and revise from time to time, a set of environmental performance standards for the conduct and operation of public and private activities within the city, which may include but not be limited to the following:
(1)
Air quality;
(2)
Groundwater quality;
(3)
Wastewater;
(4)
Solid waste disposal;
(5)
Vibration;
(6)
Noise;
(7)
Lighting and glare;
(8)
Radiation;
(9)
Protection from earthquake and other natural and manmade hazards.
(Ord. 413 § 3, 1972; Ord. 770 § 1 (part), 1996)
§ 22.80.020 Purpose.
The environmental performance standards are intended to provide guidelines and standards for the maintenance of a safe, healthy, clean, attractive, and ecologically balanced environment in which persons may reside and work in an atmosphere that is free of pollutants, nuisances and other negative environmental factors. The environmental performance standards procedures are intended to insure that an objective, unbiased determination is made in those cases where there may be reasonable doubt as to whether an individual use or group of uses complies with the environmental performance standards and to formulate practical ways for the alleviation of such noncompliance. The environmental performance standards shall:
(1)
Require potential nuisances to be measured factually and objectively;
(2)
Ensure that all uses shall provide methods to protect the community from hazards, nuisances and other negative environmental factors;
(3)
Govern the location, arrangement, design, construction, maintenance, operation, and conduct of public and private activities within the city;
(4)
Ensure that in no instance shall any land use be operated in a manner as to cause a detrimental effect on adjacent land uses or the community environment as a whole according to the criteria provided herein.
(Ord. 417 § 1 (part), 1972)
§ 22.80.080 Scope of environmental performance standards.
The following environmental performance standards are adopted to govern the location, arrangement, design, construction, maintenance, operation, and conduct of public and private activities within the city with regard to environmental effects.
In any instance of conflicting requirements between this chapter and any other city law or regulation or any law or regulation adopted by reference, the more restrictive provision shall apply.
(Ord. 417 § 1 (part), 1972)
§ 22.80.100 General provisions.
No land or building in any zone or development area shall be used or occupied in any manner so as to create any dangerous, injurious, noxious, or otherwise objectionable condition caused by:
(1)
Fire, explosion, or other hazard;
(2)
Noise or vibration;
(3)
Smoke, dust, or other form of air pollution;
(4)
Heat, cold, dampness, electrical or other disturbances;
(5)
Glare;
(6)
Liquid or solid refuse or wastes;
(7)
Any other substance, condition or element used in such a manner or in such an amount as to adversely affect the surrounding area or adjoining premises. No use shall be undertaken or maintained unless it conforms to all applicable codes, ordinances, regulations, and the regulations set forth herein.
(Ord. 417 § 1 (part), 1972)
§ 22.80.140 Environmental performance standards – Applicability.
All uses specified in the land use zones and the development areas and uses accessory thereto, are subject to the provisions of this chapter.
(Ord. 417 § 1 (part), 1972)
§ 22.80.160 Continued compliance.
Continued compliance with the environmental performance standards is required. Enforcement of the provisions of this chapter shall be the responsibility of the director of community development.
(Ord. 417 § 1, 1972; Ord. 770 § 1 (part), 1996)
§ 22.80.180 Violation of the environmental performance standards.
The provisions of Chapter 23.50, nonconformities, shall apply to the continuance or termination of a nonconforming performance legally in existence prior to the effective date of the ordinance codified herein. Any violation of this chapter created by a use, process, structure, equipment, object or material initiated or installed subsequent to the effective date of the ordinance codified herein is declared to be a public nuisance and a misdemeanor punishable as provided for in Chapter 1.08.
(Ord. 417 § 1 (part), 1972)
§ 22.80.210 Locations where determinations are to be made regarding compliance.
The determination of the existence of any dangerous or objectionable condition shall be made at the location of the use creating such condition or at any point where the existence of such condition may be more apparent. Measurements necessary for enforcement of environmental performance standards pertaining to noise, vibration, odor, or glare, shall be taken not closer than at the lot lines of the establishment or use, or at any point on an adjacent property where the nuisance is greater, except that in multi-family developments measurements shall be taken at the outside boundaries of dwelling units and related private open spaces.
