A. Adoption of California Residential Code, 2022 Edition. Pursuant to California Government Code § 50022.2, the California Residential Code (CRC), 2022 Edition, published at Title 24, Part 2.5, of the California Code of Regulations, and Appendices AH, AI, AJ, AK, AO, AQ, and AX, AZ of the California Residential Code, 2022 Edition, published at Title 24, Part 2.5, of the California Code of Regulations are adopted by reference, subject to the amendments, additions and deletions set forth below. One true copy of the CRC is on file in the office of the Building Official and is available for public inspection as required by law.
B. Amendments to the California Residential Code.
CRC Section R105.1.1 Sandblasting is hereby added as follows:
R105.1.1 Sandblasting. The purpose of this section is to prevent the dust and debris that occurs in sandblasting operations from spreading throughout the neighborhood creating a public health hazard.
R105.1.1.1 Permit Required; Compliance with Regulations.
A. No person shall sandblast or cause to be sandblasted the outside or inside of any building or structure within the City without first paying the fee and obtaining a permit from the Division of Building and Safety and without complying with regulations adopted by the City Council which are reasonable necessary to protect the public health and safety and property from damage which may result from sandblasting.
B. No permit for dry sandblasting shall be issued unless the Building Official determines that extraordinary reasons exist for the use of such a process and that adequate measures will be taken to protect the public health and safety from the effect of such dry sandblasting.
R105.1.1.2 Enforcement.
A. The Building Official shall have the power to revoke without prior notice any sandblasting permit for failure to comply with any such regulations.
B. No person shall do any sandblasting after a permit therefore has been revoked.
Subsection 11 is added to § R105.2 of the CRC as follows:
R105.2 Work exempt from permit.
Building
11. Block wall and concrete fences not over 3 feet 6 inches high.
Section R105.3.1.1 Expedited Streamlined Permitting Process for Small Residential Rooftop Solar Energy Systems is added to the CRC as follows:
R105.3.1.1 Expedited Review Process.Consistent with Cal. Government Code § 65850.5, the Building Official shall implement an expedited administrative permit review process for small rooftop solar energy systems and adopt a checklist of all requirements with which small rooftop solar energy systems shall comply with in order to be eligible for expedited review. The expedited administrative permit review process and checklist shall substantially conform to the recommended process and checklist prescribed by the California Solar Permitting Guidebook as adopted by the Governor's Office of Planning and Research. The city's adopted checklist shall be published on the city's website.
R105.3.1.1.1 Electronic Submittals. Consistent with Cal. Government Code § 65850.5, the Building Official shall allow for electronic submittal of permit applications covered by this chapter and associated supporting documentations. In accepting such permit applications, the Building Official shall also accept electronic signatures on all forms, applications, and other documentation in lieu of a wet signature by any applicant.
R105.3.1.1.2 Association Approval. Consistent with Cal. Government Code § 65850.5, the Building Official shall not condition the approval for any solar energy system permit on the approval of such a system by an association, as that term is defined by Civil Code § 4080.
R105.3.1.1.3 Permit Application Process. A permit application that satisfies the information requirements in the city's adopted checklist shall be deemed complete and be promptly processed. Upon confirmation by the Building Official that the permit application and supporting documents meets the requirements of the city's adopted checklist, and is consistent with all applicable laws, the Building Official shall, consistent with Cal. Government Code § 65850.5, approve the application and issue all necessary permits. Such approval does not authorize an applicant to connect the small residential rooftop energy system to the local utility provider's electricity grid. The applicant is responsible for obtaining such approval or permission from the local utility provider. If the Building Official determines that the permit application is incomplete, he or she shall issue a written correction notice to the applicant, detailing all deficiencies in the application and any additional information required to be eligible for expedited permit issuance.
R105.3.1.1.4 Inspection Requirements. The Building Official shall require only one inspection for small residential rooftop solar energy systems eligible for expedited review as provided by this chapter. Such inspection shall be performed in a timely manner. If the small rooftop solar energy system fails the single inspection, subsequent inspections shall be authorized.
