Chapter 13.02
BUILDING REGULATIONS1

Sections:

13.02.010    Adoption of 2022 California Building Code and related codes.

13.02.020    Violations.

13.02.030    Board of appeals.

13.02.040    Fees.

13.02.050    Administration.

13.02.060    Amendments to Chapter 1 of the California Building Code.

13.02.065    Amendments to Chapter 2 of the California Building Code.

13.02.070    Amendments to Chapter 5 of the California Building Code.

13.02.075    Amendments to Chapter 7A of the California Building Code.

13.02.080    Amendments to Chapter 9 of the California Building Code.

13.02.090    Amendments to Chapter 15 of the California Building Code.

13.02.095    Amendment to Chapter 18 of the California Building Code.

13.02.100    Amendments to Chapter 31 of the California Building Code.

13.02.120    Amendments to the California Residential Code.

13.02.135    Amendments to the California Electrical Code.

13.02.140    Amendments to the California Plumbing Code.

13.02.150    Building deposits.

13.02.010 Adoption of 2022 California Building Code and related codes.

The city council, for the purpose of prescribing regulations for the erecting, construction, enlargement, alteration, repair, improving, removal, conversion, demolition, occupancy, equipment, use, height, area and maintenance of all buildings and structures in the city, hereby adopts the following codes by reference and the amendments to these codes as set forth in this chapter:

A. The California Building Code, 2022 Edition, Volumes 1 and 2, with amendments, based on the 2021 International Building Code as published by the International Code Council;

B. The California Residential Code, 2022 Edition, with amendments, based on the 2021 International Residential Code as published by the International Code Council;

C. The California Electrical Code, 2022 Edition, based on the 2020 National Electrical Code as published by the National Fire Protection Association;

D. The California Mechanical Code, 2022 Edition, based on the 2021 Uniform Mechanical Code as published by the International Association of Plumbing and Mechanical Officials;

E. The California Plumbing Code, 2022 Edition, based on the 2021 Uniform Plumbing Code as published by the International Association of Plumbing and Mechanical Officials;

F. The California Green Building Standards Code, 2022 Edition, as published by the California Building Standards Commission;

G. The California Energy Code, 2022 Edition, as published by the International Code Council;

H. The California Administrative Code, 2022 Edition, as published by the International Code Council;

I. The California Referenced Standards Code, 2022 Edition, as published by the International Code Council;

J. The California Existing Building Code, 2022 Edition, as published by the International Code Council;

K. The International Property Maintenance Code, 2021 Edition, as published by the International Code Council;

L. The California Fire Code, 2022 Edition, as published by the International Code Council.

The provisions of these codes as amended by this chapter and Chapter 13.04 AVMC (“codes”) shall constitute the building regulations of the city of Aliso Viejo. The primary codes and the codes as adopted by reference and amended by the city are on file for public examination in the office of the building official. Such codes are hereby adopted and incorporated as though set forth in full in this section. [Ord. 2022-231 § 4].

13.02.020 Violations.

For all sections of the codes including any and all amendments to these codes included within this chapter, the following shall apply pertaining to violations and shall replace any sections of those codes that pertain to violation.

It shall be unlawful for any person, firm or corporation to erect, construct, enlarge, alter, repair, move, improve, remove, convert or demolish, equip, use, occupy, or maintain any building or structure in the city, or cause same to be done, contrary to or in violation of any of the provisions of this chapter.

Any person, firm, or corporation violating any of the provisions of this chapter shall be deemed guilty of a misdemeanor, and each such person shall be deemed guilty of a separate offense for each and every day or portion thereof during which any violation of any of the provisions of this chapter is committed, continued, or permitted, and upon conviction of any such violation such persons shall be punished by a fine of not more than $1,000 or by imprisonment for not more than six months, or by both such fine and imprisonment. [Ord. 2022-231 § 4].

13.02.030 Board of appeals.

For all sections of the codes, including any and all amendments included within this chapter, the following shall apply pertaining to board of appeals and shall replace any sections of those codes that pertain to board of appeals.

In order to determine the suitability of alternate materials and methods of construction and provisions of these codes, there shall be a board of appeals, consisting of five members, composed of the mayor and the other members of the city council. Said members shall hold their respective membership on said board of appeals by reason of, and concurrently with, their terms of service as council members and shall cease to be such members upon their ceasing to be such council members. The building official shall be the secretary of the board. The board may adopt reasonable rules and regulations for conducting its investigations and shall render all its decisions and findings on contested matters, in writing to the building official, with a duplicate copy thereof to any appellant or contestant affected by any such decision or finding, and may recommend to the city council such new legislation, if any, as is consistent therewith.