(Ord. 417 § 1 (part), 1972)
§ 22.80.240 Determination of compliance.
The director of community development may determine that there is reasonable cause to believe that a proposed or existing use may be in violation of the environmental performance standards and may initiate an investigation to determine compliance with the environmental performance standards. The director of community development shall be responsible for determining compliance with the environmental performance standards.
(Ord. 417 § 1 (part), 1972; Ord. 770 § 1 (part), 1996)
§ 22.80.260 Required data.
(A)
In order to resolve any question of compliance with the environmental performance standards, the director of community development may require the owner or operator of any proposed or existing use to submit information including, but not limited to, the following:
(1)
Plot and floor plans of the existing or proposed use;
(2)
A detailed description of the type and location of existing or proposed machinery, processes and products;
(3)
Specifications for the mechanisms and techniques used or proposed to be used in restricting or prohibiting the emission of any of the dangerous or otherwise objectionable conditions;
(4)
Measurements of the amount or rate of emission of suspected dangerous or otherwise objectionable elements;
(5)
A comprehensive statement on the environmental impact of the operation of the proposed activity to include, but not be limited to, effects upon the following:
(a)
Air quality, including chemical and particulate pollution, odor, and clarity,
(b)
Water resources,
(c)
Levels of sound pressure and vibration at various distances and locations, hazards,
(d)
Public safety, including fire and traffic,
(e)
Aesthetic impact on planned and existing uses in the vicinity.
(B)
Failure to submit data required by the director of community development to resolve a question of compliance with the environmental performance standards shall constitute a violation of this provision of this code and shall constitute cause for denial of a precise plan application or applications for other city permits.
(Ord. 417 § 1 (part), 1972; Ord. 770 § 1 (part), 1996)
§ 22.80.280 Report by expert consultants.
If the approving authority determines that consultant services are necessary to evaluate the environmental impact of a proposed or existing use, the approving authority may retain an expert consultant or consultants to study and report on the compliance or noncompliance of the proposed or existing use with the environmental performance standards, and to advise how a proposed or existing use, if found to be at variance, can be brought into compliance with standards. Such consultants shall be fully qualified to give the required information and shall be persons or firms mutually agreeable to the director of community development and to the owner or operator of the use in question. In the event of inability to select a mutually agreeable consultant, the approving authority shall select the consultant. The cost of the consultant’s services shall be borne by the owner or operator of the use in question and the owner or operator shall file with the city a bond in an amount not to exceed five thousand dollars to guarantee payment of such costs. The owner or operator of the use in question shall be required to comply with any reasonable request for information considered useful by the consultant in determining the environmental impact of a proposed or existing use. Failure to provide any required bond or information shall constitute a violation of this code and shall constitute cause for denying approval of a precise plan application or other city permits.
(Ord. 417 § 1 (part), 1972; Ord. 770 § 1 (part), 1996)
§ 22.80.310 Precise plan for development.
No precise plan for development shall be approved unless the approving authority determines that the environmental performance standards established herein will be met.
(Ord. 417 § 1 (part), 1972)
§ 22.80.360 Air quality.
Any activity, operation, or device which causes or tends to cause the release of air contaminants into the atmosphere shall comply with the rules and regulations of the county air pollution control district, except as further controlled by the provisions of this section:
(1)
Visible emissions. No visible emissions of gas, smoke, or particulate matter shall be discharged into the atmosphere, with the exception of residential fireplace and bar-be-que use. No combustible refuse incineration shall be permitted;
(2)
Sulfur oxides. The emission of sulfur oxides (calculated as sulfur dioxide) is prohibited;
(3)
Noxious matter. No substance shall be released which may produce any of the following effects beyond the lot lines of the property upon which the emission occurs:
(a)
An ambient air concentration of toxic matter in excess of one thirtieth of the threshold limit values for industrial workers as listed by the American Conference of Governmental Industrial Hygienists and adopted by the county health department. Measurements shall be made from a twenty-four hour sample taken at ground level or any habitable elevation,
(b)
Damage to the health of any individual, animal or vegetation,
(c)
Damage to property, including the soiling or discoloration of the surfaces of any structure or materials;
(4)
Dust. Windborne dusts and debris across lot lines shall be prevented by:
(a)
Planting, wetting, compacting, paving, or other suitable treatment of land surfaces,
(b)
Storing, treating, or enclosing materials,
(c)
Controlling fugitive sources of dust and debris, such as from windows, ventilators, conveyors and horizontal surfaces, by cleaning,
(d)
Such other measures as may be required;
(5)
Odors. No emission shall be permitted of odorous gases or other odorous matter in such quantities as to be readily detectable at the points of measurement specified in Section 22.80.210, with the exception of existing bona fide agricultural activities that conform to health department and city standards and ordinances. Any process which may involve the creation or emission of any odors shall be provided with an adequate secondary safeguard system of control, so that control will be maintained if the primary safeguard system should fail. The “odor threshold” as defined by the American Society of Testing and Materials (dilution method) is adopted as a guide in determining such quantities of offensive odors.
