Library of Congress Catalog Card Number 84-62480
COPYRIGHT 1985
by
International Conference of Building Officials 5360 SOUTH WORKMAN MILL ROAD e WHITTIER CALIFORNIA 90601
PRINTED IN THE U.S.A.
Preface THE UNIFORM BUILDING CODE is dedicated to the development of
better building construction and greater safety to the public by uniformity in building laws. The code is founded on broad-based performance principles that make possible the usc of new materials and new construction systems.
THE UNIFORM BUILDING CODE was first enacted by the International Conference of Building Officials at the Sixth Annual Business Meeting held in Phoenix, Arizona, October 18-21, 1927. Revised editions of this code have been published since that time at approximate three-year intervals. New editions incorporate changes approved since the last edition.
THE UNIFORM BUILDING CODE is designed to be compatible with related publications listed on the following pages to provide a complete set of documents for regulatory use.
Anyone may propose amendments to this code. For more information, write to the International Conference of Building Officials at the address on the copyright page.
Changes to the code are processed each year and published in supplements in a form permitting ready adoption by local communities. These changes are care­ fully reviewed in public hearings by professional experts in the field of building construction and fire and life safety.
Solid vertical lines in the margins indicate a change from the requirements of the 1982 edition except where the entire chapter was revised, a new chapter was added or the change was minor. Where an entire chapter is changed or new chapter was added, a notation appears at the beginning of that chapter. Vertical lines in the margins that are interrupted by the letter "F" indicate that the provision is maintained under the code change procedures of the Western Fire Chiefs Associa­ tion. Deletion indicators ( .. ) are provided in the margin where a paragraph or item listing has been deleted if the deletion resulted in a change of requirements.
An analysis of changes between editions is published in pamphlet form by the Conference.
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RELATED PUBLICATIONS Known widely for its Uniform Building Code, the International Conference of Building
Officials publishes other related codes as well as textbooks to enable the user to improve his knowledge of code enforcement and the administration of a building inspection program. Publications are continualiy being added, so inquiries should be directed to Conference headquarters for a list of those available. At the time of this publication, the following publications were available:
Uniform Building Code. Covers the fire, life and structural safety aspects of all build­ ings and related structures.
Uniform Building Code Standards. Presents in a compact and concise manner national test, material and special design standards referred to in the Uniform Building Code.
Uniform Mechanical Code. Contains requirements for the installation and maintenance of heating, ventilating, cooling and refrigeration systems. This publication is sponsored jointly by the the International Conference of Building Officials and the International Association of Plumbing and Mechanical Officials.
Uniform Plumbing Code. Published by the International Association of Plumbing and Mechanical Officials, the Uniform Plumbing Code covers all aspects of plumbing, includ­ ing requirements for plumbing materials, and IAPMO installation standards. It is endorsed by the Conference as a companion document to ICBO's model codes and is available from either organization.
Uniform Housing Code. Provides complete requirements affecting conservation and rehabilitation of housing. Its regulations are compatible with the Uniform Building Code.
Uniform Code for the Abatement of Dangerous Buildings. Sets forth orderly proce­ dures for remedying dangerous buildings. Follows due process provisions which reflect the latest court decisions in such matters. This code covers all structures and may be used to supplement the Uniform Housing Code and the Uniform Building Code.
Uniform Sign Code. Dedicated to the development of better sign regulation. Its require­ ments pertain to all signs and sign construction attached to buildings.
Uniform Administrative Code. This code covers administration areas in connection with adoption of the Uniform Building Code, Uniform Mechanical Code and related codes by a jurisdiction. It contains provisions which relate to site preparation, construction, alteration, moving, repair and use and occupancies of buildings or structures and building service equipment including plumbing, electrical and mechanical. The code is compatible with the administrative provisions of all codes published by the Conference.
Uniform Building Security Code. This code establishes minimum standards to make dwelling units resistant to unlawful entry. It regulates swinging doors, sliding doors, windows and hardware in connection with dwelling units of apartment houses or one- and two-family dwellings. The code gives consideration to the concerns of police, fire and building officials in establishing requirements for resistance to burglary which are compati­ ble with fire and life safety.
Dwelling Construction under the Uniform Building Code. Designed to acquaint the home builder with basic Building Code requirements relating to dwelling construction. A useful text for apprentice training programs.
Uniform Fire Code. Sets out provisions necessary for fire prevention while achieving uniformity in terms and requirements with other codes published by the Conference. This code is sponsored jointly by the Western Fire Chiefs Association and the International Conference of Building Officials.
Uniform Fire Code Standards. This publication is a companion to the Uniform Fire Code. It contains standards of the American Society for Testing and Materials and of the National Fire Protection Association referenced by the Uniform Fire Code.
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U.B.C. Supplements. Between new editions of the codes, changes approved each year are incorporated in the supplements.
Analysis of Revisions. Discusses the changes included in the latest codes published by the Conference as compared to the prior editions.
CABO One and Two Family Dwelling Code. This code is jointly sponsored by the International Conference of Building Officials, Building Officials and Code Administrators International, Inc., and Southern Building Code Congress International, Inc. It eliminates conflicts and duplications among the model codes to achieve national uniformity. Covers mechanical and plumbing requirements as well as construction and occupancy.
Application and Commentary CABO One and Two Family Dwelling Code. An interpretive commentary on the CABO One and Two Family Dwelling Code intended to enhance uniformity of interpretation and application of the code nationwide. Developed by the three model code organizations under contract with the Department of Housing and Urban Development (HUD) and in cooperation with the National Association of Home Builders (NAHB).
