 Published by I.C.B.O.
Table of Contents
Part I -
Administration
1
Chapter
1 Administration
1
R101 Title,
Scope and Purpose, 1
R102 Applicability, 1
R103 Department of
Building Safety, 1
R104 Duties and Powers of the Building Official,
1
R105 Permits, 2
R106 Construction Documents, 4
R107 Temporary
Structures and Uses, 5
R108 Fees, 5
R109 Inspections, 5
R110
Certificate of Occupancy, 6
R111 Service Utilities, 7
R112 Board of
Appeals, 7
R113 Violations, 7
R114 Stop Work Order,
8
Part II -
Definitions
9
Chapter 2 Definitions 9
R201 General,
9
R202 Definitions, 9
Part III - Building Planning and
Construction
21
Chapter 3 Building
Planning
21
R301 Design Criteria, 21
R302 Location on Lot, 42
R303
Light, Ventilation and Heating, 42
R304 Minimum Room Areas, 43
R305
Ceiling Height, 43
R306 Sanitation, 43
R307 Toilet, Bath and Shower
Spaces, 44
R308 Glazing, 45
R309 Garages and Carports, 46
R310
Emergency Escape and Rescue Openings, 47
R311 Exits, 47
R312
Landings, 47
R313 Ramps, 48
R314 Stairways, 48
R315 Handrails,
49
R316 Guards, 49
R317 Smoke Alarms, 49
R318 Foam Plastic,
50
R319 Flame Spread and Smoke Density, 50
R320 Insulation,
50
R321 Dwelling Unit Separation, 51
R322 Moisture Vapor Retarders,
52
R323 Protection Against Decay, 52
R324 Protection Against
Termites, 53
R325 Site Address, 54
R326 Accessibility, 54
R327
Flood-resistant Construction 54
Chapter 4 Foundations 57
R401 General,
57
R402 Materials, 57
R403 Footings, 58
R404 Foundation Walls,
66
R405 Foundation Drainage, 76
R406 Foundation Waterproofing and
Dampproofing, 76
R407 Columns, 78
R408 Under-floor Space,
78
Chapter 5 Floors 79
R501 General,
79
R502 Wood Floor Framing, 79
R503 Floor Sheathing, 86
R504
Pressure Preservatively Treated-wood Floors (On Ground), 88
R505 Steel
Floor Framing 88
R506 Concrete Floors (On Ground) 101
Chapter 6 Wall Construction
103
R601 General, 103
R602 Wood Wall Framing, 103
R603
Steel Wall Framing, 122
R604 Wood Structural Panels, 165
R605
Particleboard, 165
R606 General Masonry Construction, 165
R607 Unit
Masonry, 173
R608 Multiple Wythe Masonry, 175
R609 Grouted Masonry,
175
R610 Glass Unit Masonry, 177
R611 Insulating Concrete Form Wall
Construction, 179
R612 Conventionally Formed Concrete Wall
Construction, 198
R613 Exterior Windows and Glass Doors,
198
Chapter 7 wall covering 201
R701 General,
201
R702 Interior Covering, 201
R703 Exterior Covering,
204
Chapter 8 roof-ceiling construction 213
R801 General,
213
R802 Wood Roof Framing, 213
R803 Roof Sheathing, 237
R804
Steel Roof Framing, 237
R805 Ceiling Finishes, 248
R806 Roof
Ventilation, 249
R807 Attic Access, 249
R808 Insulation Clearance,
249
Chapter 9 Roof Assemblies 251
R901 General
251
R902 Roof Classification, 251
R903 Weather Protection,
251
R904 Materials, 251
R905 Requirements for Roof Coverings,
252
R906 Roof Insulation, 259
R907 Reroofing, 259
Chapter 10 Chimneys and Fireplaces 261
R1001 Masonry
Chimneys, 261
R1002 Factory-built Chimneys, 265
R1003 Masonry
Fireplaces, 265
R1004 Factory-built Fireplaces, 269
R1005 Exterior
Air Supply, 269
Part IV - Energy Conservation
271
Chapter 11 Energy Efficiency 271
N1101 General,
271
N1102 Building Envelope, 281
N1103 Mechanical Systems,
284
N1104 Service Water Heating, 284
Part V - Mechanical 287
Chapter 12 Mechanical Administration 287
M1201 General,
287
M1202 Existing Mechanical Systems 287
Chapter 13 General Mechanical System Requirements
289
M1301 General, 289
M1302 Approval, 289
M1303
Labeling of Appliances, 289
M1304 Type of Fuel, 289
M1305 Appliance
Access, 289
M1306 Clearances from Combustible Construction,
290
M1307 Appliance Installation, 290