(Ord. 417 § 1 (part), 1972)
§ 22.80.380 Liquid and solid waste.
No wastewater or other potential groundwater contaminant shall be discharged onto or under the ground surface within the city except for such groundwater recharge operations as may be conducted by or under the supervision of the county flood control district and/or the county sanitation district. Any discharge into a public sewer, private sewer, private sewerage disposal system or into the ground of any materials that may contaminate any water supply, interfere with bacterial processes in sewerage treatment, or otherwise cause the emission of dangerous or offensive elements shall be prohibited. All industrial uses in the city shall follow the regulations and provisions of the county sanitation district pertaining to sewer construction and sewer use. Liquid wastes shall be disposed of only by authorized discharge to a public sewer system or by transport to an acceptable disposal facility. Burning, dumping, or littering of solid wastes is prohibited. Solid wastes shall be disposed of only by transport to an acceptable disposal facility, except that inert solid materials may be utilized in landfills and construction when specifically authorized by a grading permit or building permit, and organic materials may be utilized in connection with normal and customary landscaping and agricultural activities providing that such activities meet all the requirements of the Cerritos Municipal Code and these environmental performance standards; and do not endanger groundwater quality.
(Ord. 417 § 1 (part), 1972)
§ 22.80.410 Heat.
No heat shall be generated or transmitted that causes an increase above the ambient temperature in excess of five degrees Fahrenheit at or directly beyond the lot lines of the site from which the heat source is located.
(Ord. 417 § 1 (part), 1972)
§ 22.80.440 Glare.
Direct or reflected glare or other objectionable illumination including, but not limited to, excessive illumination from floodlights and signs or the glare from high temperature processes such as combustion or welding, or otherwise, or any other type of glare, so as to be visible at the points of measurement specified in Section 22.80.200 shall not be permitted. No operation, activity, or use, except those governmental operations activities or uses essential to public safety, shall produce glare so as to cause illumination in any residential district in excess of one footcandle above the ambient night illumination.
(Ord. 417 § 1 (part), 1972)
§ 22.80.460 Vibration.
No vibration (other than from transportation facilities or temporary construction work) shall be permitted which is discernible without instruments at the points of measurement specified in Section 22.80.210.
(Ord. 417 § 1 (part), 1972)
§ 22.80.480 Noise.
In all districts in the city, the following noise standards, unless otherwise specifically indicated, shall apply:
(1)
Maximum sound level. No noise shall be generated which causes the maximum sound level (noise level) at any point on property lines surrounding the premises on which noise is produced to exceed the background (ambient noise) including traffic noise by five dBA measured at the same point, or the following limits, whichever is greater:
Zone or Development Area | Maximum Sound Levels dB(A) |
|---|---|
Residential or agricultural | 50 |
Commercial | 60 |
Industrial | 70 |
Provided further that the sound level at the boundary line between land use areas shall not exceed the average of the maximum permitted sound level for each such area noted above.
(2)
Negative corrections. The sound level limits must be adjusted by addition of the following corrections:
Type of Noise | Correction, (Decibels) |
|---|---|
Steady noise without impulse or prominent pure tones (such as rain noise) | 0 |
Steady impulsive noise (such as hammering or riveting) | -5 |
Steady audible tone components (such as whine, screech, hum) | -5 |
(3)
Positive corrections. One of the following corrections may be applied to the limits and corrections noted above only between the hours of seven a.m. and seven p.m., except for uses in or adjacent to residential areas.