CABO Model Energy Code. This code sets forth minimum requirements for effective use of energy in the design of new buildings and structures and additions to existing buildings. It is based on ASHRAE Standard 90A-1980 and was originally developed jointly by ICBO, BOCA, SBCCI and the National Conference of States on Building Codes and Standards (NCSBCS) under a contract funded by the U.S. Department of Energy. The code is now maintained by the Council of American Building Officials (CABO) and is adopted by reference in the Uniform Building Code.
Uniform Disaster Mitigation Plan. A plan developed to aid building departments in coping with major disasters such as fires, floods and earthquakes. Defines standard operat­ ing procedures for initiating disaster assessment and mitigation and includes samples of records, reports, entry signs, etc.
National Electrical Code. The National Electrical Code is the electrical code for the majority of states, counties and cities in the United States. Researched and published every three years by the National Fire Protection Association, it is an indispensable aid to every electrician, electrical inspector, electrical equipment manufacturer, architect, builder, con­ sulting engineer, contractor, fire marshal, fire chief, building inspector and anyone who must specify or certify electrical installations.
1984 National Fire Codes. Available through ICBO are the 1984 National Fire Codes published by the National Fire Protection Association (NFPA). The eight-volume set provides guidelines for code enforcement, inspection, design and maintenance of buildings in a single source reference.
Building Department Administration. An excellent guide for improvement of skills in departmental management and in the enforcement and application of the Building Code and other regulations administered by a building inspection department. Recommended for both undergraduate and advanced study.
Uniform Building Code Application/Interpretation Manual. A manual discussing sections of the Uniform Building Code with a question/answer format, providing a compre­ hensive analysis of the intent of the code section. Most sections include illustrative exam­ ples. The manual is in loose-leaf form so that code interpretations published in Building Standards may be inserted.
Plan Review Manual. Provides an understanding of the extent of Building Code provi­ sions and illustrates application to given situations. Covers nonstructural aspects as well as providing an insight into the basic engineering considerations a plan examiner or checker must utilize.
Field Inspection Manual. Designed to improve inspection skills and techniques. A fundamental important text for courses of study at the community college and trade or technical school level.
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Building Official Management Manual. This manual addresses the unique nature of code administration and the managerial duties of the building official. A supplementary insert addresses the budgetary and financial aspects of a building department. It is also an ideal resource for those preparing for the management module of the CABO Building Official Certification Examination.
Illustrated Mechanical Manual. Contains a series of illustrations with explanatory text covering requirements in the Uniform Mechanical Code which respond\~ graphic treat· ment. It is highly useful for code application and for training purposes.
Solar Systems Code Review Manual. A completely illustrated manual to facilitate approval of solar systems, from plan check to field inspection. Specifically addresses needs of building departments, and is equally valuable to all departments dealing with housing and commercial structures. Developed by California Building Officials, Inc., (CALBO) under contract with the California Energy Commission.
Solar Swimming Pool/Spa Code Review Manual. A completely illustrated manual to assist local officials in identifying, understanding and completing a code analysis of solar pool and spa heating systems presented for permit approval. Developed by the California Building Officials, Inc., (CALBO) under contract to the California Energy Commission.
Concrete Manual. A publication on concrete to be used for reference or as a text on concrete inspection. Of particular interest to inspectors, it is also useful to concrete techni­ cians and craftsmen who are more concerned with the physical and practical aspects of concrete than the design.
You Can Build It! Sponsored by the Council of American Building Officials (CABO), this booklet contains information and advice to aid "do-it-yourselfers" with building projects. Provides guidance in necessary procedures such as permit requirements, codes, plans, cost estimation, etc.
Installation and Operation of Solid-fuel-burning Appliances. A fully illustrated man­ ual designed to provide information on the proper installation and operation of listed solid­ fuel-burning appliances. Intended to supplement the detailed installation and operating instructions normally supplied with these types of appliances. An aid to building officials administering ICBO codes and standards and/or utilizing evaluation reports.
Recommended Provisions and Commentary for Existing High-rise Buildings. A booklet setting forth uniform guidelines for the building official to follow in regulating the retrofitting of existing high-rise buildings. The booklet also includes a commentary briefly explaining the conceptual basis of the provisions.
Guidelines for Manufactured Housing Installation. A guideline in code form imple­ menting the Uniform Building Code and its companion code documents to regulate the permanent installation of a manufactured home on a privately owned nonrental site. A commentary is included to explain specific provisions, and codes applying to each compo­ nent part are defined.
Guidelines for Solar Energy Installations. Provides an understanding of requirements protecting public health and safety where solar systems are utilized. Compatible with the Uniform Building, Mechanical and Plumbing Codes and the National Electrical Code. Developed by ICBO and IAPMO with the technical assistance of the solar industry under a contract between the California Building Officials and the California Energy Commission.
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Effective Use of the Uniform Building Code . ..... .
Sample Ordinance for Adoption of the Uniform Building Code and Uniform Building Code Standards ....
Part !-Administrative
Title, Scope and General Title ........................................... . Purpose ................................ . Scope...... . .................. . Application to Existing Buildings and Structures ... . Alternate Materials and Methods of Construction .. . Modifications. . . . ......................... . Tests.. . . . . . . . . . . . . . ................ .
CHAPTER 2. Organization and Enforcement SEC. 20 I. Creation of Enforcement Agency ............... .
202. Powers and Duties of Building Official .. 203. Unsafe Buildings or Structures ....... . 204. Board of Appeals .................... . 205. Violations. . . ................. .
CHAPTER 3. Permits and Inspections SEC. 30 I. Permits. . ...... .
302. Application for Permit .. 303. Permits Issuance . 304. Fees . . . . . . ........... . 305. Inspections. . . . . . . . .............. . 306. Special Inspections ........................ . 307. Certificate of Occupancy ...................... .