Section R105.3.1.2 Electric Vehicle Charging Stations Permitting is added to the CRC as follows:
R105.3.1.2 Electric Vehicle Charging Stations Permitting
R105.3.1.2.1 Purpose and Intent. The purpose of this chapter is to promote and encourage the use of electric vehicles by creating an expedited, streamlined permitting process for electric vehicle charging stations while promoting public health, safety and welfare and preventing specific adverse impacts in the installation and use of such charging stations. This chapter is also adopted to comply with Cal. Government Code § 65850.7.
R105.3.1.2.2 Definitions. For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ELECTRIC VEHICLE CHARGING STATION or CHARGING STATION. Any level of electric vehicle supply equipment station that is designed and built in compliance with Article 625 of the California Electrical Code, as it reads on the effective date of this Chapter, and delivers electricity from a source outside an electric vehicle into a plug-in electric vehicle.
ELECTRONIC SUBMITTAL. The utilization of one or more of the following:
1. Electronic mail or email.
2. The internet.
3. Facsimile.
SPECIFIC, ADVERSE IMPACT. A significant, quantifiable, direct, and unavoidable impact, based on objective, identified, and written public health or safety standards, policies, or conditions as they existed on the date the application was deemed complete.
R105.3.1.2.3 Expedited Permitting Process. Consistent with Cal. Government Code § 65850.7, the Building Official shall implement an expedited, streamlined permitting process for electric vehicle charging stations, and adopt a checklist of all requirements with which electric vehicle charging stations shall comply with to be eligible for expedited review. The expedited, streamlined permitting process and checklist may refer to the recommendations contained in the most current version of the "Plug-In Electric Vehicle Infrastructure Permitting Checklist" of the "Zero-Emission Vehicles in California: Community Readiness Guidebook" as published by the Governor's Office of Planning and Research. The city's adopted checklist shall be published on the city's website.
R105.3.1.2.4 Permit Application Processing.
A. Prior to submitting an application for processing, the applicant shall verify that the installation of an electric vehicle charging station will not have specific, adverse impact to public health and safety and building occupants. Verification by the applicant includes but is not limited to: electrical system capacity and loads; electrical system wiring, bonding and overcurrent protection; building infrastructure affected by charging station equipment and associated conduits; areas of charging station equipment and vehicle parking.
B. A permit application that satisfies the information requirements in the city's adopted checklist shall be deemed complete and be promptly processed. Upon confirmation by the Building Official that the permit application and supporting documents meets the requirements of the city adopted checklist, and is consistent with all applicable laws and health and safety standards, the Building Official shall, consistent with Cal. Government Code §
C. Consistent with Cal. Government Code § 65850.7, the Building Official shall allow for electronic submittal of permit applications covered by this chapter and associated supporting documentation. In accepting such permit applications, the Building Official shall also accept electronic signatures on all forms, applications, and other documentation in lieu of a wet signature by any applicant.
D. No fee shall be imposed on the applicant for the filing and processing of a permit application for installation of an electric vehicle charging station.
R105.3.1.2.5 Technical Review.
A. It is the intent of this chapter to encourage the installation of electric vehicle charging stations by removing obstacles to permitting for charging stations so long as the action does not supersede the Building Official's authority to address higher priority life-safety situations. If the Building Official makes a finding based on substantial evidence that the electric vehicle charging station could have a specific adverse impact upon the public health or safety, as defined in this chapter, the city may require the applicant to apply for a use permit.
B. In the technical review of a charging station, consistent with Cal. Government Code § 65850.7, the Building Official shall not condition the approval for any electric vehicle charging station permit on the approval of such a system by an association, as that term is defined by Cal. Civil Code § 4080.
R105.3.1.2.6 Electric Vehicle Charging Stations Installation Requirements.
A. Electric vehicle charging station equipment shall meet the requirements of the California Electrical Code, the Society of Automotive Engineers, the National Electrical Manufacturers Association, and accredited testing laboratories such as Underwriters Laboratories, and rules of the Public Utilities Commission or a Municipal Electric Utility Company regarding safety and reliability.
B. Installation of electric vehicle charging stations and associated wiring, bonding, disconnecting means and overcurrent protective devices shall meet the requirements of Article 625 and all applicable provisions of the California Electrical Code.