Frequency of Occurrence | Correction, (Decibels) |
|---|---|
Noise occurring not more than fifteen minutes per hour | +5 |
Noise occurring not more than five minutes per hour | +10 |
Noise occurring not more than one minute per hour | +15 |
(4)
Measurement:
(a)
Sound level (noise level) shall be measured with a sound level meter satisfying the specifications of the American National Standard Specifications (S1.4-1961, as amended), which has had its acoustic calibration checked within the previous seven days,
(b)
Measurements shall be made on the nearest property line which faces the noise source, or at any point on an adjacent property where the noise is greater,
(c)
Measurements shall be made on the “A” weighted scale, with fast response, following the manufacturer’s instructions,
(d)
Measurement must be made out of doors with the microphone at a height of not less than four feet above the ground,
(e)
Care shall be taken to avoid readings which are influenced by such extraneous sources as wind, electrical interference, or unusual background (ambient) noise,
(f)
Noise level shall be determined by taking an average of at least three maximum deflections of the pointer.
(5)
Exemptions. The provisions for noise limits shall not be applied to occasional use of equipment for maintenance of any lot or buildings or for building construction, for which a valid building permit has been issued, between the hour of seven a.m. and seven p.m. or for any public works activities or civic event which are authorized by the city.
(6)
Sound transmission through partitions and floors of multi-residential structures or townhouses. Notwithstanding the requirements of the building code, every partition, floor, or floor ceiling combination construction since the effective date of this section that forms a separation between dwelling units, efficient dwelling units, light housekeeping rooms or guest rooms, but not including guest rooms within one family dwelling or between a residential unit and a garage or carport, public corridor, stairway, accessory room, or nonresidential use, shall be constructed with materials in a construction system which has been tested and has achieved a sound transmission loss classification of not less than sound transmission class fifty-two. Where ceilings are not applied directly to the bottom of the floor framing, separation partitions shall extend through the ceiling to the floor above:
(a)
Penetrations of separation partitions shall be limited to the following:
(i)
Doors to public corridors provided they are of solid construction, close tightly against the door stops and extend down to close contact with the threshold
(ii)
Electrical outlet boxes provided they are horizontally separated by not less than twenty-four inches from outlets in the opposite wall surface
(iii)
Plumbing piping provided such penetrations are separated from any living or sleeping room by permanent partitions having all openings provided with solid, tight fitting, closable doors
(iv)
Ventilation ducts in the separation between the corridor and residential units provided there is not less than twenty-five feet of ductwork separating the grille or register locations of residential units from other units,
(b)
Floor-ceiling systems separating residential units from corridors or public rooms shall be constructed with materials in a construction system which has been tested and has been shown to have an impact insulation index of no less than fifty-one,
(c)
All conduit, ducts, pipes and vents within required partitions, floors or floor-ceiling separations shall be isolated from the building construction at points of support by means of resilient sleeves, mounts or underlayments, and all other openings through which such conduit, ducts, pipes or vents pass shall have the excess opening fully sealed with insulative or resilient materials which are approved for this use,
(d)
Unsealed joints in the perimeter of any separation partition or in the perimeter of any opening permitted in the partition shall be caulked with a nonhardening, resilient caulking material approved for this purpose,
(e)
The sound transmission class shall be determined in accordance with American Society for Testing and Materials, E.336-67T A.S.T.M., “Tentative Recommended Practice for Measurement of Airborne Sound Insulation in Buildings.” The impact insulation classification shall be determined in accordance with the U.S. Department of Housing and Urban Development publication “A Guide to Airborne, Impact, and Structure Borne Noise Control in Multi-Family Dwellings.”