Part 11-Definitions and Abbreviations
CHAPTER 4. Definitions and Abbreviations.
Part Ill-Requirements Based on Occupancy
CHAPTER 5. Classification of All Buildings by Use or Occu­ pancy and General Requirements for All Occupancies
SEC. 50 I. Occupancy Classified ............................. . 502. Change in Use . . . . . .......... . 503. Mixed Occupancy . . . . . ............ . 504. Location on Property ...................... . 505. Allowable Floor Areas ....................... . 506. Allowable Area Increases ....... . 507. Maximum Height of Buildings and Increases ....
Page
xxi
xxii
4 4 5 5 6
7 7 8
VII
Page
508. Fire-resistive Substitution . . . . . . . . . 33 509. Pedestrian Walkways. . . . . . . . . . . . . . . . . . . . . . 34 510. Sanitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 511. Access to Toilets and Other Facilities . . . . . . . 35 512. Compressed Gases. . . . . . . . . . . . . . . 36 513. Premises Identification . . . . . . . . . . . . . . 36
CHAPTER 6. Requirements for Group A Occupancies SEC. 601. Group A Occupancies Defined ...... . 43
43 44 44 45 45 45 45 46
602. Construction, Height and Allowable Area .. 603. Location on Property ............. . 604. Exit Facilities ..................... . 605. Light, Ventilation and Sanitation .. 606. Shaft Enclosures ................. . 607. Sprinkler and Standpipe Systems ...... . 608. Special Hazards .... . 609. Modifications ............................... .
CHAPTER 7. Requirements for Group B Occupancies SEC.
CHAPTER SEC.
CHAPTER SEC.
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70 I . Group B Occupancies Defined ...................... . 47 47 48 48 48 49 50 50 50 52
702. Construction, Height and Allowable Area .............. . 703. Location on Property .............................. . 704. Exit Facilities .................................... . 705. Light, Ventilation and Sanitation ..................... . 706. Shaft Enclosures ................................. . 707. Sprinkler and Standpipe Systems ..................... . 708. Special Hazards .................................. . 709. Open Parking Garages ............................. . 710. Helistops ....................................... .
8. Requirements for Group E Occupancies 801. GroupE Occupancies Defined . . . . . . . . . . . . . . . . . . . . . . . 54 802. Construction, Height and Allowable Area. . . . . . . . . . . . . . . 54 803. Location on Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 804. Exit Facilities. . . . . . . . . . . . . . . . . . . . . . 55 805. Light, Ventilation and Sanitation. . . . . . . . . . . . . . . . . . . . . . 55 806. Shaft Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 807. Sprinkler and Standpipe Systems. . . . . . . . . . . . . . 56 808. Special Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 809. Fire Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9. Requirements for Group H Occupancies 901. Group H Occupancies Defined . . . . . . . . . . . . . . 57 902. Construction, Height and Allowable Area. . . . . . 58 903. Location on Property . . . . . . . . . . . . . . . . . 59 904. Exit Facilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 905. Light, Ventilation and Sanitation. . . . . . . . . . . . . . . . 59 906. Shaft Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . 60 907. Sprinkler and Standpipe Systems. . . . . . . . . . . . . . . . 60 908. Special Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 909. Fire Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 910. Explosion Venting . . . . . . . . . . . . . . . . . . 61 911. Division 6 Occupancies . . . . . . . . . . . . . . . . . . . . 62
CHAPTER 10. Requirements for Group I Occupancies SEC. I 00 I. Group I Occupancies Defined ....................... .
1002. Cunstruction, Height and Allowable Area .............. . I 003. Location on Property .............................. . 1004. Exit Facilities .................................... . 1005. Light, Ventilation and Sanitation ..................... . 1006. Shaft Enclosures ................................. . I 007. Sprinkler and Standpipe Systems ..................... . 1008. Special Hazards .................................. . 1009. Fire Alarms ..................................... .
CHAPTER 11. Requirements for Group M Occupancies SEC. 1101. Group M Occupancies Defined ...................... .
1102. Construction, Height and Allowable Area .............. . 1103. Location on Property .............................. . 1104. Special Hazards .................................. . II 05. Garage Floor Surfaces ............................. . 1106. Agricultural Buildings ............................. .
CHAPTER 12. SEC. 1201.
1202. 1203. 1204. 1205. 1206. 1207. 1208. 1209. 1210. 1211. 1212. 1213.
Requirements for Group R Occupancies Group R Occupancies Defined ...................... . Construction, Height and Allowable Area .............. . Location on Property .............................. . Exits and Emergency Escapes ....................... . Light, Ventilation and Sanitation ..................... . Yards and Courts ................................. . Room Dimensions ................................ . Efficiency Dwelling Units .......................... . Shaft Enclosures ................................. . Fire-warning and Sprinkler Systems .................. . Heating ......................................... . Special Hazards .................................. . Access to Buildings and Facilities .................... .
CHAPTERS 13-16 (No Requirements)
Part IV-Requirements Based on Types of Construction
CHAPTER 17. Classification of All Buildings by Types of Construction and General Requirements
SEC. 170 I. General. .. 1702. Structural Frame ...... . 1703. Usable Space Under Floors 1704. Roofs ..... 1705. Exceptions toTable No. 17-A .. 1706. Shaft Enclosures 1707. Weather Protection ........... . 1708. Members Carrying Masonry or Concrete ......... . I 709. Parapets . 1710. Projections. . ....... . 1711. Guardrails .. . 1712. Foam Plastic Insulation .... .