Three members of the board shall constitute a quorum. The mayor shall be the presiding officer of the board and in the mayor’s absence the mayor pro-tem shall preside. Meetings shall be conducted in accordance with the Brown Act.

The board shall have the right, subject to such limits as the city council may prescribe by resolution, to employ at the cost and expense of the city, such qualified individuals as the board, in its discretion, may deem reasonably necessary in order to assist it in its investigations and making its findings and decisions. [Ord. 2022-231 § 4].

13.02.040 Fees.

All fees set forth in sections of the codes adopted by reference and amended by the city in this chapter and Chapter 13.04 AVMC shall be as set forth by resolution of the city council. [Ord. 2022-231 § 4].

13.02.050 Administration.

Chapter 1 of the 2022 California Building Code, as amended by the city in this chapter, is hereby adopted as the administrative provisions of all the codes in this chapter and Chapter 13.04 AVMC. [Ord. 2022-231 § 4].

13.02.060 Amendments to Chapter 1 of the California Building Code.

Chapter 1, Division II, Scope and Administration, is amended as follows:

Section 101.1, Title, is amended to include the following:

These regulations shall be known as the Building Code of the City of Aliso Viejo, hereinafter referred to as “this code.”

Section 101.4, Referenced Codes, is deleted in its entirety and replaced with the following:

101.4. Referenced Codes. The 2022 California Building Standards Code shall be considered part of the requirements of this code to the extent of each such reference.

Section 104.8, Liability, is amended to include the following:

The provisions of this section shall apply if the Building Official or his/her authorized representative are employees of this jurisdiction and shall also apply if the Building Official or his/her authorized representatives acting under contract as agents of this jurisdiction.

Section 105.2, Work Exempt from Permit, under Subsection Building is amended to revise Item 2 and add Item 14:

Section 105.2. Work Exempt from Permit.

Building:

2. Walls and fences less than 72 inches in height.

14. Decks not exceeding 200 square feet (18.58m2) in area, that are not more 30 inches (762mm) above grade at any point, are not attached to a dwelling and do not serve the exit door required by Section R311.2.

Section 105.5 is amended as follows:

Section 105.5. Expiration. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced with 12 months after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced. The Building Official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 each. The extension shall be requested in writing and justifiable cause demonstrated.

Time limitation for permit expiration as the result of code enforcement shall be as per notice of violation or as otherwise determined by the Building Official.

Section 105.8 is added to read as follows:

Section 105.8. Reconstruction. If the value of the reconstruction (or renovations) of a building is equal to or exceeds 75 percent of the value of the building, the entire building shall comply with the code provisions for new construction. The value of the reconstruction (or renovation) for a property shall include the value of all construction stemming from construction-related permits issued within the last two years.

Section 107.3, Examination of Documents, is amended to add a paragraph as follows:

An expedited review and permit issuance process shall be provided for EV Charging Stations and simplified forms for submittal will be made available on City’s website.

Section 109.4, Fees, is amended to read as follows:

Failure to pay fees and obtain a permit before commencing work shall be deemed a violation of this chapter. At the Building Official’s discretion, a violation may result in an assessment, which includes the required permit fees, of up to double the permit fees for work on a building, structure, mechanical, gas, electrical or plumbing system before obtaining the necessary permits. Payment of assessed fees shall not relieve any person from fully complying with the requirements of this chapter nor from any other penalties prescribed herein.

Section 111.5, Declaration of Intended Use, is added to read as follows:

When required by the fire chief, with the concurrence of the building official, any or all owners of any occupancy may be required to record with the county recorder of the County of Orange a legal instrument of intended use. This legal instrument shall be called a declaration of intended use. The declaration of intended use shall be in accordance with the requirements of this section. It shall specifically state, by occupancy classification, all intended uses of all portions of the occupancy and may not be modified or withdrawn without the approval of the fire chief with the concurrence of the building official. Unapproved changes of occupancy or use can be cause for an immediate hearing before the building official and the fire chief or their designees. Such hearing shall be conducted to rule on the revocation of the certificate of occupancy and the revocation of all permits issued to all owners, tenants, operators and occupants of all portions of the occupancy. The declaration of intended use shall be binding on all present and future owners, tenants, operators and occupants.

Section 111.5.1, Certified Copies, is added to read as follows:

Section 111.5.1 Certified Copies. A certified copy of the recorded declaration of intended use may be required to be filed with the building official and the fire chief before any certificate of occupancy and/or any permits are issued to any or all owners, tenants, operators or occupants of the occupancy.

[Ord. 2022-231 § 4].

