General requirements & loads

Grounded in the retrieved California Residential Code — click a citation to read the verbatim passage:

• CRC § 2.5 Medium relevance — show source text

  R507.2.5 Alternate materials. Alternative materials, including glass and metals, shall be permitted.

  R507.3 Footings. Decks shall be supported on concrete footings or other approved structural systems designed to accommodate all loads in accordance with Section R301. Deck footings shall be sized to carry the imposed loads from the deck structure to the ground as shown in Figure R507.3.

  Exceptions:

  1. Footings shall not be required for free-standing decks consisting of joists directly supported on grade over their entire length.
  2. Footings shall not be required for free-standing decks that meet all of the following criteria: 2.1. The joists bear directly on precast concrete pier blocks at grade without support by beams or posts. 2.2. The area of the deck does not exceed 200 square feet (18.6 m [2] ). 2.3. The walking surface is not more than 20 inches (508 mm) above grade at any point within 36 inches (914 mm) measured horizontally from the edge.

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  FLOORS

  FIGURE R507.3—DECK POSTS TO DECK FOOTING CONNECTION

  MANUFACTURED POST CONNECTOR

  4″ GRAVEL

  NOTE:

  POSTS MUST BE CENTERED ON OR IN FOOTING For SI: 1 inch = 25.4 mm. R507.3.1 Minimum size. The minimum size of deck footings shall be in accordance with Table R507.3.1, based on the tributary area and allowable soil-bearing pressure in accordance with Table R401.4.1(1).	Col2	Col3	Col4	Col5	Col6	Col7	Col8	Col9	Col10	Col11
  TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS	TABLE R507.3.1—MINIMUM FOOTING SIZE FOR DECKS
  LIVE OR GROUND SNOW LOADb (psf)	TRIBUTARY AREAe (ft2)	LOAD-BEARING VALUE OF SOILSa, c, d (psf)	LOAD-BEARING VALUE OF SOILSa, c, d (psf)	LOAD-BEARING VALUE OF SOILS**_a, c,

• CRC § 3.4.2 Medium relevance — show source text

  Add 5 gpm to the flow rate required by Section_R309.3.4.2_ where the water service pipe supplies more than one dwelling.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gallon per minute = 0.063 L/s, 1 pound per square inch = 6.895 kPa.
  NP = Not Permitted. Pressure loss exceeds reasonable limits.
  a. Values are applicable for underground piping materials listed in_ the California Plumbing Code_ and are based on an SDR of 11 and a Hazen Williams C Factor of 150.
  b. Values include the following length allowances for fittings: 25-percent length increase for actual lengths up to 100 feet and 15-percent length increase for actual lengths over
  100 feet.
  c. Flow rate from Section P2904.4.2. Add 5 gpm to the flow rate required by Section_R309.3.4.2_ where the water service pipe supplies more than one dwelling.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gallon per minute = 0.063 L/s, 1 pound per square inch = 6.895 kPa.
  NP = Not Permitted. Pressure loss exceeds reasonable limits.
  a. Values are applicable for underground piping materials listed in_ the California Plumbing Code_ and are based on an SDR of 11 and a Hazen Williams C Factor of 150.
  b. Values include the following length allowances for fittings: 25-percent length increase for actual lengths up to 100 feet and 15-percent length increase for actual lengths over
  100 feet.
  c. Flow rate from Section P2904.4.2. Add 5 gpm to the flow rate required by Section_R309.3.4.2_ where the water service pipe supplies more than one dwelling.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gallon per minute = 0.063 L/s, 1 pound per square inch = 6.895 kPa.
  NP = Not Permitted. Pressure loss exceeds reasonable limits.
  a. Values are applicable for underground piping materials listed in_ the California Plumbing Code_ and are based on an SDR of 11 and a Hazen Williams C Factor of 150.
  b. Values include the following length allowances for fittings: 25-percent length increase for actual lengths up to 100 feet and 15-percent length increase for actual lengths over
  100 feet.
  c. Flow rate from Section P2904.4.2. Add 5 gpm to the flow rate required by Section_R309.3.4.2_ where the water service pipe supplies more than one dwelling.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gallon per minute = 0.063 L/s, 1 pound per square inch = 6.895 kPa.
  NP = Not Permitted. Pressure loss exceeds reasonable limits.
  a. Values are applicable for underground piping materials listed in_ the California Plumbing Code_ and are based on an SDR of 11 and a Hazen Williams C Factor of 150.
  b. Values include the following length allowances for fittings: 25-percent length increase for actual lengths up to 100 feet and 15-percent length increase for actual lengths over
  100 feet.
  c. Flow rate from Section P2904.4.2.