Page
69 69 69 69 69 70
71 71 71 71 72 73 73 74 74 74 75 75 76
77 77 77 77 78 79 80 81 81 81 82 82
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X
1713. Insulation ................................. . 1714. Solar Energy Collectors ................. . 1715. Atriums .......... . 1716. Mezzanines ................ .
CHAPTER 18. Type I Fire-resistive Buildings SEC. 1801. Definition .................................... .
1802. Structural Framework .......................... . 1803. Exterior Walls and Openings ........................ . 1804. Floors .......................................... . 1805. Stair Construction ................................ . 1806. Roofs .......................................... . 1807. Special Provisions for Group B, Division 2 Office
Buildings and Group R, Division I Occupancies ........ .
CHAPTER 19. Type II Buildings SEC. 190 I. Definition. . . .............. .
1902. Structural Framework ...................... . 1903. Exterior Walls and Openings ................. . 1904. Floors .................................... . 1905. Stair Construction ............ . 1906. Roof Construction ........................... . 1907. Special Provisions for Group B, Division 2 Office
Buildings and Group R, Division I Occupancies ....
CHAPTER 20. Type Ill Buildings SEC. 2001. Definition ............................ .
2002. Structural Framework . . . . ........ . 2003. Exterior Walls, Openings and Partitions ... . 2004. Stair Construction ..................... . 2005. Roofs .......................... .
CHAPTER 21. Type IV Buildings SEC. 2101.
2102. 2103. 2104. 2105. 2106.
Definition ..... Structural Framework ... Exterior Walls, Openings and Partitions ............. . Stair Construction ............... . Roofs ......................... . Heavy Timber Construction ......... .
CHAPTER 22. Type V Buildings SEC. 2201.
2202. 2203. 2204.
Page
92
103 103 103 104 104 104
106 106 106 106
CHAPTER 23. SEC. 2301.
2302. 2303. 2304. 2305. 2306. 2307. 2308. 2309. 2310. 2311. 2312.
General Design Requirements Scope ................................ . Definitions .... . Design Methods. Floor Design Roof Design ........... . Reduction of Live Loads .. . Deflection ..... Special Design . . .......... . Walls and Structural Framing .............. . Anchorage of Concrete or Masonry Walls ..... . Wind Design . . . ........ . Earthquake Regulations. . . . . . ........ .
CHAPTER 24. Masonry SEC. 2401.
2402. 2403. 2404. 2405. 24011. 2407. 2408. 2409. 2410. 2411.
Scope. Material Standards .. Mortar and Grout ... Construction .... Quality Control Allowable Stresses. Design, General Requirements . . ......... . Design. Unreinforced Masonry .. Design, Reinforced Masonry. Design. Composite Construction. Design. Reinforced Masonry Slender Wall .
CHAPTER 25. Wood SEC. 2501.
2502. 2503. 2504. 2505. 25011. 2507. 2508. 2509. 2510. 2511. 2512. 2513. 2514. 2515. 2516. 2517.
General. ......... . Definitions and Symbols ... . Size of Structural Members ......... . Stresses . . . . . ....... . Identification . . . . ....... . Horizontal Member Design ........ . Column Design ........ . Flexural and Axial Loading Combined Compression at Angle to Grain .... Timber Connections and Fastenings .. Structural Glued-laminated Timber Design. Design of Glued Built-up Members ............. . Wood Diaphragms . . . . . . . . . . . . ....... . Fiberboard Sheathing Diaphragms .. Wood Combined with Masonry or Concrete General Construction Requirements . Conventional Construction Provisions
CHAPTER 26. Concrete SEC. 260 1 . Scope . . ......... .
2602. Definitions
107 107 107 108 109 110 111 111 112 112 112 114
138 141 143 144 147 149 153 160 161 166 167
176 176 179 179 183 184 187 189 191 191 192 197 197 199 200 200 208
323 323
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2603. 2604. 2605. 2606. 2607. 2608. 2609. 2610. 2611. 2612. 2613. 2614. 2615. 2616. 2617. 2618. 2619. 2620. 2621. 2622. 2623. 2624. 2625.
2626. 2627.
Specifications for Tests and Materials .......... . Construction Requirements--Concrete Quality .... . Mixing and Placing Concrete. Form work. Embedded Pipes and Construction Joints. Details of Reinforcement .... Analysis and Design ........... . Strength and Serviceability Requirements. Flexure and Axial Loads Shear and Torsion. Development and Splices of Reinforcement .......... . Slab Systems with Multiple Square or Rectangular Panels . Walls Footings. . . . . . . . . . . . . ............... . Precast Concrete Composite Concrete Flexural Members Prestressed Concrete ................. . Shells and Folded Plates . . ....... . Strength Evaluation of Existing Structures Pneumatically Placed Concrete .. Plain Concrete Minimum Slab Thickness ... Bolts. . ....... . Reinforced Concrete Structures Resisting Forces Induced by Earth<juake Motions. Alternate Design Method ... Reinforced Gypsum Concrete
CHAPTER 27. Steel SEC. 2701.
2702. 2703. 2704. 2705. 2706. 2707. 2708. 2709. 2710. 2711. 2712. 2713. 2714. 2715. 2716. 2717. 2718. 2719. 2720. 2721. 2722.
2723.
2724. 2725.
Material Standards and Symbols ... Allowable Unit Stresses ..... Combined Stresses. Stress Reversal ..... Stability and Slenderness Ratios Width-Thickness Ratios .. Plate Girders and Rolled Beams Composite Construction ..... . Simple and Continuous Spans .. Deflections. Vibrations and Ponding. Gross and Net Areas Connections . Rivets and Bolts .......... . Welds ... Built-up Members .. Camber. .. Expansion Column Bases Anchor Bolts .. . Fabrication .......................... . Plastic Design Steel Ductile Moment-resisting Space Frames-Seismic Zones Nos. 3 and 4 .......... . Steel Ductile Moment-resisting Space Frames-Seismic Zones Nos. I and 2 Steel Storage Racks . Steel Cables .