13.02.065 Amendments to Chapter 2 of the California Building Code.

Chapter 2, Definitions, is amended as follows:

Section 202, Definitions, is revised to add the following definitions:

BARRIER. Barrier is a fence, wall, building wall, or any combination of these that completely surrounds the swimming pool and obstructs access to the swimming pool.

SPARK ARRESTER. A listed device constructed of noncombustible material specifically for the purpose of meeting one of the following conditions:

1. Removing and retaining carbon and other flammable particles/debris from the exhaust flow of an internal combustion engine in accordance with California Vehicle Code Section 38366.

2. Fireplaces that burn solid fuel in accordance with California Building Code Chapter 28.

SWIMMING POOL. Any body of water created by artificial means which is designed, intended for use, or used for swimming or immersion purposes, which has a water depth exceeding 18 inches. The term, “pool,” includes swimming pools, spas, hot tubs, above-and below-ground, and vinyl-lined pools; pool does not include plumbing fixtures such as bathtubs nor does it apply to man-made lakes, reservoirs, farm ponds, or ponds used primarily for public park purposes, water conservation purposes, irrigation purposes or for the watering of livestock.

[Ord. 2022-231 § 4].

13.02.070 Amendments to Chapter 5 of the California Building Code.

Chapter 5, General Building Heights and Areas, is amended to read as follows:

SECTION 502.1 Address Identification

502.1. New and existing buildings shall be provided with approved address identification. The address identification shall be legible and placed in a position that is visible from the street or road fronting the property. Address identification characters shall contrast with their background. Address numbers shall be Arabic numbers or alphabetical letters. Numbers shall not be spelled out. Each character shall be not less than 4 inches in height with a stroke width of not less than 0.5 inch. For R-3 and other occupancies, the numbers shall be a minimum of 6 inches high with a minimum stroke width of 1 inch. Where required by the fire official, address identification shall be provided in additional approved locations to facilitate emergency response. Where access is by means of a private road and the building address cannot be viewed from the public way, a monument, pole or other sign or means shall be used to identify the structure. Address identification shall be maintained.

[Ord. 2022-231 § 4].

13.02.075 Amendments to Chapter 7A of the California Building Code.

Chapter 7A, Materials and Construction Methods for Exterior Wildfire Exposure. Adopt Chapter 7A in its entirety with the following amendments:

Section 701A.3 is amended to read as follows:

701A.3 Application. New buildings located in any Fire Hazard Severity Zone or any Wildland-Urban Interface Fire Area designated by the enforcing agency constructed after the application date, and additions to and remodel of buildings constructed before 2012 located in areas currently designated as such, shall comply with the provisions of this chapter. The provisions shall also apply to additions, remodels, and accessory structures located within 100 feet of a fuel modification zone, vegetation management area, or similar area containing hazardous combustible vegetation, regardless of whether the property is currently located in a designated Fire Hazard Severity Zone or Wildland-Urban Interface Fire Area, when materials and/or construction methods for exterior wildfire exposure were previously required at the property by the Building or Fire Code Official.

Exceptions:

1. Buildings of an accessory character classified as a Group U occupancy and not exceeding 120 square feet in floor area, when located at least 30 feet from the applicable building.

2. Buildings of an accessory character classified as a Group U occupancy of any size located least 50 feet from an applicable building.

3. Buildings classified as a Group U Agricultural Building, as defined in Section 202 of this code (see also Appendix C – Group U Agricultural Buildings), when located at least 50 feet from an applicable building.

Section 710A.3.3 is amended to read as follows:

710A.3.3 Detached Miscellaneous Structure Requirements. Detached accessory structures within 50 feet of an applicable building shall comply with the requirements of this section.

Section 710A.4, Requirements, is amended to read as follows:

710A.4 Requirements. Accessory structures shall be constructed of non-combustible or ignition-resistant materials.

[Ord. 2022-231 § 4].

13.02.080 Amendments to Chapter 9 of the California Building Code.

Chapter 9, Fire Protection and Life Systems, is amended as follows:

Section 903.2, Where Required, is amended to read as follows:

903.2 Approved automatic sprinkler systems in buildings and structures shall be provided when one of the following conditions exists:

1. New buildings: Notwithstanding any applicable provisions of Sections 903.2.1 through 903.2.19, an automatic fire-extinguishing system shall also be installed in all occupancies when the total building area exceeds 5,000 square feet as defined in Section 202 of the California Building Code, regardless of fire areas or allowable area, or is more than two stories in height.

Exception: Subject to approval by the Fire Code Official, open parking garages in accordance with Section 406.5 of the California Building Code.