• CRC § 2.3.1 Medium relevance — show source text

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  Concrete Capillary break R506.2.3.1 Compressive strength R402.2 Floors (on ground) R506 Tile (roof) R905.3 Weathering Figure R301.2(1), R402.2 Construction

  3D-printed Appendix BM Cavity wall masonry R608 Cob Appendix BK Extended plate walls Appendix BN Flood-resistant R306

  Floors Chapter 5 Footings R403 Foundation material R402

  Foundation walls R404

  Foundations Chapter 4 Hemp-lime Appendix BL Masonry R606, R607, R608, R610 Pollutant control R340 Roofs Chapter 8 Steel framing R505, R603, R804 Strawbale Appendix BJ Straw-clay Appendix BI Walls Chapter 6 Waste R334.1 Wood framing R502, R602, R802 Construction Documents R106, R306.3.9

  Court Emergency escape and rescue openings R319.1, R319.2.4 Means of egress R318.1 Natural light R325.1.1 Covering Exterior R703

  Interior R702 Roof Chapter 9 Wall Chapter 7 Crawl Space R408

  Access R408.4

  Damper Fireplace R1001.7.1 Dampproofing R406 Day Care Appendix BD Defined R202 Large family day-care homes R336 Dead Loads R301.4

  Decay Protection against R304 Deck

  Attachment R318.5 Supported by exterior wall R507 Wood/plastic composite boards R507.2.2

  Definitions Building R202 Mechanical system R202 Plumbing R202 Design Criteria R301 Alternative provisions R301.1.1 Application R301.1 Climatic and geographic R301.2 Dead load R301.4

  Deflection R301.6 Engineered design R301.1.3

  Accessibility R322 Accessory Dwelling Unit R202 Authority to Enforce Automatic Fire Sprinkler Systems 1.8.9.1, R313.2 Accessory Structure Elevations R306.3.2

  Energy R330.5 Exterior walls R302.1

  Scope R101.2 Addition (see also Existing Buildings) Carbon monoxide alarms R311.2.2 Change of occupancy R110.1 Construction R302.2.3

• CRC § 3-3 Medium relevance — show source text

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  Part III— Building Planning and Construction

  3 BUILDING PLANNING

  User notes:

  About this chapter: Chapter 3 contains a wide array of building planning requirements that are critical to designing a safe and usable building. This includes, but is not limited to, requirements related to general structural design, fire-resistant construction, light, ventilation, sanitation, plumbing fixture clearances, minimum room area and ceiling height, safety glazing, means of egress, automatic fire sprinkler systems, smoke and carbon monoxide alarm systems, accessibility and solar energy systems.

  SECTION R300—SITE DRAINAGE

  R300.1 Storm water drainage and retention during construction. Projects which disturb less than one acre of soil and are not part of a larger common plan of development which in total disturbs one acre or more, shall manage storm water drainage during construction in accordance with the California Green Building Standards Code, Chapter 4, Division 4.1.

  R300.2 Grading and paving. Construction plans shall indicate how the site grading or drainage system will manage all surface water flows to keep water from entering buildings in accordance with the California Green Building Standards Code, Chapter 4, Division 4.1.