C. Installation of electric vehicle charging stations shall be incorporated into the load calculations of all new or existing electrical services and shall meet the requirements of the California Electrical Code. Electric vehicle charging equipment shall be considered a continuous load.
D. Anchorage of either floor-mounted or wall-mounted electric vehicle charging stations shall meet the requirements of the California Building or Residential Code as applicable per occupancy, and the provisions of the manufacturer's installation instructions. Mounting of charging stations shall not adversely affect building elements.
Section R105.3.2 of the CRC is hereby amended to read as follows:
R105.3.2 Expiration of Plan Check. An application for a permit for any proposed work is deemed to have been abandoned 12 months after the application date. Unless otherwise provided, after expiration of the application, the city will not issue a permit until the plans are rechecked and approved and a new fee is paid.
Exception: The Building Official may grant extensions of time for additional periods not exceeding 90 days each if a permit applicant submits in writing sufficient evidence that unusual conditions or circumstances precluded the securing of the permit within the allocated time.
Section R105.5 of Chapter 1 of the CRC is hereby amended to read as follows:
R105.5 Expiration of Permits. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 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. Work shall be considered suspended or abandoned if the building official determines that substantial work has not been performed within the time specified above. Substantial work shall be constructed to mean:
1. Measurable work such as, but not limited to, the addition of footings, structural members, flooring, wall covering, etc.
2. The work mentioned in subsection 1 of this Section [A] 105.5 above must constitute 20% of the value of the work for which the permit was issued in any 180 day period for Group R, Division 3 occupancies and 10% for all other occupancies.
Before such work can be recommenced, a new permit shall be first obtained to do so, and the fee therefore shall be one half the amount required for a new permit for such work, provided no changes have been made or will be made in the original plans and specifications for such work, and provided further that such suspension or abandonment has not exceeded one year. In order to renew action on a permit after expiration, the permittee shall pay a new permit fee and may be required to comply with all applicable new regulations at the time of issuance. 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. Except as otherwise provided, every permit issued by the city is valid for a period of three (3) years.
Exception: The Building Official may grant extensions of time if a permit applicant submits in writing sufficient evidence that unusual conditions or circumstances precluded from the work being completed. An extension of time may require conditions of approval and additional fees.
Section R105.8 of Chapter 1 of the CRC is added to read as follows:
R105.8 Responsibility of permittee. Building permits shall be presumed by the city to incorporate all of the work that the applicant, the applicant's agent, employees and/or contractors shall carry out. Said proposed work shall be in accordance with the approved plans and with all requirements of this code and any other laws or regulations applicable thereto. No city approval shall relieve or exonerate any person from the responsibility of complying with the provisions of this code nor shall any vested rights be created for any work performed in violation of this code.
Section R109.5.1 of Chapter 1 of the CRC is added to read as follows:
R108.5.1 Plan check fees refund. No portion of the plan check fee shall be refunded unless plan review has not been performed, in which case 80 percent of the plan check fee shall be refunded upon written application for refund submitted by the person who made original payment of such fee and with the written consent of the owner of the real property on which the work was proposed to be done. The Building Official shall determine, in such official's discretion, whether an applicant is qualified to receive a refund. After 180 days have elapsed from the date of the submittal for plan check, no plan check fees shall be refunded. In the event subsequent application for plan check is made by a person who has received a refund, the full amount of all required fees shall be paid as elsewhere provided in this chapter.
Section R105.5.2 of Chapter 1 of the CRC is added to read as follows:
R108.5.2 Permit fees refund. In the event any person shall have obtained a building permit and no portion of the work or construction covered by such permit shall have commenced, nor any inspection performed by any city employee, and notice of abandonment has been received from the owner of the real property on which such work would have been performed, the permittee, upon presentation to the Building Official of a written request for refund, shall be entitled to a refund in an amount equal to 80% of the building permit fee actually paid for such permit. The Building Official shall determine, in such official's discretion, whether an applicant is qualified to receive a refund. After 180 days have elapsed from the date of the issuance of the permit, no permit fees shall be refunded. In the event subsequent application for a permit is made by a person who has received a refund, the full amount of all required fees shall be paid as elsewhere provided in this chapter.