2. Existing Buildings: Notwithstanding any applicable provisions of this code, an automatic sprinkler system shall be provided in an existing building when an addition occurs and one of the following conditions exists:

a. When an addition is 33% or more of the existing building area, and the resulting building area exceeds 5000 square feet.

b. When an addition exceeds 2000 square feet and the resulting building area exceeds 5000 square feet.

c. An additional story is added above the second floor regardless of fire areas or allowable area.

Exception: Additions to Group R-3 occupancies shall comply with Section 903.2.8 (2).

Section 903.2.8, Group R, is amended to read as follows:

903.2.8 Group R. An automatic sprinkler system installed in accordance with Section 903.3 shall be provided throughout all buildings with a Group R fire area as follows:

1. New Buildings: An automatic sprinkler system shall be installed throughout all new buildings, with the exception of accessory dwelling units where automatic fire extinguishing systems have not been required for the primary residence.

2. Existing R-3 Buildings: An automatic sprinkler system shall be installed throughout when one of the following conditions exists:

a. When an addition is 33% or more of the existing building area as defined in Section 202, and the final area is larger than 3,600 square feet within a two-year period.

b. An addition when the existing building is already provided with automatic sprinklers; or,

c. When an existing Group R Occupancy is being substantially renovated, and where the scope of the renovation is such that the Building Code Official determines that the complexity of installing a sprinkler system would be similar as in a new building.

Exceptions:

1. Existing Group R-3 occupancies converted to Group R-3.1 occupancies and not housing bedridden clients, not housing nonambulatory clients above the first floor, and not housing clients above the second floor.

2. Existing Group R-3 occupancies converted to Group R-3.1 occupancies housing only one bedridden client and complying with Section 435.8.3.3 of the California Building Code.

3. Pursuant to Health and Safety Code, Section 13113, occupancies housing ambulatory children only, none of whom are mentally ill children or children with intellectual disabilities, and the buildings or portions thereof in which such children are housed are not more than two stories in height, and building or portions thereof housing such children have an automatic fire alarm system activated by approved smoke detectors.

4. Pursuant to Health and Safety Code, Section 13143.6, occupancies licensed for protective social care which house ambulatory clients only, none of whom is a child (under the age of 18 years), or who is elderly (65 years of age or over).

When not used in accordance with Section 504.2 or 506.3 of the California Building Code, an automatic sprinkler system installed in accordance with Section 903.3.1.2 shall be allowed in Group R-2.1 occupancies.

An automatic sprinkler system designed in accordance with Section 903.3.1.3 shall not be utilized in Group R-2.1 or R-4 occupancies.

Section 903.3.1.1.1, Exempt Locations, is amended by revising Item 5 as follows:

5. When approved by the fire code official, spaces or areas in telecommunications buildings used exclusively for telecommunications equipment, and associated electrical power distribution equipment, provided those spaces or areas are equipped throughout with an automatic smoke detection system in accordance with Section 907.2 and are separated from the remainder of the building by fire barriers consisting of not less than 1-hour fire barriers constructed in accordance with Section 707 or not less than 2 hour horizontal assemblies constructed in accordance with Section 712, or both.

Section 903.3.5.3, Hydraulically Calculated Systems, is hereby added as follows:

Section 903.3.5.3 Hydraulically calculated systems. The design of hydraulically calculated fire sprinkler systems shall not exceed 90% of the water supply capacity

Exception: When static pressure exceeds 100 psi, and required by the Fire Code Official, the fire sprinkler system shall not exceed water supply capacity specified by Table 903.3.5.3.

TABLE 903.3.5.3

Hydraulically Calculated Systems

[Ord. 2022-231 § 4].

13.02.090 Amendments to Chapter 15 of the California Building Code.

Chapter 15, Roof Assemblies and Rooftop Structures.

Table 1505.1 is amended, by deletion of Table 1501.1 and the addition of a new Table 1505.1 thereto, to read as follows:

TABLE 1505.1a

MINIMUM ROOF COVERING CLASSIFICATIONS

TYPES OF CONSTRUCTION

IA

IB

IIA

IIB

IIIA

IIIB

IV

VA

VB

B

B

B

B

B

B

B

B

B

For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2.

a. Unless otherwise required in accordance with Chapter 7A.

1505.1.3 Roof coverings within all other areas. The entire roof covering of every existing structure where more than 50 percent of the total roof area is replaced within any one-year period, the entire roof covering of every new structure, and any roof covering applied in the alteration, repair or replacement of the roof of every existing structure, shall be a fire-retardant roof covering that is at least Class B.

[Ord. 2022-231 § 4].

13.02.095 Amendment to Chapter 18 of the California Building Code.

Chapter 18, Soils and Foundations.