  SECTION R301—DESIGN CRITERIA

  R301.1 Application. Buildings and structures, and parts thereof, shall be constructed to safely support all loads, including dead loads, live loads, roof loads, flood loads, snow loads, wind loads and seismic loads as prescribed by this code. The construction of buildings and structures in accordance with the provisions of this code shall result in a system that provides a complete load path that meets the requirements for the transfer of loads from their point of origin through the load-resisting elements to the foundation. Buildings and structures constructed as prescribed by this code are deemed to comply with the requirements of this section.

  Existing buildings housing existing protective social care homes or facilities established prior to 1972 (see Chapter 11 of the California Fire Code and the California Existing Building Code).

  R301.1.1 Alternative provisions. As an alternative to the requirements in Section R301.1, the following standards are permitted subject to the limitations of this code and the limitations therein. Where engineered design is used in conjunction with these standards, the design shall comply with the California Building Code .

  1. AWC Wood Frame Construction Manual (WFCM).
  2. AISI Standard for Cold-Formed Steel Framing—Prescriptive Method for One- and Two-Family Dwellings (AISI S230).
  3. ICC Standard on the Design and Construction of Log Structures (ICC 400).

  R301.1.1.1 Alternative provisions for limited-density owner-built rural dwellings. The purpose of this subsection is to permit alternatives that provide minimum protection of life, limb, health, property, safety and welfare of the general public and the owners and occupants of limited-density owner-built rural dwellings as defined in Chapter 2 of this code. For additional informa- tion see Chapter 1, Subchapter 1, Article 8, of Title 25, California Code of Regulations, commencing with Section 74.

• CRC § 1.1 Medium relevance — show source text

  1.1 Note||||X|||||||||||||||||||| |R802.10.2||||X|||||||||||||||||||| |R803.2.1.2|||X||||||||||||||||||||| |R806 Note||||||||||||||||||||X|||| |R806.1.1|||X|X|||||||||||||||||||| |R807.1||||X||||||||||||||||||||

  The state agency does not adopt sections identified with the following symbol: †

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  8 ROOF-CEILING CONSTRUCTION

  User notes:

  About this chapter: Chapter 8 addresses the design and construction of roof-ceiling systems. This chapter contains two roof-ceiling framing systems: wood framing and cold-formed steel framing. Allowable span tables are provided to simplify the selection of rafter and ceiling joist size for wood roof framing and cold-formed steel framing. Chapter 8 also provides requirements for the application of ceiling finishes, the proper ventilation of concealed spaces in roofs (for example, enclosed attics and rafter spaces), unvented attic assemblies and attic access.

  SECTION R801—GENERAL

  R801.1 Application. The provisions of this chapter shall control the design and construction of the roof-ceiling system for buildings.

  R801.2 Requirements. Roof and ceiling construction shall be capable of accommodating all loads imposed in accordance with Section R301 and of transmitting the resulting loads to the supporting structural elements.

  R801.3 Roof drainage. In areas where expansive soils or collapsible soils are known to exist, all dwellings and townhouses shall have a controlled method of water disposal from roofs that will collect and discharge roof drainage to the ground surface not less than 5 feet (1524 mm) from foundation walls or to an approved drainage system.

  SECTION R802—WOOD ROOF FRAMING

  R802.1 General. Wood and wood-based products used for load-supporting purposes shall conform to the applicable provisions of this section.

  R802.1.1 Sawn lumber. Sawn lumber shall be identified by a grade mark of an accredited lumber grading or inspection agency and have design values certified by an accreditation body that complies with DOC PS 20. In lieu of a grade mark, a certificate of inspection issued by a lumber grading or inspection agency meeting the requirements of this section shall be accepted.

  Note: See Section R301.1.1.1 for limited-density owner- built rural dwellings.