Page
326 328 334 :ns 33/l 346 \":,\0 356 366 385 394 405 407 411 412 414 423 426 428 428 429 429
429 442 449
459 464 471 473 473 473 474 479 484 485 485 487 491 492 494 496 496 496 496 497 497
501
2802. 2803. 2804.
Material Standards and Symbols ........... . Allowable Stresses for Members and Fasteners .. Design ... Fabrication and Erection ..
Part VI-Detailed Regulations
CHAPTER 29. Excavations, Foundations and Retaining Walls SEC. 290 I . Scope .
2902. Quality and Design 2903. Excavations and Fills. 2904. Soil Classification-Expansive Soil . 2905. Foundation Investigation . 2906. Allowable Foundation and Lateral Pressures ... 2907. Footings ... 2908. Piles-General Requirements . 2909. Specific Pile Requirements
CHAPTER 30. Veneer SEC. 3001.
3002. 3003. 3004. 3005. 3006. 3007.
Scope. Definitions . . ........... . Materials Design .. Adhered Veneer . Anchored Veneer . Plastic Veneer ...
CHAPTER 31. (No Requirements)
CHAPTER 32. Roof Construction and Covering SEC. 3 20 I . General. ...
3202. Roof Construction and Materials. 3203. Roof Coverings .. 3204. Roof Insulation 3205. Attics: Access, Draft Stops and Ventilation. 3206. Smoke and Heat Venting .......... . 3207. Roof Drainage 3208. Flashing.
CHAPTER 33. Exits SEC. 330 I . General.
3302. Occupant Load. 3303. Exits Required . 3304. Doors . . ....... . 3305. Corridors and Exterior Exit Balconies. 3306. Stairways . 3307. Ramps . 3308. Horizontal Exit. 3309. Stairway. Ramp and Escalator Enclosures.
Page
533 533 533 533 534 535 537
538 538 539 547 547 547 549 549
554 555 556 558 561 563 565 566 566
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3310. 3311. 3312. 3313. 3314. 3315. 3316. 3317. 3318. 3319. 3320. 3321. 3322. 3323. 3324.
Smokeproof Enclosures. Exit Courts ..... Exit Passageways .. Exit Illumination ................... . Exit Signs. . . . .......... . Aisles. Seat Spacing. Group A. Division I Occupancies. Group A. Divisions 2, 2.1, 3 and 4 Occupancies Group E Occupancies . . . . . . . ......... . Group H Occupancies ..................... . Group I Occupancies .... . Special Hazards . Reviewing Stands. Grandstands and Bleachers. Folding and Telescoping Seating .
CHAPTER 34. Skylights SEC. 3401.
3402. 3403. 3404. 3405. 3406.
Frame, Supports and Curbs. Glazing Materials. Screens ........................................ . Greenhouses. Floors and Sidewalks. Sloped Glazing ...
CHAPTER 35. Sound Transmission Control (See Appendix Chapter 35)
CHAPTER 36. Penthouses and Roof Structures SEC. 360 I. Penthouses and Roof Structures ..... .
3602. Towers and Spires ............... .
CHAPTER 37. Masonry or Concrete Chimneys, Fireplaces and Barbecues
SEC. 370 I. Scope . 3702. Definitions. 3703. Chimneys, General .. 3704. Masonry Chimneys 3705. Factory-built Chimneys. 3706. Metal Chimneys .... 3707. Fireplaces and Barbecues.
CHAPTER 38. Fire-extinguishing Systems SEC. 380 I. Scope . . .......... .
3802. Automatic Fire-extinguishing Systems .. . 3803. Sprinkler System Alarms. 3804. Permissible Sprinkler Omissions. 3805. Standpipes . . .......... . 3806. Buildings Under Construction . 3807. Basement Pipe Inlets .....
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Page
567 569 570 570 571 571 572 573 573 574 576 576 577 577 580
584 584 584 584 585 585
586 586
CHAPTER 39. Stages and Platforms SEC. 390 I . Scope . . . . . . . . .................... .
3902. Platforms .................................. . 3903. Stages ..................................... .
CHAPTER 40. Motion Picture Projection Rooms SEC. 400 I . General. .................................. .
4002. Construction... . . . . . . . . . . . ............ . 4003. Exits . . . . . ........................ . 4004. Projection Ports and Openings. . ................ . 4005. Ventilation . . . . . ......................... . 4006. Miscellaneous Equipment ................. . 4007. Sanitary Facilities ............................. .
CHAPTER 41. (See Uniform Building Security Code)
Part VII-Fire-resistive Standards for Fire Protection
CHAPTER 42. Interior Wall and Ceiling Finish SEC. 420 I. General. ...................................... .
4202. Testing and Classification of Materials .............. . 4203. Application of Controlled Interior Finish ............. . 4204. Maximum Allowable Flame Spread ............... .
CHAPTER 43. Fire-resistive Standards SEC. 4301. General. ........................... .
4302. Fire-resistive Materials and Systems ............... . 4303. Protection of Structural Members ........... . 4304. Walls and Partitions .............................. . 4305. Floor-Ceilings or Roof-Ceilings ..................... . 4306. Fire-resistive Assemblies for Protection of Openings ... . 4307. Roof Coverings ............................... .