M1308 Mechanical Systems
Installation, 291
Chapter 14 Heating and Cooling Equipment
295
M1401 General, 295
M1402 Central Furnaces,
295
M1403 Heat Pump Equipment, 295
M1404 Refrigeration Cooling
Equipment, 295
M1405 Baseboard Convectors, 295
M1406 Radiant Heating
Systems, 295
M1407 Duct Heaters, 296
M1408 Vented Floor Furnaces,
296
M1409 Vented Wall Furnaces, 296
M1410 Vented Room Heaters,
297
M1411 Refrigeration Cooling Equipment, 297
M1412 Absorption
Cooling Equipment, 297
M1413 Evaporative Cooling Equipment,
298
M1414 Fireplace Stoves, 298
Chapter 15 Exhaust Systems 299
M1501 Clothes
Dryers Exhaust, 299
M1502 Range Hoods, 299
M1503 Installation of
Microwave Ovens, 299
M1504 Overhead Exhaust Hoods, 299
M1505 Exhaust
Ducts, 299
Chapter 16 Duct Systems 301
M1601 Duct
Construction, 301
M1602 Return Air, 303
M1603 Supply Air,
303
Chapter 17 Combustion Air 305
M1701 General,
305
M1702 All Air form in side the Building, 305
M1703 All Air from
Outdoors, 305
Chapter 18 Chimneys and Events 315
M1801 General,
315
M1802 Vent Components, 315
M1803 Chimney and Vent Connectors,
316
M1804 Vents, 317
M1805 Masonry and Factory-built Chimneys,
317
Chapter 19 Special Fuel-Burning Equipment
319
M1901 Ranges and Ovens, 319
M1902 Sauna Heaters,
319
Chapter 20 Boilers/water Heaters 321
M2001 Boilers,
321
M2002 Operating and Safety Controls, 321
M2003 Expansion Tanks,
321
M2004 Water Heaters Used for Space Heating, 321
M2005 Water
Heaters, 322
M2006 Pool Heaters, 322
Chapter 21 Hydronic Piping 323
M2101 Hydronic
Piping Systems Installation, 323
M2102 Baseboard Convectors,
323
M2103 Floor Heating Systems, 323
M2104 Low Temperature Piping,
323
M2105 Ground Source Heat Pump System Loop Piping,
324
Chapter 22 Special Piping and Storage Systems
327
M2201 Oil Tanks, 327
M2202 Oil Piping, Fitting and
Connections, 327
M2203 Installation, 327
M2204 Oil Pumps and Valves,
328
Chapter 23 Solar Systems 329
M2301 Solar
Energy Systems, 329
Part VI - Fuel Gas 331
Chapter 24 Fuel Gas 331
G2401 General, 331
G2402
General, 331
G2403 General Definitions, 331
G2404 General,
336
G2405 Structural Safety, 337
G2406 Appliance Location,
337
G2407 Combustion, Ventilation and Dilution Air, 337
G2408
Installation, 341
G2409 Clearance Reduction, 341
G2410 Electrical,
344
G2411 General, 344
G2412 Pipe Sizing, 345
G2413 Piping Materials,
347
G2414 Piping System Installation, 349
G2415 Piping Bends
and Changes in Direction, 350
G2416 Inspection, Testing and Purging,
350
G2417 Piping Support, 352
G2418 Drips and Sloped Piping,
352
G2419 Gas Shutoff Valves, 352
G2420 Flow Controls, 352
G2421
Appliance Connections, 353
G2422 CNG Gas-dispensing Systems,
353
G2423 Piping Support Intervals 353
G2424 General
353
G2425 Vents, 355
G2426 Venting of Equipment, 355
G2427 Sizing
of Category I Appliance Venting Systems, 364
G2428 Direct-vent,
Integral Vent, Mechanical Vent
and
Ventilation/Exhaust Hood Venting, 373
G2429 Factory-built Chimneys,
373
G2430 General, 373
G2431 Decorative Appliances for Installation
in Fireplaces, 374
G2432 Log Lighters, 374
G2433 Vented Decorative
Appliances, 374
G2434 Vented Wall Furnaces, 374
G2435 Floor
Furnaces, 374
G2436 Clothes Dryers, 375
G2437 Clothes Dryer Exhaust,
375
G2438 Sauna Heaters, 375
G2439 Pool and Spa Heaters,
376
G2440 Forced-air Warm-air Furnaces, 376
G2441 Conversion
Burners, 377
G2442 Unit Heaters, 377
G2443 Unvented Room Heaters,
377
G2444 Vented Room Heaters, 377
G2445 Cooking Appliances,
377
G2446 Water Heaters, 378
G2447 Air Conditioning Equipment
378
G2448 Illuminating Appliances, 378
G2449 Infrared Radiant
Heaters, 378
G2450 Boilers, 378
G2451 Chimney Damper Opening Area,