  R802.1.1.1 End-jointed lumber. Approved end-jointed lumber identified by a grade mark conforming to Section R802.1.1 shall be permitted to be used interchangeably with solid-sawn members of the same species and grade. End-jointed lumber used in an assembly required elsewhere in this code to have a fire-resistance rating shall have the designation “Heat-Resistant Adhesive” or “HRA” included in its grade mark.

  R802.1.2 Structural glued-laminated timbers. Glued-laminated timbers shall be manufactured and identified as required in ANSI A190.1, ANSI 117 and ASTM D3737.

  R802.1.3 Structural log members. Structural log members shall comply with the provisions of ICC 400.

• CRC § 0.125 Medium relevance — show source text

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  APPENDIX BF-2 2025 CALIFORNIA RESIDENTIAL CODE

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  BF PATIO COVERS

  The provisions contained in this appendix are not mandatory unless specifically adopted by a state agency or referenced in the adopting ordinance.

  User notes:

  About this appendix: Appendix BF relaxes certain provisions contained in the body of the code as related to patio covers, including those regarding: permitted uses; exterior wall insect screens; glazing and translucent or transparent plastic; light, ventilation and emergency egress; height; structural design loads; and footings. This appendix also includes provisions that are specifically applicable to hurricane-prone regions.

  SECTION BF101—GENERAL

  BF101.1 Scope. Patio covers shall conform to the requirements of Sections BF101 through BF106.

  BF101.2 Permitted uses. Patio covers detached from or attached to dwelling units shall be used only for recreational, outdoor living purposes, and not as carports, garages, storage rooms or habitable rooms.

  SECTION BF102—DEFINITION

  BF102.1 General. The following word and term shall, for the purposes of this appendix, have the meaning shown herein.

  PATIO COVER. A structure with open or glazed walls that is used for recreational, outdoor living purposes associated with a dwelling unit.

  SECTION BF103—EXTERIOR WALLS AND OPENINGS

  BF103.1 Enclosure walls. Enclosure walls shall be permitted to be of any configuration, provided that the open or glazed area of the longer wall and one additional wall is not less than 65 percent of the area below 6 feet 8 inches (2032 mm) of each wall, measured from the floor. Openings shall be enclosed with any of the following:

  1. Insect screening.
  2. Approved translucent or transparent plastic not more than 0.125 inch (3.2 mm) in thickness.
  3. Glass conforming to the provisions of Section R324.
  4. Any combination of the foregoing.

  BF103.2 Light, ventilation and emergency egress. Exterior openings required for light and ventilation into a patio structure conforming to Section BF101 shall be unenclosed where such openings serve as emergency egress or rescue openings from sleeping rooms. Where such exterior openings serve as an exit from the dwelling unit, the patio structure, unless unenclosed, shall be provided with exits conforming to the provisions of Section R318.

  SECTION BF104—HEIGHT

  BF104.1 Height. Patio covers are limited to one-story structures not exceeding 12 feet (3657 mm) in height.

  SECTION BF105—STRUCTURAL PROVISIONS

  BF105.1 Design loads. Patio covers shall be designed and constructed to sustain, within the stress limits of this code, all dead loads plus a vertical live load of not less than 10 pounds per square foot (0.48 kN/m [2] ), except that snow loads shall be used where such snow loads exceed this minimum. Such covers shall be designed to resist the minimum wind loads set forth in Section R301.2.1.