Part VIII-Regulations for Use of Public Streets and Projections Over Public Property
CHAPTER 44. Protection of Pedestrians During Construction or Demolition
Page
608 608 609 609
611 611 612 613 614 615 617
SEC. 4401. General.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 658 4402. Temporary Use of Streets and Alleys. . . . . . . . . . . . . . . . . . . 658 4403. Storage on Public Property . . . . . . . . . . . . . . . . . . . . . . . . . . 658 4404. Mixing Mortar on Public Property . . . . . . . . . . . . . . . . . . . . 658 4405. Protection of Utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 658 4406. Walkway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 659 4407. Pedestrian Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 659 4408. Maintenance and Removal of Protective Devices . . . . . . . . . 660 4409. Demolition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 660
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Page
CHAPTER 45. Permanent Occupancy of Public Property SEC. 4501. General. . . . . . . .................... .
4502. Projection into Alleys .................. . 4503. Space Below Sidewalk. . . ............ . 4504. Balconies, Sun-control Devices and Appendages. 4505. Marquees. . . . . ........ . 4506. Awnings. . ........ . 4507. Doors . . . . ............ .
661 lib} o6/ bb\ 662 662 663
CHAPTER 46. (No Requirements)
Part IX-Wall and Ceiling Coverings
CHAPTER 47. Installation of Wall and Ceiling Coverings SEC. 4701. Scope.. . . . . . . . . . . . . . . . . . . . . . . . 664
4702. Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665 4703. Vertical Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665 4704. Horizontal Assemblies.............................. 666 4705. Interior Lath. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 666 4706. Exterior Lath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 667 4707. Interior Plaster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 668 4708. Exterior Plaster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669 4709. Exposed Aggregate Piaster . . . . . . . . . . . . . . . . . . . . 670 4710. Pneumatically Placed Plaster (Gunite).................. 671 4711. Gypsum Wallboard .. .. .. .. . .. .. .. .. .. .. .. .. .. .. . .. 671 4712. Softwood Plywood Paneling......................... 672 4713. Shear-resisting Construction with Wood Frame . . . . . . . . . . 672
Part X-Special Subjects
CHAPTER 49. (No Requirements) (See Page 751-Appendlx)
CHAPTER 50. Prefabricated Construction SEC. 5001.
5002. 5003. 5004. 5005. 5006.
General.. . .......... . Tests of Materials. . ........ . Tests of Assemblies . . ............ . Connections. . .......... . Pipes and Conduits ..... . Certificate and Inspection
CHAPTER 51. Elevators, Dumbwaiters, Escalators and Moving Walks
SEC. 5101. Scope .................................... . 5102. Elevator and Elevator Lobby Enclosures ... . 5103. Special Provisions . . . ....... .
xvl
687
690 6QO 690
Page
5104. Hoistway Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 693 5105. Elevator Machine Room Floors. . . . . . . . . . . . . . . . . . . . 694 5106. Additional Doors. . . . . . . . . . . . . . . . . . . . . . . 694
CHAPTER 52. Light-transmitting Plastics SEC. 5201. Scope... . . . . . . . . . . . . . 695
5202. Definitions. . . . . . . . . . . . . . . . . . . . . . . . . 695 5203. Design and Installation . . . . . . . . . . . . . . . . . . . 696 5204. Glazing of Unprotected Openings . . . . . . . . . . . . . . . . . 696 5205. Light-transmitting Exterior Wall Panels . . . . . . . 696 5206. Roof Panels . . . . . . . . . . . . . . . . . . . . . . . . 697 5207. Skylights . . 697 5208. Light-diffusing Systems . . . . 698 5209. Diffusers in Electrical Fixtures . . . . . . . . . . . . 699 5210. Partitions . . . . . . . . . . . . . . . 699 5211. Awnings and Patio Covers. . . . . . . . . . . . . . . . 699 5212. Greenhouses. . . . . . . . . . . . . . . . . . . . . 699 5213. Canopies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 699 5214. Solar Collectors................................... 699
CHAPTER 53. (See Appendix Chapter 53)
CHAPTER 54. SEC. 5401.
Glass and Glazing Scope .......................................... . Identification .................................... . Area Limitations ................................. . Glazing Support .................................. . Louvered Windows ............................... . Safety Glazing ................................... . Hinged Shower Doors ............................. .
CHAPTERS 55-59. (No Requirements)
CHAPTER 60. Uniform Building Code Standards SEC. 6001. Scope ............................... .
APPENDIX
CHAPTER 1. Division 1-Life Safety Requirements for Existing Buildings Other than High-rise Buildings
SEC. 110. General. .............................. . Ill. Exits ..................................... . 1\2. Enclosure of Vertical Shafts. 1 13. Basement Access or Sprinkler Protection ..... .
701 701 701 701 702 702 703
707
Standpipes . . . . ..................... . Smoke Detectors ................................ . Separation of Occupancies ..
CHAPTER 1. Division 11-Life Safety Requirements for Ex\st\n~ High-rise Buildings
SEC. 120. Scope .......................................... . 121. 122. 123. 124. 125.
General... . .................... . Compliance Data .. . Authority of the Building Official ... . Appeals Board .................. . Specific Provisions and Alternates ........... .
CHAPTER 7. Division !-Covered Mall Buildings SEC. 711.
712.
713. 714. 715.
General. ....... . Types of Construction and Required Yards for Unlimited Area. . .......... . Special Provisions .. . Exits .... Occupancy ..... .
CHAPTER 7. Division 11-Avlation Control Towers SEC. 716. General. ..
717. Construction, Height and Allowable Area ...... . 718. Exit Facilities. . ................. . 719. Fire Alarms . . . ............... . 720. Access for Handicapped .................. . 721. Standby Power and Emergency Generation Systems
CHAPTER 11. Agricultural Buildings SEC. 1107. Scope.... . .......... .