Section 1807.1.6 is amended to read as follows:

1807.1.6 Prescriptive design of concrete and masonry foundation walls. Concrete and masonry foundation walls that are laterally supported at the top and bottom shall be permitted to be designed and constructed in accordance with this section. Prescriptive design of foundation walls shall not be used for structures assigned to Seismic Design Category D, E or F.

[Ord. 2022-231 § 4].

13.02.100 Amendments to Chapter 31 of the California Building Code.

Chapter 31, Special Construction.

Section 3109, Swimming Pools, Spas and General.

Section 3109.3, Residential swimming pools, is added to the CBC to read:

Residential swimming pools shall be completely enclosed by a barrier complying with Sections 3109.3.1 through 3109.3.3.

3109.3.1 Barrier height and clearances. The top of the barrier must be at least 60 inches above grade measured on the side of the barrier that faces away from the swimming pool. The maximum vertical clearance between grade and the bottom of the barrier must be two inches measured on the side of the barrier that faces away from the swimming pool. Where the top of the pool structure is above grade, the barrier is authorized to be at ground level or mounted on top of the pool structure, at the maximum vertical clearance between the top of the pool structure and the bottom of the barrier must be four inches.

3109.3.1.1 Openings. Openings in the barrier must not allow passage of a 4-inch-diameter sphere.

3109.3.1.2 Solid barrier surfaces. Solid barrier surfaces which do not have openings shall not contain indentations or protrusions except for normal construction tolerances and tooled masonry joints.

3109.3.1.3 Closely spaced horizontal members. Where the barrier is composed of horizontal and vertical members and the distance between the tops of the horizontal members is less than 45 inches, the horizontal members shall be located on the swimming pool side of the fence. Spacing between vertical members shall not be greater than 1 ¾ inches in width. Where there are decorative cutouts within vertical members, spacing with the cutouts shall not be greater than 1 ¾ inches in width.

3109.3.1.4 Widely spaced horizontal members. Where the barrier is composed of horizontal members and the distance between the tops of the horizontal members is 45 inches or more, spacing between vertical members must not be greater than 4 inches. Where there are decorative cutouts within vertical members, spacing must not be greater than 1 ¾ inches in width.

3109.3.1.5 Chain link dimensions. Mesh size for chain link fences must not be greater than 1 ¾ inches in width, unless the fence is provided with slats fastened at the top or bottom that reduce the openings to not more than 1 ¾ in width.

3109.3.1.6 Diagonal members. Where the barrier is composed of diagonal members, the maximum opening formed by the diagonal members should be no more than 1 ¾ inches.

3109.3.1.7 Gates. Access gates must comply with the requirements of Sections 3109.3.1 through 3109.3.1.6 and must be equipped to accommodate a locking device. Pedestrian access gates must open outward away from the pool and must be self-closing and have a self-latching device. Doors or gates other than pedestrian access gates must have a self-latching device and must be equipped with lockable hardware or padlocks and must remain locked at all times when not in use. Release mechanisms must comply with Sections 1010.1.9 and 1109.13. Where release mechanisms of the self-latching device are located less than 60 inches above grade measured on the side of the barrier that faces away from the swimming pool, the release mechanism must be located on the pool side of the gate at least three inches below the top of the gate and the gate barrier may have no opening greater than one-half inch within 18 inches of the release mechanism.

3109.3.1.8 Dwelling wall as a barrier. Where a wall of a dwelling serves as part of the barrier, two safety devices must be provided in accordance with Section 115922 of the California Health and Safety Code.

3109.3.1.9 Pool structure as barrier. Where an above-ground pool structure, and the means of access is a ladder or steps, then the ladder or steps either shall be capable of being secured, locked or removed to prevent access, or the ladder or steps shall be surrounded by a barrier that meets the requirements of Sections 3109.3.1.1 through 3109.3.1.8. Where the ladder or steps are secured, locked or removed, any opening shall not allow the passage of a 4-inch-diameter sphere.

3109.3.2 Indoor swimming pools. Wall surrounding indoor swimming pools shall not be required to comply with Section 3109.3.1.8. through 3109.3.3.

3109.3.3 Prohibited Locations. Barriers shall be located as to prohibit permanent structures, equipment or similar objects from being used to climb the barriers. There shall be a clear zone of not less than 36” between the exterior of the enclosure and any permanent structures or equipment such as pumps, filters and heaters that can be used to climb the enclosure.

[Ord. 2022-231 § 4].

13.02.120 Amendments to the California Residential Code.

Chapter 1, Scope and Application, is amended as follows:

Section R105.5 is amended as follows:

R105.5. Expiration. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced with 12 months after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced. The Building Official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.