• CRC § 4.00 Medium relevance — show source text

  10 screw
  into 33-mil steel|6|4.00|3.50|3.05|2.70|1.95|4.00|2.90|2.20|1.70|0.55| |Steel framing
  (minimum penetration
  of steel thickness + 3
  threads)|No. 10 screw
  into 33-mil steel|8|4.00|3.10|2.50|2.05|1.00|4.00|2.25|1.35|0.70|DR| |Steel framing
  (minimum penetration
  of steel thickness + 3
  threads)|No. 10 screw
  into 33-mil steel|12|4.00|2.25|1.35|0.70|DR|3.70|1.05|DR|DR|DR| |Steel framing
  (minimum penetration
  of steel thickness + 3
  threads)|No. 10 screw
  into 43-mil steel or
  thicker|6|4.00|4.00|4.00|4.00|3.60|4.00|4.00|3.80|3.45|2.70| |Steel framing
  (minimum penetration
  of steel thickness + 3
  threads)|No. 10 screw
  into 43-mil steel or
  thicker|8|4.00|4.00|4.00|3.70|3.00|4.00|3.85|3.25|2.80|1.80| |Steel framing
  (minimum penetration
  of steel thickness + 3
  threads)|No. 10 screw
  into 43-mil steel or
  thicker|12|4.00|3.85|3.25|2.80|1.80|4.00|3.05|2.15|1.50|DR| |For SI: 1 inch = 25.4 mm, 1 mil = 0.0254 mm, 1 pound per square foot = 0.0479 kPa, 1 pound per square inch = 6.895 kPa.
  DR = Design Required.
  o.c. = On Center.
  a. Steel framing shall be minimum 33-ksi steel for 33-mil and 43-mil steel, and 50-ksi steel for 54-mil steel or thicker.
  b. Where cladding is attached to wood structural panel sheathing only, fastening requirements shall be in accordance with Table R703.3.3. For brick veneer tie connections to
  wood structural panels, refer to Table R703.8.4(2).
  c. Screws shall comply with the requirements of ASTM C1513.
  d. Foam sheathing shall have a minimum compressive strength of 15 psi in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 mil = 0.0254 mm, 1 pound per square foot = 0.0479 kPa, 1 pound per square inch = 6.895 kPa.
  DR = Design Required.
  o.c. = On Center.
  a. Steel framing shall be minimum 33-ksi steel for 33-mil and 43-mil steel, and 50-ksi steel for 54-mil steel or thicker.
  b. Where cladding is attached to wood structural panel sheathing only, fastening requirements shall be in accordance with Table R703.3.3.

• CRC § 2.4 Medium relevance — show source text

  Court Emergency escape and rescue openings R319.1, R319.2.4 Means of egress R318.1 Natural light R325.1.1 Covering Exterior R703

  Interior R702 Roof Chapter 9 Wall Chapter 7 Crawl Space R408

  Access R408.4

  Damper Fireplace R1001.7.1 Dampproofing R406 Day Care Appendix BD Defined R202 Large family day-care homes R336 Dead Loads R301.4

  Decay Protection against R304 Deck

  Attachment R318.5 Supported by exterior wall R507 Wood/plastic composite boards R507.2.2

  Definitions Building R202 Mechanical system R202 Plumbing R202 Design Criteria R301 Alternative provisions R301.1.1 Application R301.1 Climatic and geographic R301.2 Dead load R301.4

  Deflection R301.6 Engineered design R301.1.3

  Accessibility R322 Accessory Dwelling Unit R202 Authority to Enforce Automatic Fire Sprinkler Systems 1.8.9.1, R313.2 Accessory Structure Elevations R306.3.2

  Energy R330.5 Exterior walls R302.1

  Scope R101.2 Addition (see also Existing Buildings) Carbon monoxide alarms R311.2.2 Change of occupancy R110.1 Construction R302.2.3

  Frost protection R403.1.4.1 Scope R101.2, R102.6.1 Smoke alarms R310.2.2 Address (Site) R308 Administration, California Chapter 1, Division 1

  General 1.1 Dept. of Housing and Community Development 1.8 Office of the State Fire Marshal 1.11 Administration, Division II Chapter 1 Applicability R102 Certificate of occupancy R110 Construction documents R106 Department of building safety R103 Duties and Powers R104