Exception:
1. If a permit has been issued for a project located in an area outside the jurisdiction of the city, 100% of the permit and plan checking fee may be refunded.
2. If a duplicate permit has been erroneously issued, 100% of the duplicated permit and plan checking fee may be refunded.
Section 108.6 of Chapter 1 of the CRC is amended to read as follows:
R108.6 Work commencing before permit issuance. Any person who commences any work on a building, structure, electrical, gas, mechanical or plumbing system before obtaining the necessary permits shall be subject to a fee in addition to the normally established permit fee, equal to 100% of such normally established permit fee, or as otherwise determined by the Building Official.
Section 110.1.1 of Chapter 1 of the CRC is added to read as follows:
R109.1.7 Setback Certification required. A California State licensed surveyor is required to certify the location of the new construction when it is within 3 feet of a setback line or property line prior to the first foundation inspection. A copy of the certification shall be available to the Building Division inspector for the job file prior to the first inspection.
Exception: Wherever there are practical difficulties involved in carrying out the provisions of this section, the Building Official shall have the authority to grant modifications for individual cases.
Section R109.5 of Chapter 1 of the CRC is hereby added to read as follows:
R109.5 Re-inspections. A re-inspection fee in the amount set by the City Council resolution may be assessed for each inspection or re-inspection when such portion of work for which inspection is called is incomplete or when required corrections called are not made. This section is not to be interpreted as requiring re-inspection fees the first time a job is rejected for failure to comply with the requirements of this code, but as controlling the practice of calling for inspections before the job is ready for such inspection or re-inspection. Re-inspection fees may be assessed when the inspection record card is not posted or otherwise available on the work site, the approved plans are not readily available to the inspector, for failure to provide access on the date for which inspection is requested, or for deviating from plans requiring the approval of the building official. In instances where re-inspection fees have been assessed, no additional inspection of the work will be performed until required fees have been paid.
Section R301.1.3.2 of Chapter 3 of the 2022 CRC is amended to read as follows:
R301.1.3.2 Wood frame structures. The building official shall require construction documents to be approved and stamped by a California licensed architect or engineer for all dwellings of wood frame construction more than two stories and basement in height located in Seismic Design Category A, B or C. Notwithstanding other sections of law; the law establishing these provisions is found in Cal. Business and Professions Code §§ 5537 and 6737.1. The building official shall require construction documents to be approved and stamped by a California licensed architect or engineer for all dwellings of wood frame construction more than one story in height or with a basement located in Seismic Design Category D0, D1, or D2.
Section R301.1.5 is added to Chapter 3 of the CRC to read as follows.
R301.1.5 Seismic design provisions for buildings constructed on or into slopes steeper than one unit vertical in three units horizontal (33.3 percent slope). The design and construction of new buildings and additions to existing buildings when constructed on or into slopes steeper than one unit vertical in three units horizontal (33.3 percent slope) shall comply with Section 1613.6 of the California Building Code.
Items 1, 3 and 5 of Section R301.2.2.6 of the CRC are amended to read as follows.
1. Shear wall or braced wall offsets out of plane. Conditions where exterior shear wall lines or braced wall panels are not in one plane vertically from the foundation to the uppermost story in which they are required.
3. Shear wall or braced wall offsets in plane. Conditions where the end of a braced wall panel occurs over an opening in the wall below.
5. Floor level offset. Conditions where portions of a floor level are vertically offset.
Section R301.2.2.11 is added to Chapter 3 of the CRC to read as follows.
R301.2.2.11 Anchorage of Mechanical, Electrical, or Plumbing Components and Equipment. Mechanical, electrical, or plumbing components and equipment shall be anchored to the structure. Anchorage of the components and equipment shall be designed to resist loads in accordance with the California Residential Code and ASCE 7, except where the component is positively attached to the structure and flexible connections are provided between the component and associated ductwork, piping, and conduit; and either:
1. The component weighs 400 lbs. (1,780 N) or less and has a center of mass located 4 ft. (1.22 m) or less above the supporting structure; or
2. The component weighs 20 lbs. (89N) or less or, in the case of a distributed system, 5 Ib/ft. (73 N/m) or less.
Section R401.1 of the CRC is amended to read as follows:
R401.1 Application. The provisions of this chapter shall control the design and construction of the foundation and foundation spaces for buildings. In addition to the provisions of this chapter, the design and construction of foundations in flood hazard areas as established by Table R301.2(1) shall meet the provisions of Section R322. Wood foundations shall be designed and installed in accordance with AWC PWF.