Time limitation for permit expiration as the result of code enforcement shall be as per notice of violation or as otherwise determined by the Building Official.

Chapter 2, Definitions, is amended as follows:

Section R202, Definitions, is amended by adding “Barrier,” “OCFA” and “Spark Arrester” as follows:

BARRIER. Barrier is a fence, wall, building wall, or any combination of these that completely surrounds the swimming pool and obstructs access to the swimming pool.

OCFA. Orange County Fire Authority, fire authority having jurisdiction.

SPARK ARRESTER. A listed device constructed of noncombustible material specifically for the purpose of meeting one of the following conditions:

1. Removing and retaining carbon and other flammable particles/debris from the exhaust flow of an internal combustion engine in accordance with California Vehicle Code Section 38366.

2. Fireplaces that burn solid fuel in accordance with California Building Code Chapter 28 combustible vegetation.

Chapter 3, Building Planning, is amended as follows:

Section R301.2, Climatic and Geographic Design Criteria, is amended as follows:

R301.2 Climatic and Geographic Design Criteria, Table R301.2(1) Climatic and Geographic Design Criteria.

TABLE R301.2(1)

CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

GROUND SNOW LOAD

WIND DESIGN

SEISMIC DESIGN CATEGORYf

SUBJECT TO DAMAGE FROM

WINTER DESIGN TEMPe

ICE BARRIER UNDERLAYMENT REQUIREDh

FLOOD HAZARDSg

AIR FREEZING INDEXi

MEAN ANNUAL TEMPj

Speedd (mph)

Topographic effectsk

Weatheringa

Frost line Depthb

Termitec

Zero

110

No

D2 or E

Severe

12-24"

Very Heavy

50

No

04-19-2006

2006-082

0

64

MANUAL J DESIGN CRITERIA
n

ELEVATION

LATITUDE

WINTER HEATING

SUMMER COOLING

ALTITUDE CORRECTION FACTOR

INDOOR DESIGN TEMPERATURE

DESIGN TEMPERATURE COOLING

HEAT TEMPERATURE DIFFERENCE

390

34

41

85

 

70

75

 

COOLING TEMPERATURE DIFFERENCE

WIND VELOCITY HEATING

WIND VELOCITY COOLING

COINCIDENT WET BULB

DAILY RANGE

WINTER HUMIDITY

SUMMER HUMIDITY

7

 

 

68

22

 

11 (50% RH)

For SI: 1 pound per square foot = 0.0479 kPa, 1 mile per hour = 0.447 m/s.

a. Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the structural requirements of this code. The grade of masonry units shall be determined from ASTM C 34, C 55, C 62, C 73, C 90, C 129, C 145, C 216 or C 652.

b. The City of Aliso Viejo does not have any Flood Hazards Zones.

Section R301.9, Fuel Modification Requirements for New Construction, is hereby added as follows:

R301.9 Fuel Modification Requirements for New Construction. All new structures and facilities adjoining land containing hazardous combustible vegetation shall be approved and in accordance with the requirements of OCFA Guideline C-05 “Vegetation Management Guideline – Technical Design for new Construction Fuel Modification Plans and Maintenance Program.”

Section R309.6, Fire sprinkler attached garages, and carports with habitable space above, is hereby amended by modifying the exception to read as follows:

Exception: An automatic residential fire sprinkler system shall not be required when additions or alterations are made to existing carports and/or garages that do not have an automatic fire sprinkler system installed unless a sprinkler system is required in accordance with California Fire Code Section 903.2.8.

Section R313.1, Townhouse automatic fire sprinkler systems, is hereby amended by modifying the exception as follows:

Exception: An automatic residential fire sprinkler system shall not be required when additions or alterations are made to existing townhouses that do not have an automatic fire sprinkler system installed unless a sprinkler system is required in accordance with California Fire Code Section 903.2.8.

Section R313.2, One and two-family dwellings automatic fire sprinkler systems, is hereby amended by modifying the exception as follows:

Exception: An automatic residential fire sprinkler system shall not be required for additions or alterations to existing buildings that are not already provided with an automatic sprinkler system unless a sprinkler system is required in accordance with California Fire Code Section 903.2.8.

Section R313.3.6.2.2, Calculation procedure, is hereby revised as follows:

R313.3.6.2.2 Calculation procedure. Determination of the required size for water distribution piping shall be in accordance with the following procedure and California Fire Code Section 903.3.5.3.