(7)
Sound transmission through walls of abutting single-family residential buildings. Notwithstanding the requirements of the building code abutting exterior walls of a residential building that is modified or erected after the effective date of the ordinance codified herein shall be constructed without openings between such walls and of materials in a construction system which has been tested and has achieved a sound transmission loss classification of not less than sound transmission class fifty-two as described in Section 22.80.450(5) (e);
(8)
Sound transmission through exterior walls of residential buildings. Notwithstanding the requirements of the building code, exterior walls of a residential building in the following areas that are modified or erected after the effective date of the ordinance codified herein shall be constructed to the following standards or the standards of Article 7 of the Development Standards, Freeway Buffering, whichever is the more restrictive:
(a)
Within five hundred feet of a freeway the sound transmission class shall be fifty-six as described in Section 22.80.480(5) (e),
(b)
Within one hundred fifty feet of an arterial street the sound transmission class shall be fifty-six as described in Section 22.80.480(5) (e).
(Ord. 417 § 1 (part), 1972)
§ 22.80.500 Energy conservation in residential dwelling units – Thermal design standards.
The purpose of this section is to establish minimum energy insulation standards that will lead to the reduction of energy consumption in residential dwelling units. It is further intended to provide standards, regulations and requirements in order to comply with the requirements of the California Administrative Code, Title 24, Part 6, Division T20, Chapter 2, Subchapter 5, Article 1, Section T20-1401 entitled “Energy Insulation Standards,” adopted by the Commission of Housing and Community Development on February 22, 1974.
(1)
Application and Scope. This section shall apply to all precise plan applications made subsequent to the effective date of the ordinance codified in this section. All new hotels, motels, apartment houses, lodginghouses, dwellings and other residential buildings and additions to thereof, which are heated and/or cooled, shall be constructed to comply with the requirements of this section.
(2)
Alternative Material, Method of Construction, Design or Insulating Systems. The provisions of this section are not intended to prevent the use of any material, method of construction, design or insulating system, provided, that any such alternative meets or exceeds the standards prescribed herein. The precise plan applicant shall submit detailed information concerning the thermal performance of the materials, methods of construction, design or insulating systems he intends to utilize to the department of community development and the department of public works for their approval. Such information shall include the manufacturer’s name and address, standard specifications and evidence that stated specifications were arrived at by standard American Society of Heating, Refrigeration and Air-Conditioning Engineers (A.S.H.R.A.E.) methods. The director of community development and the director of public works may approve any such alternative methods of construction, design or insulation system including designs utilizing nondepleting energy systems such as solar, wind or other nondepletable sources, provided that the proposed design and/or alternative complies with or exceeds the provisions of this section or provides design solutions which can be shown to save equivalent heat gain or heat loss amounts of energy savings and is consistent with the goals and objectives of the general plan and conforms to the design criteria and standards of the development code. An alternative insulation system, whose U value cannot be determined, may be permitted, provided, that said system can be proven to conserve at least the equivalent amount of energy as is intended by the requirements of this section. The director of community development shall require that sufficient evidence or proof be submitted to substantiate any claims made regarding the installation and use of such alternative system and may require testing of the final insulation.
(3)
Definitions.
(A)
“Interior heated or cooled space”
means any volume of air and the objects therein which are cooled with energy derived from fossil fuels, nuclear fuels, hydroelectric power or other energy sources.
(B)
“Enclosed unheated spaces”
means any volume physically separated from ambient climatic conditions, which is not provided with a heat supply system capable of maintaining a minimum temperature of fifty degrees Fahrenheit.
(C)
“Walls”
means any surface system, including glazing and doors, which separates interior heated or cooled spaces from ambient climatic conditions while maintaining an angle of twenty degrees or less with vertical. The gross surface area is measured for any dwelling unit or group of units serviced by a specific heating or cooling system.
(D)
“Ceilings”
means any surface system which separates interior heated or cooled spaces from enclosed unheated spaces or from ambient climatic conditions while maintaining an angle of forty-five degrees or less with the horizontal.
(E)
“Glazing”
means any portion of a wall or ceiling surface system which is transparent or translucent to visible solar radiation.
(F)
“Glazing area”
means the area of glazing in exterior openings including the sash area.
(G)
“Fixed glazing”
means a glazing system so designated such that once installed the glazing materials cannot be moved except for replacement.
(H)
“Nonfixed glazing”
means a glazing system so designated such that once installed any portion of the glazing material can be moved with at least one degree of freedom.
(I)
“Opaque walls and ceilings”
means the nonglazed portion of the wall or ceiling surface systems.