  Fees R106

  Inspections R109 Means of appeals R112 Permits R105, R105.5.1 Purpose R101.3 Service utilities R111 Stop work order R114 Temporary structures and uses R107 Violations R113 Aging-in-place Design and Fall Prevention R327

  Doorbell buttons R327.1.4 Electrical receptacle outlet, switch and control heights R327.1.2 Interior doors R327.1.3 Reinforcement for grab bars R327.1.1 Allowable Spans Of floor joists R502.3, R505.3.2 Of headers R602.7, R603.6 Of rafters and ceiling joists R802.4, R802.5, R804.3.1, R804.3.2 Alternate Materials (see Materials) R104.11 Alterations (see Existing Buildings) Anchor Bolts R403.1.6

  Appeal Board of 1.8.8, Appendix AA Means of 1.8.8, R112 Appliance Flue area R1003.14

• CRC § 19.1 Medium relevance — show source text

  2. Structural reinforcing steel shall meet the requirements of ASTM A615, A706M or A996M. The minimum yield strength of reinforcing steel shall be 40,000 psi (Grade 40) (276 MPa). Steel reinforcement for precast concrete foundation walls shall have a minimum concrete cover of [3] / 4 inch (19.1 mm).

  3. Panel-to-panel connections shall be made with Grade II steel fasteners.

  4. The use of nonstructural fibers shall conform to ASTM C1116.

  5. Grout used for bedding precast foundations placed on concrete footings shall meet ASTM C1107.

  R402.4 Masonry. Masonry systems shall be designed and installed in accordance with this chapter and shall have a minimum specified compressive strength of 1,500 psi (10.3 MPa).

  SECTION R403—FOOTINGS

  R403.1 General. All exterior walls shall be supported on continuous solid or fully grouted masonry or concrete footings, crushed stone footings, wood foundations, or other approved structural systems that shall be of sufficient design to accommodate all loads according to Section R301 and to transmit the resulting loads to the soil within the limitations as determined from the character of the soil. Footings shall be supported on undisturbed natural soils or engineered fill. Concrete footing shall be designed and constructed in accordance with the provisions of Section R403 or in accordance with ACI 332.

  TABLE R403.1(1)—MINIMUM WIDTH AND THICKNESS FOR CONCRETE FOOTINGS FOR LIGHT-FRAME CONSTRUCTION (inches)a, b, c, d	Col2	Col3	Col4	Col5	Col6	Col7	Col8
  ** GROUND SNOW LOAD** OR ROOF LIVE LOAD	** STORY AND TYPE OF** STRUCTURE WITH LIGHT FRAME	** LOAD-BEARING VALUE OF SOIL (psf)**	** LOAD-BEARING VALUE OF SOIL (psf)**	** LOAD-BEARING VALUE OF SOIL (psf)**	** LOAD-BEARING VALUE OF SOIL (psf)**	** LOAD-BEARING VALUE OF SOIL (psf)**	** LOAD-BEARING VALUE OF SOIL (psf)**
  ** GROUND SNOW LOAD** OR ROOF LIVE LOAD	** STORY AND TYPE OF** STRUCTURE WITH LIGHT FRAME	** 1,500**	** 2,000**	** 2,500**	** 3,000**	** 3,500**	** 4,000**
  20 psf roof live load or 25 psf ground snow load	1 story—slab-on-grade	12 × 6	12 × 6	12 × 6	12 × 6	12 × 6	12 × 6
  20 psf roof live load or 25 psf ground snow load	1 story—with crawl space	12 × 6	12 × 6	12 × 6	12 × 6	12 × 6	12 × 6
  20 psf roof live load or 25 psf ground snow load	1 story—plus basement	16 × 6	12 × 6	12 × 6	12 × 6	12 × 6	12 × 6
  20 psf roof live load or 25 psf ground snow load	2 story—slab-on-grade	13 × 6	12 ×