379
Part VII - Plumbing
381
Chapter 25 Plumbing Administration
381
P2501 General, 381
P2502
Existing Plumbing Systems, 381
P2503 Inspection and Tests,
381
Chapter 26 General Plumbing Requirements
383
P2601 General, 383
P2602
Individual Water Supply and Sewage Disposal, 383
P2603 Structural and
Piping Protection, 383
P2604 Trenching
and Backfilling, 383
P2605 Support, 384
P2606 Waterproofing of
Openings, 384
P2607 Workmanship, 384
P2608 Materials Evaluation and
Listing, 384
Chapter 27 Plumbing Fixtures 387
P2701 Fixtures,
Faucets and Fixture Fittings, 387
P2702 Fixture Accessories,
387
P2703 Tail Pieces, 387
P2704 Access to Connections, 387
P2705
Installation, 387
P2706 Waste Receptors, 387
P2707 Directional
Fittings 388
P2708 Showers, 388
P2709 Shower Receptors, 389
P2710
Shower Walls, 389
P2711 Lavatories, 389
P2712 Water Closets,
389
P2713 Bathtubs, 390
P2714 Sinks, 390
P2715 Laundry Tubs,
390
P2716 Food-waste Grinder, 390
P2717 Dishwashing Machines,
390
P2718 Clothes Washing Machine, 390
P2719 Floor Drains,
390
P2720 Whirlpool Bathtubs, 390
P2721 Bidet Installations,
391
P2722 Fixture Fitting 391
P2723 Macerating Toilet Systems,
391
Chapter 28 Water Heaters 393
P2801 General,
393
P2802 Water Heaters Used for Space Heating, 393
P2803 Relief
Valves, 393
Chapter 29 Water Supply and Distribution
395
P2901 General, 395
P2902 Protection of Potable Water
Supply, 395
P2903 Water-supply System, 396
P2904 Materials, Joints
and Connections, 401
P2905 Changes in Direction, 403
P2906 Support,
403
P2907 Drinking Water Treatment Units, 403
Chapter 30 Sanitary Drainage 405
P3001 General,
405
P3002 Materials, 405
P3003 Joints and Connections, 405
P3004
Determining Drainage Fixture Units, 408
P3005 Drainage System,
408
P3006 Sizing of Drain Pipe Offsets, 411
P3007 Sumps and
Ejectors, 411
P3008 Backwater Valves, 411
Chapter 31 Vents 413
P3001 Vent
Systems, 413
P3102 Vent Stacks and Stack Vents, 413
P3103 Vent
Terminals, 413
P3104 Vent Connections and Grades, 413
P3105 Fixture
Vents, 414
P3106 Individual Vent, 414
P3107 Common Vent,
415
P3108 Wet Venting, 415
P3109 Waste Stack Vent, 415
P3110
Circuit Venting, 415
P3111 Combination Waste and Vent System,
416
P3112 Island Fixture Venting, 416
P3113 Vent Pipe Sizing,
416
P3114 Air Admittance Valves, 417
Chapter 32 Traps 425
P3201 Fixture
Traps, 425
Part VIII - Electrical 427
Chapter 33 General Requirements 427
E3301 General,
427
E3302 Building Structure Protection, 427
E3303 Inspection and
Approval, 427
E3304 General Equipment Requirements, 427
E3305
Equipment Location and Clearances, 428
E3306 Electrical Conductors and
Connections, 430
E3307 Conductor and Terminal Identification,
430
Chapter 34 Electrical Definitions 433
E3401 General,
433
Chapter 35 Services 437
E3501 General Services,
437
E3502 Service Size and Rating, 437
E3503 Service, Feeder and
Grounding Electrode
Conductor
Sizing, 438
E3504 Overhead Service-drop and Service
Conductor
Installation, 439
E3505 Service-entrance Conductors, 441
E3506
Service Equipment--General, 442
E3507 System Grounding, 442
E3508
Grounding Electrode System, 442
E3509 Bonding, 443
E3510 Grounding
Electrode Conductors, 444
E3511 Grounding Electrode Conductor
Connection to
the
Grounding
Electrodes, 444
Chapter 36 Branch Circuit and Feeder Requirements,
447
E3601 General, 447
E3602 Branch Circuit Ratings,
447
E3603 Required Branch Circuits, 448
E3604 Feeder Requirements,
449
E3605 Conductor Sizing and Overcurrent Protection, 450
E3606
Panelboards, 452
Chapter 37 Wiring Methods 453
E3701
General Requirements, 453
E3702 Above-ground Installation Requirements,
453
E3703 Underground Installation Requirements, 453