Exception: The provisions of this chapter shall be permitted to be used for wood foundations only in the following situations:
1. In buildings that have no more than two floors and a roof.
2. When interior basement and foundation walls are constructed at intervals not exceeding 50 feet (15 240 mm).
Wood foundations in Seismic Design Category D0, D1, or D2 shall not be permitted.
Exception: In non-occupied, single-story, detached storage sheds and similar uses other than carport or garage, provided the gross floor area does not exceed 200 square feet, the plate height does not exceed 12 feet in height above the grade plane at any point, and the maximum roof projection does not exceed 24 inches.
Section R401.5 of the 2022 CRC, is hereby added to read as follows:
R401.5 Grading. Grading requirements shall be in compliance with Appendix J of the Amended CBC of this code.
Sections R403.1.2, R403.1.3.6 and R403.1.5 of the CRC are amended to read as follows:
R403.1.2 Continuous footing in Seismic Design Categories D0, D1 and D2. Exterior walls of buildings located in Seismic Design Categories D0, D1 and D2 shall be supported by continuous solid or fully grouted masonry or concrete footings. All required interior braced wall panels in buildings located in Seismic Design Categories D0, D1 and D2 shall be supported on continuous foundations.
R403.1.3.6 Isolated concrete footings. In detached one- and two-family dwellings located in Seismic Design Category A, B, or C, that are three stories or less in height and constructed with stud bearing walls, isolated plain concrete footings supporting columns or pedestals are permitted.
R403.1.5 Slope. The top surface of footings shall be level. The bottom surface of footings shall not have a slope exceeding one unit vertical in 10 units horizontal (10% slope). Footings shall be stepped where it is necessary to change the elevation of the top surface of the footings or where the slope of the bottom surface of the footings will exceed one unit vertical in 10 units horizontal (10% slope).
For structures assigned to Seismic Design Categories D0, D1 or D2, stepped footings shall be reinforced with four No. 4 rebar. Two bars shall be place at the top and bottom of the footings as shown in Figure R403.1.5.
Section R404.2 of the CRC is amended to read as follows.
R404.2 Wood foundation walls. Wood foundation walls shall be constructed in accordance with the provisions of Sections R404.2.1 through R404.2.6 and with the details shown in Figures R403.1(2) and R403.1(3). Wood foundation walls shall not be used for structures located in Seismic Design Category D0, D1 or D2.
Section R501.1 of the CRC is amended to read as follows:
R501.1 Application. The provisions of this chapter shall control the design and construction of the floors for buildings, including the floors of attic spaces used to house mechanical or plumbing fixtures and equipment. Mechanical or plumbing fixtures and equipment shall be attached (or anchored) to the structure in accordance with Section R301.2.2.11.
Section R503.2.4 is added to Chapter 5 of the CRC to read as follows:
R503.2.4 Openings in horizontal diaphragms. Openings in horizontal diaphragms with a dimension perpendicular to the joist that is greater than 4 feet (1.2 m) shall be constructed in accordance with Figure R503.2.4.