• CRC § 3-22 Medium relevance — show source text

  Guard in-fill components (all those except the handrail), balusters and panel fillers shall be designed to withstand a horizontally applied normal load of 50 pounds on an area
  equal to 1 square foot. This load need not be assumed to act concurrently with any other live load requirement.
  g. Uninhabitable attics with limited storage are those where the clear height between joists and rafters is 42 inches or greater, or where there are two or more adjacent trusses
  with web configurations capable of accommodating an assumed rectangle 42 inches in height by 24 inches in width, or greater, within the plane of the trusses.
  The live load need only be applied to those portions of the joists or truss bottom chords where all of the following conditions are met:
  1.
  The attic area is accessed from an opening not less than 20 inches in width by 30 inches in length that is located where the clear height in the attic is not less than 30 inches.
  2.
  The slopes of the joists or truss bottom chords are not greater than 2 units vertical in 12 units horizontal.
  3.
  Required insulation depth is less than the joist or truss bottom chord member depth.
  The remaining portions of the joists or truss bottom chords shall be designed for a uniformly distributed concurrent live load of not less than 10 pounds per square foot.
  h. Glazing used in handrail assemblies and guards shall be designed with a load adjustment factor of 4. The load adjustment factor shall be applied to each of the concentrated
  loads applied to the top of the rail, and to the load on the in-fill components. These loads shall be determined independent of one another, and loads are assumed not to
  occur with any other live load.
  i. Where the top of a guard system is not required to serve as a handrail, the single concentrated load shall be applied at any point along the top, in the vertical downward direc-
  tion and in the horizontal direction away from the walking surface. Where the top of a guard is also serving as the handrail, a single concentrated load shall be applied in any
  direction at any point along the top. Concentrated loads shall not be applied concurrently.|

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  BUILDING PLANNING

  R301.6 Roof load. The roof shall be designed for the live load indicated in Table R301.6 or the ground snow load indicated in Table R301.2, whichever is greater.

  |TABLE R301.

• CRC § 2-5 Medium relevance — show source text

  Part II—Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

  CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

  R201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

  R202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

  Part III—Building Planning and Construction . . . . . . . . . . . .3-5

  CHAPTER 3 BUILDING PLANNING . . . . . . . . . . . . . . . . . . . . .3-5

  R300 Site Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

  R301 Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

  R302 Fire-Resistant Construction . . . . . . . . . . . . . . . . . . . . 3-23

  R303 Foam Plastic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

  R304 Protection of Wood and Wood-Based Products

  Against Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

  R305 Protection Against Subterranean Termites. . . . . . . 3-35

  R306 Flood-Resistant Construction. . . . . . . . . . . . . . . . . . . 3-36

  R307 Storm Shelters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

  R308 Site Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

  R309 Automatic Sprinkler Systems . . . . . . . . . . . . . . . . . . . 3-41

  R310 Smoke Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54

  R311 Carbon Monoxide Alarms. . . . . . . . . . . . . . . . . . . . . . . 3-58

  R312 Minimum Room Areas . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

  R313 Ceiling Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

• CRC § 16A-5 Medium relevance — show source text

  1604A General Design Requirements. . . . . . . . . . . . . . . . . . . 16A-5

  1605A Load Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-10

  1606A Dead Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-10

  1607A Live Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-11

  1608A Snow Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-19

  1609A Wind Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-24

  1610A Soil Loads and Hydrostatic Pressure. . . . . . . . . . . . 16A-31

  1611A Rain Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-32

  1612A Flood Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-33

  1613A Earthquake Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-34

  1614A Atmospheric Ice Loads . . . . . . . . . . . . . . . . . . . . . . . . 16A-34

  1615A Tsunami Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-34

  1616A Structural Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A-34

  xxvi 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  1617A Modifications to ASCE 7 . . . . . . . . . . . . . . . . . . . . . . . .16A-36

  CHAPTER 17 SPECIAL INSPECTIONS AND TESTS . . . . . . 17-1

  1701 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3

  1702 New Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3

  1703 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3