Chapter 38 Power and Lighting Distribution
459
E3801 Receptacle Outlets, 459
E3802 Ground-fault and
Arc-fault Circuit-interrupter Protection, 461
E3803 Lighting Outlets,
461
E3804 General Installation Requirements, 461
E3805 Boxes,
Conduit Bodies and Fittings, 462
E3806 Installation of Boxes, Conduit
Bodies and Fittings, 474
E3807 Cabinets and Panelboards, 476
E3808
Grounding, 476
E3809 Flexible Cords, 478
Chapter 39 Devices and Lighting Fixtures
479
E3901 Switches, 479
E3902 Receptacles, 479
E3903
Fixtures, 480
E3904 Fixture Installation, 482
E3905 Track Lighting,
482
Chapter 40 Appliance Installation 483
E4001 General,
483
Chapter 41 Swimming Pools 485
E4101 General,
485
E4102 Wiring Methods for Pools, Spas, Hot Tubs
and
Hydromassage
Bathtubs, 485
E4103 Equipment Location and Clearances, 486
E4104
Bonding, 488
E4105 Grounding, 489
E4106 Equipment Installation,
490
E4107 Storable Swimming Pools, 492
E4108 Spas and Hot Tubs,
492
E4109 Hydromassage Bathtubs, 493
Chapter 42 Class 2 Remote-Control, Signaling and Power-Limited
Circuits 495
E4201 General,
495
E4202 Power Sources, 495
E4203 Wiring Methods, 495
E4204
Installation Requirements, 496
Part IX - Referenced Standards
497
Chapter 43 Referenced Standards
497
Part X - Appendices 511
Appendix A
Sizing and Capacities of Gas Piping
511
Appendix B
Sizing of Venting Systems Serving Appliances
Equipped With Draft Hoods, Category I Appliances, and Appliances Listed
For Use and Type B Vents 515
Appendix C
Exit Terminals Of Mechanical Draft And Direct-Vent
Venting Systems 525
Appendix D
Recommended Procedure For Safety Inspection Of An
Existing Appliance Installation 527
Appendix E
Manufactured Housing Used As Dwellings
529
AE101 Scope, 529
AE102 Application to Existing
Manufactured Homes
and
Building Service Equipment, 529
AE201 Definitions, 530
AE301
Permits, 530
AE302 Application for Permit, 530
AE303 Permits
Issuance, 531
AE304 Fees, 531
AE305 Inspections, 532
AE306
Special Inspections, 533
AE307 Utility Service, 533
AE401 Occupancy
Classification, 533
AE402 Location on Property, 533
AE501 Design,
533
AE502 Foundation Systems, 534
AE503 Skirting and Perimeter
Enclosures, 534
AE504 Structural Additions, 534
AE505 Building
Service Equipment, 534
AE506 Exits, 534
AE507 Occupancy, Firesafety
and Energy
Conservation
Standards, 535
AE600 Special Requirements for Foundation Systems,
535
AE601 Footings and Foundations, 535
AE602 Pier Construction,
535
AE603 Height of Piers, 535
AE604 Anchorage Installations,
535
AE605 Ties, Materials and Installation, 536
Appendix F
Radon Control Methods 537
AF101 Scope,
537
AF102 Definitions, 537
AF103 Requirements, 537
Appendix G
Swimming Pools, Spas and Hot Tubs
545
AG101 General, 545
AG102 Definitions,
545
AG103 Swimming Pools, 545
AG104 Spas and Hot Tubs, 545
AG105
Barrier Requirements, 545
AG106 Abbreviations, 546
AG107 Standards,
546
Appendix H
Patio Covers 547
AH101 General,
547
AH102 Definition, 547
AH103 Permitted Uses, 547
AH104 Design
Loads, 547
AH105 Light and Ventilation/Emergency Egress, 547
AH106
Footings, 547
Appendix I
Private Sewage Disposal
549
A1101 General, 549 
Appendix J
Existing Buildings and Structures
551
AJ101 Purpose and Intent 551
AJ102 Compliance,
551
AJ103 Preliminary Meeting, 551
AJ104 Evaluation of an Existing
Building, 551
AJ105 Permit, 552
AJ201 Definitions, 552
AJ301
Repairs, 552
AJ401 Renovations, 553
AJ501 Alterations, 553
AJ601
Reconstruction, 554
Appendix K
Sound Transmission 555
AK101 General,
555
AK102 Airborne Sound, 555
AK103 Structural-borne Sound,
55
Index 557
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