Lines 20, 21, 24, and 34 - 37 of Table R602.3(1) of the 2022 CRC are amended to read as follows:
TABLE R602.3(1) - continued FASTENING
SCHEDULE
ITEM | DESCRIPTION OF BUILDING ELEMENTS | NUMBER AND TYPE OF FASTENERa, b, c | SPACING AND LOCATION | |
20k | 1" x 6" sheathing to each bearing | 3-8d box (2½" x 0.113"); or 2-8d common (2½" x 0.131"); or 2-10d box (3" x 0.128"; or 2 staples, 1" crown, 16 ga., 1¾" long | Face nail | |
21k | 1" x 8" and wider sheathing to each bearing | 3-8d box (2½" x 0.113"); or 3-8d common (2½" x 0.131"); or 3-10d box (3" x 0.128"; or 3 staples, 1" crown, 16 ga., 1¾" long | Face nail | |
Wider than 1" x 8" 4-8d box (2½" x 0.131"); or 3-10d box (3" x 0.128"); or 4 staples, 1" crown, 16 ga., 1¾" long | ||||
Floor | ||||
24k | 1" x 6" subfloor or less to each joist | 3-8d box (2½" x 0.113"); or 2-8d common (2½" x 0.131"); or 3-10d box (3" x 0.128"; or 2 staples, 1" crown, 16 ga., 1¾" long | Face nail | |
Other wall sheathing | ||||
34k | ½" structural cellulosic fiberboard sheathing | 1½" galvanized roofing nail, 7/16" head diameter, or 1¼" long 16 ga. staple with 7/16" or 1" crown | 3 | 6 |
35k | 25/32" structural cellulosic fiberboard sheathing | 1¾" galvanized roofing nail, 7/16" head diameter, or 1½" long 16 ga. staple with 7/16" or 1" crown | 3 | 6 |
36k | ½" gypsum sheathingd | 1½" galvanized roofing nail; staple galvanize, 1½" long; 1¼" screws, Type W or S | 7 | 7 |
37k | " gypsum sheathingd | 1¾" galvanized roofing nail; staple galvanize, 1" long; 1" screws, Type W or S | 7 | 7 |
For SI: 1 inch - 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s; 1 ksi = 6.895 MPa.
TABLE R602.3(1)- FASTENING SCHEDULE
a. Nails are smooth-common, box or deformed shanks except where otherwise stated. Nails used for framing and sheathing connections shall have minimum average bending yield strengths as shown: 80 ksi for shank diameter of 0.192 inch (20d common nail), 90 ksi for shank diameters larger than 0.142 inch but not larger than 0.177 inch, and 100 ksi for shank diameters of 0.142 inch or less.
b. Staples are 16 gage wire and have a minimum 7/16-inch on diameter crown width.
c. Nails shall be spaced at not more than 6 inches on center at all supports where spans are 48 inches or greater.
d. Four-foot by 8-foot or 4-foot by 9-foot panels shall be applied vertically.
e. Spacing of fasteners not included in this table shall be based on Table R602.3(2).
f. For wood structural panel roof sheathing attached to gable end roof framing and to intermediate supports within 48 inches of roof edges and ridges, nails shall be spaced at 6 inches on center where the ultimate design wind speed is less than 130 mph and shall be spaced 4 inches on center where the ultimate design wind speed is 130 mph or greater but less than 140 mph.
g. Gypsum sheathing shall conform to ASTM C1396 and shall be installed in accordance with GA 253. Fiberboard sheathing shall conform to ASTM C208.
h. Spacing of fasteners on floor sheathing panel edges applies to panel edges supported by framing members and required blocking and at floor perimeters only. Spacing of fasteners on roof sheathing panel edges applies to panel edges supported by framing members and required blocking. Blocking of roof or floor sheathing panel edges perpendicular to the framing members need not be provided except as required by other provisions of this code. Floor perimeter shall be supported by framing members or solid blocking.
i. Where a rafter is fastened to an adjacent parallel ceiling joist in accordance with this schedule, provide two toe nails on one side of the rafter and toe nails from the ceiling joist to top plate in accordance with this schedule. The toe nail on the opposite side of the rafter shall not be required.
j. RSRS-01 is a Roof Sheathing Ring Shank nail meeting the specifications in ASTM F1667.
k. Use of staples in braced wall panels shall be prohibited in Seismic Design Category D0, D1, or D2.
Exception of Section R602.3.2 and Table R602.3.2 of the 2022 Edition of the CRC is amended to read as follows:
Table R602.3.2
Exception: In other than Seismic Design Category D0, D1 or D2, a single top plate used as an alternative to a double top plate shall comply with the following:
1. The single top plate shall be tied at corners, intersecting walls, and at in-line splices in straight wall lines in accordance with Table R602.3.2.