Section R319.1, Address identification, is hereby revised as follows:

R319.1 Address Identification. New and existing buildings shall be provided with approved address identification. The address identification shall be legible and placed in a position that is visible from the street or road fronting the property. Address identification characters shall contrast with their background. Address numbers shall be Arabic numbers or alphabetical letters. Numbers shall not be spelled out. Each character shall be not less than 4 inches in height with a stroke width of not less than 0.5 inch. Where required by the fire code official, address identification shall be provided in additional approved locations to facilitate emergency response. Where access is by means of a private road and the building address cannot be viewed from the public way, a monument, pole or other sign or means shall be used to identify the structure. Address identification shall be maintained.

Section R337.1.3, Application, is hereby revised to read as follows:

R337.1.3 Application. New buildings located in any Fire Hazard Severity Zone or any Wildland-Urban Interface Fire Area designated by the enforcing agency constructed after the application date, and additions to and remodel of buildings constructed before 2012 located in areas currently designated as such, shall comply with the provisions of this chapter. The provisions shall also apply to additions, remodels, and accessory structures located within 100 feet of a fuel modification zone, vegetation management area, or similar area containing hazardous combustible vegetation, regardless of whether the property is currently located in a designated Fire Hazard Severity Zone or Wildland-Urban Interface Area, when materials and/or construction methods for exterior wildfire exposure were previously required at the property by the Building or Fire Code Official.

Exceptions:

1. Buildings of an accessory character classified as a Group U occupancy and not exceeding 120 square feet in floor area, when located at least 30 feet from an applicable building.

2. Buildings of an accessory character classified as a Group U occupancy of any size located at least 50 feet from an applicable building.

3. Buildings classified as a Group U Agricultural Building, as defined in Section 202 of this code (see also Appendix C – Group U Agricultural Buildings), when located at least 50 feet from an applicable building.

Section R337.1.6, Fuel Modification Requirements for New Construction, is hereby added as follows:

R337.1.6 Fuel Modification Requirements for New Construction. All new buildings to be built or installed in hazardous fire areas shall comply with the following:

1. Preliminary fuel modification plans shall be submitted to and approved by the fire code official concurrent with the submittal for approval of any tentative map.

2. Final fuel modification plans shall be submitted to and approved by the fire code official prior to the issuance of a grading permit. The fuel modification plan shall include provisions for the maintenance of the fuel modification for perpetuity.

3. The fuel modification plans shall meet the criteria set forth in the Fuel Modification Section of the Orange County Fire Authority Vegetation Management Guidelines.

4. The fuel modification plan may be altered if conditions change. Any alterations to the fuel modification areas shall have prior approval from the fire code official.

5. All elements of the fuel modification plan shall be maintained in accordance with the approved plan and are subject to the enforcement process outlined in the Fire Code.

Chapter 9, Roof Assemblies, is amended as follows:

Section R902.1 is amended by revising it to allow only class A or B roofs as follows:

R902.1 Roofing covering materials. Roofs shall be covered with materials as set forth in Sections R904 and R905. A minimum Class A or B roofing shall be installed in areas designated by this section. Classes A or B roofing required by this section to be listed shall be tested in accordance with UL 790 or ASTM E 108.

Exceptions:

1. Class A roof assemblies include those with coverings of brick, masonry and exposed concrete roof deck.

2. Class A roof assemblies also include ferrous or copper shingles or sheets, metal sheets and shingles, clay or concrete roof tile, or slate installed on noncombustible decks.

Section R902.1.3 is amended by revising it to require a minimum Class B roof as follows:

R902.1.3 Roof coverings within all other areas. The entire roof covering of every existing structure where more than 50 percent of the total roof area is replaced within any one-year period, the entire roof covering of every new structure, and any roof covering applied in the alteration, repair or replacement of the roof of every existing structure, shall be a fire-retardant roof covering that is at least Class B.

Section R902.2, first paragraph, is amended by revising it to allow only Class A or B treated wood roofs as follows:

R902.2 Fire-retardant-treated shingles and shakes. Fire-retardant-treated wood shakes and shingles are wood shakes and shingles complying with UBC Standard 15-3 or 15-4 which are impregnated by the full-cell vacuum-pressure process with fire-retardant chemicals, and which have been qualified by UBC Standard 15-2 for use on Class A or B roofs.

Chapter 10, Chimneys and Fireplaces, is amended as follows:

Section R1001.13, Outdoor Fireplaces, Fire Pits, Fire Rings, or similar devices, is hereby added as follows:

R1001.13 Outdoor Fireplaces, Fire Pits, Fire Rings, or similar devices. Outdoor fireplaces, fire pits, fire rings, or similar exterior devices shall comply with this section.

Exception: Barbeques, grills, and other portable devices intended solely for cooking.