(J)
“Shading coefficient”
means a ratio of the solar heat gain through an unshaded glazed system to that of a single light of double strength window glass under the same set of conditions.
(K)
“Floors”
means the surface system immediately adjacent to the bottom surface of the interior or cooled space.
(L)
“High rise”
means any building containing four or more stories of space including, but not limited to, dwelling space, basements, parking and/or nonhabitable areas in subterranean and/or ground levels.
(M)
“Overall heat transfer coefficient (U)”
means the total heat flow through a given construction assembly, air to air, expressed in BTU/HR., per square foot, per degree Fahrenheit temperature difference. U = RT where RT equals the sum of the resistance (R) from the individual components of the assembly. The U value shall be calculated according to A.S.H.R.A.E. methods.
(N)
“Thermal conductivity (k)”
means the time rate of heat flow through one square foot of homogeneous material one inch thick, when there is a temperature difference of one degree Fahrenheit between the opposite faces of the material expressed in BTU/HR., square foot, degree Fahrenheit per inch.
(O)
“Surface heat transfer coefficient (h)”
means the total heat flow through the interface of two materials of different phases expressed in BTU per square foot-hour-degree Fahrenheit.
(P)
“Thermal resistance (R)”
means the measure of the resistance of the material or building component to the passage of heat. The resistance value (R) of mass-type insulations shall not include any value for reflective facing. Resistance values for spaces which contain occasional framing member shall reflect the presence of the member. The R values to be used for the surface air films, if not given in the A.S.H.R.A.E. Handbook of Fundamentals, are given to be:
(i)
For walls: R (interior) = .68, R (exterior) = .17;
(ii)
For ceilings that separate heated interior spaces and unheated enclosed spaces: R (interior) = .92, R (exterior) = 1.50;
(iii)
For ceilings that separate heated interior spaces from ambient climatic conditions: R (interior) = .62, R (exterior) = .17;
(iv)
For floor systems that separate heated or cooled interior spaces from unheated spaces, unheated basements, unheated garages or ventilated crawl spaces: R (interior) = .92, R (exterior) = .40;
(v)
For floor systems that separate heated or cooled interior spaces from the earth: R (interior) = .92, R (earth, not an air surface film) = 2.76;
(vi)
For surface areas that do not meet the definition of walls or ceilings (such as nonrectilinear building shells) an R value submitted by a mechanical engineer registered in the state shall be accepted.
(Q)
“Tinted glazing”
means glazing which is permanently tinted or surface-coated by the manufacturer of the glazing material and provides a maximum shading coefficient as prescribed in (4) (G) of this section.
(R)
“Degree day”
means a unit, based upon temperature difference and time, used in estimating fuel consumption and specifying nominal annual heating load of a building in winter. For any one day, when the mean temperature is less than sixty-five degrees Fahrenheit, there exists as many degree days as there are Fahrenheit degrees difference in temperature between the mean temperature for the day and the sixty-five degrees Fahrenheit. The degree day for the city geographical area shall be that adopted by the California State Commission on Housing and Community Development.
(S)
“Cooling system”
means a system for cooling air by mechanical or other means and discharging such air into a dwelling unit. This definition shall not include evaporative cooling.
(4)
Thermal Design Standards.
(A)
Opaque Ceilings. The design of the opaque portion of the ceilings which separate heated interior spaces from unheated enclosed spaces shall provide a maximum U value of .050, when the effects of occasional framing members such as studs and joists are not considered. The design of the opaque portion of the ceilings which separate heated interior spaces from ambient climatic conditions shall provide a maximum U value of .045. In both cases, when the effects of all elements of the ceiling construction, including occasional framing members such as studs and joists are considered or when all of the thermal insulation is installed so that it is not penetrated by framing member, the U value shall be a maximum of .06.
(B)
Opaque Walls. The design of the opaque portion of the walls which separate heated interior spaces from unheated enclosed spaces shall provide a maximum U value of .08, when the effects of occasional framing members such as studs and joists are not considered. When the effects of all elements of the wall construction, including occasional framing members such as studs and joists are considered, or when all of the thermal insulation is installed so that it is not penetrated by framing members, the U value shall be a maximum of .095.