1108. Construction, Height and Allowable Area ... . I I 09. Occupancy Separations .. 1110. Exterior Walls and Openings ..... . 1111. Exit Facilities.
CHAPTER 12. Requirements for Group R, Division 3 Occupancies
Page
733
740 740 740 740 741
SEC. 1201. General..... 743 1202. One and Two Family Dwelling Code Adopted 743
CHAPTER 23. Division !-Alternate Snow Load Design SEC.
xvlil
2313. 2314. 2315. 2316. 2317. 2318.
General. Notations. . ....... . Sloped-roof Snow Loads ....................... . Unbalanced Roof Snow Loads .................... . Drifts on Multilevel Roofs .................... . Rain on Snow .......................... .
744 744 744 744 745 746
CHAPTER 23. Division 11-Earthquake Recording Instrumentation
SEC. 2320. General. 2321. 2322. 2324.
Location. Maintenance. . .. Instrumentation of Existing Buildings.
CHAPTER 32. Re-roofing SEC. 3209. General. ..................... .
3210. Inspections .... . 3211. Built-up Roofs .... . 3212. Shingles and Shakes. . . . . ........ .
CHAPTER 35. Sound Transmission Control SEC. 3501. Sound Transmission Control .
3502. Sound Transmission Control Systems .
CHAPTER 38. Basement Pipe Inlets SEC. 3807. Basement Pipe Inlets ................. .
CHAPTER 49. Patio Covers SEC. 490 I . Patio Covers Defined.
4902. Design Loads ..... 4903. Light and Ventilation ..... 4904. Footings ...
CHAPTER 51. Elevators, Dumbwaiters, Escalators and Moving Walks
SEC. 5107. 5108. 5109. 5110. 5111. 5112. 5113. 5114.
Purpose .......... . Scope.. . .. Definitions ................ . Permits--Certificates of Inspection .. ANSI Code Adopted ............ . Design ................... . Requirements for Operation and Maintenance Unsafe Conditions ......... .
CHAPTER 53. Energy Conservation In New Building Construction
SEC. 5 30 1 . General. ..
CHAPTER 55. Membrane Structures SEC. 5501. General. . . . . . . . . . . . . . . . . . . . . . . . . . ...... .
5502. Type of Construction and General Requirements .. 5503. Inflation Systems ................... . 5504. Section Provisions ................ . 5505. Engineering Design. . . ............. .
Page
757
xlx
Purpose Scope ... Definitions. Occupancy Requirements Exits. Flame-spread Index of Interior Surfaces ........... . Minimum Design Loads ............. . Sanitation. . .......... .
CHAPTER 70. Excavation and Grading SEC. 700I.
7002. 7003. 7004. 7005. 7006. 7007. 700R. 7009. 7010. 70 II. 7012. 7013. 7014. 7015.
Purpose .. Scope ......... . Permits Required .. Hazards Definitions ............ . Grading Permit Requirements. Grading Fees . . ........ . Bonds. . ....... . Cuts .............. . Fills Setbacks. Drainage and Terracing Erosion Control ........... . Grading Inspection .. Completion of Work ............. .
UNIT CONVERSION TABLES .
761 76I 761 761 762 762 762 762
763 763 763 763 764 765 766 76X 76R 76R 769 770 77I 771 773
774
778
EFFECTIVE USE OF THE UNIFORM BUILDING CODE
The following procedure may be helpful in using the Uniform Building Code:
I. Classify the building: A. OCCUPANCY GROUP: Determine the occupancy group which the
use of the building most nearly resembles. See the '0 I sections of Chapters 5 through 12. Sec Section 503 for buildings with mixed occupancies.
B. TYPE OF CONSTRUCTION: Determine the type of construction of the building by the building materials used and the fire resistance of the parts of the building. See Chapters 17 through 22.
C. LOCATION ON PROPERTY: Determine the location of the building on the site and clearances to property lines and other buildings from the plot plan. Sec Table No. 5-A and '03 sections of Chapters 18 through 22 for exterior wall and wall opening requirements based on proximity to property lines. Sec Section 504 for buildings located on the same site.
D. FLOOR AREA: Compute the floor area of the building. Sec Table No. 5-C for basic allowable floor area based on occupancy group and type of construction. See Section 506 for allowable increases based on location on property and installation of an approved automatic fire-sprinkler system. See Section 505 (b) for allowable floor area of multistory buildings.
E. HEIGHT AND NUMBER OF STORIES: Compute the height of the building, Section 409, from grade, Section 408, and for the number of stories, Section 420. See Table No. 5-D for the allowable height and number of stories based on occupancy group and type of construction. Sec Section 507 for allowable story increase based on the installation of an approved automatic fire-sprinkler system.
F. OCCUPANT LOAD: Compute the occupant load of the building. See Section 3302 and Table No. 33-A.
2. Verify compliance of the building with detailed occupancy requirements. See Chapters 6 through 12.
3. Verify compliance of the building with detailed type of construction re­ quirements. See Chapters 17 through 22.
4. Verify compliance of the building with exit requirements. See Chapter 33.
5. Verify compliance of the building with detailed code regulations. See Chapters 29 through 43, Chapters 47 through 54, and Appendix.
6. Verify compliance of building with engineering regulations and require­ ments for materials of construction. See Chapters 23 through 29.
The following is a sample form for adoption ofthe Uniform Building Code and Uniform Building Code Standards.
XXI
SAMPLE ORDINANCE FOR ADOPTION OF THE UNIFORM BUILDING CODE AND
UNIFORM BUILDING CODE STANDARDS
ORDINANCE NO. __
An ordinance of the (Jurisdiction) adopting the 1985 edition of the Uniform Building Code and the 1985 edition of the Uniform Building Code Standards regulating the erection, construction, enlargement, alteration, repair, moving, removal, demolition, conversion, occupancy, equipment, usc, height, area and maintenance of all buildings or structures in the (jurisdiction)
providing for the issuance of permits and collection of fees therefor; providing for penalties for the violation thereof, repealing Ordinance No. ___ of the
(Jurisdiction) and all other ordinances and parts of the ordinances in conflict therewith.