Section R1001.13.1, Gas-fueled devices, is hereby added as follows:

R1001.13.1 Gas-fueled devices. Outdoor fireplaces, fire pits and similar devices fueled by natural gas or liquefied-petroleum gas are allowed when approved by the Building Department and the device is designed to only burn a gas flame and not wood or other solid fuel. At R-3 occupancies, combustible construction shall not be located within three feet of an atmospheric column that extends vertically from the perimeter of the device. Where a permanent Building Department approved hood and vent is installed, combustible construction may encroach upon this column between the bottom of the hood and the vent opening. Where chimneys or vents are installed, they shall have a spark arrester in accordance with Section R1003.9.2.

Section R1001.13.2, Devices using wood or fuels other than natural gas or liquefied-petroleum gas, is hereby added as follows:

R1001.13.2 Devices using wood or fuels other than natural gas or liquefied-petroleum gas. Fireplaces burning wood or other solid fuel shall be constructed in accordance with Section R1001. Fires in a fireplace shall be contained within a firebox with an attached chimney. The opening in the face of the firebox shall have an installed and maintained method of arresting sparks. The burning of wood or other solid fuel in a device is not allowed within 15 feet of combustible structures, unless within a permanent or portable fireplace.

Section R1001.13.3, Devices using wood or fuels other than natural gas or liquefied-petroleum gas, is hereby added as follows:

R1001.13.3 Where prohibited. The burning of wood and other solid fuels shall not be conducted within a fuel modification zone. Wood and other solid fuel burning fires in devices other than permanent fireplaces are not allowed within Wildfire Risk Areas (WRA) and adopted Fire Hazard Severity Zones (FHSZ) or in locations where conditions could cause the spread of fire to the WRA or FHSZ, unless determined by the Fire Code Official that the location or design of the device should reasonably prevent the start of a wildfire.

[Ord. 2022-231 § 4].

13.02.135 Amendments to the California Electrical Code.

Article 310.106(B), Conductor Material, is amended by the addition of a second paragraph to read as follows:

Copper wire shall be used for wiring No. 6 and smaller in all installations. Consideration for use of aluminum wiring can be made by the Building Official for feeder lines only on an individual basis where adequate safety measures can be ensured.

Article 310, Conductors for General Wiring, is amended by the addition of Article 310.121 to read as follows:

310.121 Continuous inspection of aluminum wiring. Aluminum conductors of No. six (6) or smaller used for branch circuits shall require continuous inspection by an independent testing agency approved by the Building Official for proper torque of connections at their termination point.

[Ord. 2022-231 § 4].

13.02.140 Amendments to the California Plumbing Code.

Section 1014.1.4 is added to read as follows:

Grease interceptors/traps in new construction shall comply with one of the following standards:

1. Laterals must be oversized two pipe diameter increments at the point of connection with the interceptor discharge downstream to the sewer main; or

2. Grease interceptors/traps must connect directly to the sewer main with no additional connections.

Section 1014.1.2, Maintenance, is amended by adding the following paragraph:

In locations where a grease interceptor/trap is present, and the discharge of the interceptor/traps is connected to the building lateral, such laterals must be cleaned on a semi-annual basis by a qualified professional. Verification of such cleaning shall be submitted to the Building Department for approval on an annual basis. Verification shall be in the form of a statement and/or invoice from the person performing the cleaning. Premises that have had an overflow within the last 24 months shall clean the laterals and verify such cleaning as often as deemed necessary by the Building Official.

13.02.150 Building deposits.

A. As a part of any application for, and prior to the issuance of, any building permit such as where damage may occur to public property, the applicant, if required, shall post a cash deposit in an amount established to cover the city’s cost of opening and closing of the necessary files, administration of the permit status, and code enforcement, if necessary. The current deposit amount established for an encroachment permit is $3,000.

1. Any remaining portion of the deposit required by this section shall be returned to the applicant, without interest, upon completion of the work for which the building permit was issued, or upon the request of the applicant if the building permit application is withdrawn prior to commencement of work.

2. The deposit required by this section shall be forfeited entirely, and retained by the city as a penalty, if the applicant fails to comply with any provision of this code as it applies to the work for which the building permit was issued or if the applicant fails to request a refund of the deposit within 30 days of either expiration of the building permit or completion of the work for which the building permit was issued.

3. Nothing in this section shall preclude the city from initiating any enforcement or legal action for violation of any provision of this code.

4. For purposes of this section, “completion of the work” shall mean final inspection approval or issuance of a certificate of occupancy, as applicable. [Ord. 2022-231 § 4].


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Cross-references: nuisances, AVMC 8.24.010; construction and guard offices in residential districts, AVMC 15.14.170; temporary construction yards and offices in nonresidential districts, AVMC 15.22.170.