(C)
Glazing Limits. The basic limits for glazing as a percentage of the exterior wall area exposed to ambient temperatures shall be twenty percent of low-rise buildings and forty percent for high-rise buildings; also, ten percent ambient temperatures, but which separate individual dwelling units, shall be permitted in addition to the basic glazing limits allowed for low-rise and high-rise buildings. Glazing shall be in accordance with subdivisions (D), (E), (F) and (G) of this subsection or for buildings exceeding the basic limits, treatment of the building may be utilized which will limit the design heat loss and heat gain for each exterior wall to that which would be allowed for the same exterior wall with not more than the basic limit of single glazing.
(D)
Fixed Glazed Walls. The design of the fixed glazing systems in the walls of buildings constructed in accordance with the glazing limits shall provide a maximum U value of 1.20. The design of the fixed glazing limits shall provide a maximum U value of .65.
(E)
Nonfixed Glazed Walls. The design of the non-fixed glazing systems in the walls of buildings constructed in accordance with the glazing limits shall provide a maximum U value of 1.20. The design of the nonfixed glazing systems in the wall of buildings constructed exceeding the glazing limit shall provide a maximum U value of .80.
(F)
Glazed Ceilings. The design of all fixed and non-fixed glazing in all ceilings shall provide a maximum in value of .55. Glazing in the ceiling system shall be selected to provide a maximum shading coefficient of .45.
(G)
Tinted Glazing. Residential units whose total glazing area exceeds the glazing limits and which are equipped with and/or prepared for cooling systems shall have a maximum shading coefficient of .55.
(H)
Floors. The design of floors over unheated spaces, unheated basements, unheated garages or ventilated crawl spaces shall provide a maximum U value of .09.
(I)
Foundation Walls. The design of foundation walls of heated basements or heated crawl spaces above grade shall be insulated to provide a maximum U value of .15. Insulation may be omitted from floors over heated basement areas or crawl spaces provided, that foundation walls are insulated.
(J)
Crawl Space Perimeter Walls. The design of perimeter walls around crawl spaces which are used as a supply or return plenum shall be insulated to provide a maximum U value of .15.
(K)
The design of the slab-on-grade floor systems shall provide a maximum U value of .25.
(L)
Infiltration. All doors and window openings to the exterior or to unheated spaces such as garages shall be fully weather-stripped, gasketed, caulked or otherwise treated to reduce the infiltration of air. All manufactured windows and sliding glass doors shall meet the air infiltration standards of the 1972 American National Standards Institute, when tested in accordance with the ASTME 283-73 with a pressure differential of 1.57 lbf/ft.2 shall be so certified and labeled.
(M)
Piping. All stream and steam condensate return piping and all domestic or heating hot water piping, which is located in attics, garages, crawl spaces or unheated spaces other than between floors or in interior walls, shall be insulated to provide a maximum heat loss of fifty BTU/Hr. per linear foot for piping up to and including two inches and one hundred BTU/Hr. per linear foot for larger sizes.
(N)
Heating and Cooling Ductwork. All ductwork which transfers a heating or cooling medium through an unheated or cooled space shall be insulated with a material which has a minimum R value of 7.
(O)
Attic Ventilation. Attics shall be adequately ventilated and shall provide ventilation openings of not less than four square inches for each ten square feet of attic area. Approximately fifty percent of the required vented area shall be located at the highest point of the attic, provided that construction allows, and shall be distributed at either end of the attic. Approximately fifty percent of the required vented area shall be located at the lowest point of the attic and shall be distributed around the perimeter of the attic of the residential unit. The director of community development may permit variations of the vented area locations in order to allow for flexibility of design and construction, provided that the minimum ventilation area requirements are complied with.
(5)
Compliance. Upon completion of the installation of insulation, a card certifying that the insulation has been installed in conformance with the requirements of these regulations shall be completed, executed by the insulation applicator and/or developer, and approved by the director of community development. The approved insulation compliance card shall be posted in a conspicuous location adjacent to the heating unit of the residential structure and shall be posted by the developer prior to receiving final occupancy inspection.
(6)
Additions to Existing Buildings. Buildings and/or structure additions to an existing building and structure shall be required to conform to the requirements prescribed in this section, provided, however, that the existing building and/or structure was required to conform to these requirements as an original condition of approval of the precise plan.