2. The rafters or joists shall be centered over the studs with a tolerance of not more than 1 inch (25 mm).
3. Omission of the top plate is permitted over headers where the headers are adequately tied to adjacent wall sections in accordance with Table R602.3.2.
Footnote "b" of Table R602.3(2) of the CRC is amended to read as follows:
Table R602.3(2)
b. Staples shall have a minimum crown width of 7/16-inch on diameter except as noted. Use of staples in roof, floor, subfloor, and braced wall panels shall be prohibited in Seismic Design Category D0, D1, or D2.
Section R602.10.2.3 of the 2022 CRC is amended to read as follows:
R602.10.2.3 Minimum number of braced wall panels. Braced wall lines with a length of 16 feet (4877 mm) or less shall have a minimum of two braced wall panels of any length or one braced wall panel equal to 48 inches (1219 mm) or more. Braced wall lines greater than 16 feet (4877 mm) shall have a minimum of two braced wall panels. No braced wall panel shall be less than 48 inches in length in Seismic Design Category D0, D1, or D2.
Table R602.10.3(3) of the CRC is amended to read as follows:
Table R602.10.4 of the CRC is amended to read as follows:
Table R602.10.5 of the CRC is amended to read as follows:
Figure R602.10.6.1 of the CRC is amended to read as follows:
Figure R602.10.6.2 of the CRC is amended to read as follows:
Figure R602.10.6.4 of the CRC is amended to read as follows:
Section R606.4.4 of the CRC is amended to read as follows:
R606.4.4 Parapet walls. Unreinforced solid masonry parapet walls shall not be less than 8 inches (203 mm) thick and their height shall not exceed four times their thickness. Unreinforced hollow unit masonry parapet walls shall be not less than 8 inches (203 mm) thick, and their height shall not exceed three times their thickness. Masonry parapet walls in areas subject to wind loads of 30 pounds per square foot (1.44 kPa) or located in Seismic Design Category D0, D1 or D2, or on townhouses in Seismic Design Category C shall be reinforced in accordance with Section R606.12.
Section R606.12.2.2.3 of the CRC is amended to read as follows:
R606.12.2.2.3 Reinforcement requirements for masonry elements. Masonry elements listed in Section R606.12.2.2.2 shall be reinforced in either the horizontal or vertical direction as shown in Figure R606.11(2) and in accordance with the following:
1. Horizontal reinforcement. Horizontal joint reinforcement shall consist of at least one No. 4 bar spaced not more than 48 inches (1219 mm). Horizontal reinforcement shall be provided within 16 inches (406 mm) of the top and bottom of these masonry elements.
2. Vertical reinforcement. Vertical reinforcement shall consist of at least one No. 4 bar spaced not more than 48 inches (1219 mm). Vertical reinforcement shall be within 8 inches (203 mm) of the ends of masonry walls.
Section R803.2.4 is added to Chapter 8 of the CRC to read as follows:
R803.2.4 Openings in horizontal diaphragms. Openings in horizontal diaphragms shall conform with Section R503.2.4.
Section R905.3.1 of the 2022 Edition of the CRC is amended to read as follows:
R905.3.1 Deck requirements. Concrete and clay tile shall be installed only over solid sheathing.
Exception: Spaced lumber shall be permitted in Seismic Design Categories A, B, and C.
Section R1001.3.1 of the CRC is amended to read as follows:
R1001.3.1 Vertical reinforcing. For chimneys up to 40 inches (1016 mm) wide, four No. 4 continuous vertical bars adequately anchored into the concrete foundation shall be placed between wythes of solid masonry or within the cells of hollow unit masonry and grouted in accordance with Section R606. Grout shall be prevented from bonding with the flue liner so that the flue liner is free to move with thermal expansion. For chimneys more than 40 inches (1016 mm) wide, two additional No. 4 vertical bars adequately anchored into the concrete foundation shall be provided for each additional flue incorporated into the chimney or for each additional 40 inches (1016 mm) in width or fraction thereof.
(Ord. No. 2016-012 § 2 (part); Ord. No. 2019-015 § 5; Ord. No. 2022-007 § 5)