(Ord. 475 § 2, 1974; Ord. 493 (part), 1975; Ord. 525 § 2, 1976; Ord. 770 § 1 (part), 1996)
§ 22.80.510 Flammable gases and flammable or combustible liquids.
The manufacture of flammable gases and flammable or combustible liquids shall be prohibited. The utilization or storage of such gases shall be permitted in accordance with the provisions and regulations of the fire code, city development standards, environmental performance standards, and the industrial and industrial commercial zones. In case of any conflict between provisions contained in the abovementioned references or any other applicable provisions, regulations, or standards, the more restrictive of these shall prevail.
Storage of such gases or liquids shall be permitted only when necessary to facilitate manufacturing, warehousing, or comparable conditional uses permitted in the industrial and industrial commercial zones. The director of community development shall review an application prior to issuance of building permits and installation to assure that the aesthetic element is met in any proposed use or change of use and that no detrimental effects shall exist.
(Ord. 417 § 1 (part), 1972; Ord. 569 § 1, 1979; Ord. 770 § 1 (part), 1996)
§ 22.80.540 Installation of smoke detection devices required.
Every owner of a multifamily residential building shall install or cause to be installed an approved smoke detection device within each dwelling unit of said building and shall receive and maintain a certificate from the city which complies with the provisions of this section, as follows:
(1)
Notice. Within twenty days after the effective date of the ordinance codified in this section, the director of community development shall send out notice of the requirements of this section to the owners of all multifamily residential buildings subject to the provisions hereof and shall request all such owners to submit an application for certification within forty days of the date of said notice.
(2)
Application. Within forty days after the date of said notice, each owner shall submit to the director of community development an application which application shall be in a form and content approved by the director of community development and contain a request for certification and plans showing the proposed type and design of the smoke detection devices and the location of such devices when installed. A minimum of one smoke detection device shall be required per dwelling unit except that if a single dwelling unit occupies more than one floor, then at least one smoke detection device shall be installed per floor. The devices shall be of a type and located so as to conform with the requirements of the building code and Section 15.04.110 of this code.
(3)
Installation and inspection. Within forty days after approval of the plans by the director of community development and the issuance of all necessary permits, the owner shall install or cause to be installed the smoke detection devices in accordance with the approved plans and permits. Thereafter each owner shall permit inspection by the city building official and shall make all corrections ordered by such official.
(4)
Certification. Within one hundred fifty days after the effective date of the ordinance codified in this section, every owner of a multifamily residential building shall certify to the director of community development unless the necessary plans and permits have not been timely approved that it has installed or caused to be installed smoke detection devices in accordance with the approved plans and permits. Said certification shall be in a form and content approved by the director of community development.
(5)
Recertification. Every six months after certification, the owner of a multifamily residential building shall test and maintain each smoke detection device in his building and shall keep a record of such testing and maintenance available for inspection by the director of community development. Each year on the anniversary date of certification, each owner shall recertify to the director of community development that within the previous thirty days each smoke detection device in his building has been inspected and tested, all inoperable parts have been replaced, all batteries, if any, whether or not they are functioning, have been replaced and the smoke detection device is properly functioning.
(6)
Information Program. Every owner of a multifamily residential building shall assist the city when necessary in distributing informational and educational materials to tenants concerning the smoke detection devices and shall provide each new tenant with information concerning the proper operation and testing of smoke detection devices.
(7)
Penalty. For each day that plans are not submitted or that smoke detection devices are not installed or that certifications or recertifications are not provided in violation of this section, and for each smoke detection device that is not found to be properly functioning within ten days after recertification, the owner shall be guilty of an infraction. Notwithstanding the foregoing, any offense which would otherwise be an infraction shall be a misdemeanor if the defendant has been convicted of four or more violations of this section within the twelve month period immediately preceding the commission of the offense.
(8)
Multifamily Residential Buildings. As used in this section, the term “Multifamily residential building” means any building containing four or more dwelling units where the dwelling units are not under separate ownership as in a condominium and are constructed to meet fire rating requirements under the building code for apartments.
(Ord. 573 § 1, 1980; Ord. 770 § 1 (part), 1996)