The _--....!!(g!!:oc:cv•::.rn:::ln"'g'-=b:.::.od=..Y"-) __ of the _--..!(~::ju::.:rls:::d:::lc:::tl=on::.!.) __ does ordain as follows:
Section 1. That certain documents, three (3) copies of which are on file and are open for inspection of the public in the office of the (jurisdiction's keeper of
records) of the (Jurisdiction) , being marked and designated as:
A. Uniform Building Code, 1985 Edition, published by the International Conference of Building Officials, including the generic fire-resistive assemblies listed in the Fire Resistance Design Manual, 198 I Edition, published by the Gypsum Association as referenced in Tables Nos. 43-A, 43-B and 43-C (also reference Appendix Chapter 35, if adopted) of the specified Uniform Building Code, including Appendix Chapters . [Fill in the applicable Appendix chapters (see Uniform Building Code Section 103, last paragraph).lfreference is made to Appendix Chapter 51, an additional reference to ANSIIASME Al7.1, 1981, Safety Code for Elevators and Escalators, should be added and three (3) copies of this code should also be on file (see Appendix Sections 5109 and 5111 )/, and
B. Uniform Building Code Standards, /985 Edition, published by the Interna­ tional Conference of Building Officials, including (i) Structural Welding Code­ Reinforcing Steel, AWS 01.4-79 (U.B.C. Standard No. 26-8); (ii) Structural Welding Code-Steel, ANSI/AWS Dl.l-84 (U.B.C. Standard No. 27-6); (iii) Structural Welding Code-Sheet Steel, ANSIIAWS 01.3-81 (U.B.C. Standard No. 27-16) published by the American Welding Society, Inc.; and (iv) Standard for the Installation of Sprinkler Systems, NFPA 13-1980, published by the National Fire Protection Association (U. B.C. Standard No. 38-1 ), as modified or amended in the Uniform Building Code Standards referenced herein; be and the same are hereby adopted as the code of the (Jurisdiction) for regulating the erection. construction, enlargement, alteration, repair, moving, removal, demoli­ tion, conversion, occupancy, equipment, use, height, area and maintenance of all buildings or structures in the (jurisdiction) providing for issuance of permits and collection of fees therefor; and each and all of the regulations, provisions. conditions and terms of such Uniform Building Code, 1985 Edition,
xxll
and Uniform Building Code Standards, 1985 Edition, published by the Interna­ tional Conference of Building Officials, and the secondary publications refer­ enced above, all of which are on file in the office of the (Jurisdiction) are hereby referred to, adopted and made a part hereof as if fully set out in this ordinance.
Section 2. (Incorporate penalties for violations. See Section 205).
Section 3. That Ordinance No. of (Jurisdiction) entitled (fill in the title of building ordinance or ordinances in effect at the present time) and all other ordinances or parts of ordinances in conflict herewith are hereby repealed.
Section 4. That if any section, subsection, sentence, clause or phrase of this ordinance is, for any reason. held to be invalid or unconstitutional, such decision shall not affect the validity or constitutionality of the remaining portions of this ordinance. The (governing body) hereby declares that it would have passed this ordinance, and each section, subsection, clause or phrase hereof, irrespective of the fact that any one or more sections, subsections, sentences, clauses and phrases be declared unconstitutional.
Section 5. That the (Jurisdiction's keeper of records) is hereby ordered and directed to cause this ordinance to be published. (An additional provision may be required to direct the number of times the ordinance is to be published and to specify that it is to be in a new.1paper in general circulation. Posting may also he required.)
Section 6. That this ordinance and the rules, regulations, provisions, require­ ments, orders and matters established and adopted hereby shall take effect and be in full force and effect (time period) from and after the date of its final passage and adoption.
xxlii
TITLE, SCOPE AND GENERAL Title
Sec. 101. These regulations shall be known as the "Uniform Building Code," may be cited as such and will be referred to herein as "this code."
Purpose Sec. 102. The purpose of this code is to provide minimum standards to
safeguard life or limb, health, property and public welfare by regulating and controlling the design, construction, quality of materials, use and occupancy, location and maintenance of all buildings and structures within this jurisdiction and certain equipment specifically regulated herein.
Scope Sec. 103. The provisions of this code shall apply to the construction, alteration,
moving, demolition, repair and use of any building or structure within this jurisdiction, except work located primarily in a public way, public utility towers and poles, mechanical equipment not specifically regulated in this code, and hydraulic flood control structures.
Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable.
Wherever in this code reference is made to the appendix, the provisions in the appendix shall not apply unless specifically adopted.
Application to Existing Buildings and Structures Sec. 104. (a) General. Buildings and structures to which additions. alterations
or repairs arc made shall comply with all the requirements of this code for new facilities except as specifically provided in this section. See Section 1210 for provisions requiring installation of smoke detectors in existing Group R, Division 3 Occupancies.
(b) Additions, Alterations or Repairs. Additions, alterations or repairs may be made to any building or structure without requiring the existing building or structure to comply with all the requirements of this code. provided the addition. alteration or repair conforms to that required for a new building or structure. Additions or alterations shall not be made to an existing building or structure which will cause the existing building or structure to be in violation of any of the provisions of this code nor shall such additions or alterations cause the existing building or structure to become unsafe. An unsafe condition shall be deemed to have been created if an addition or alteration will cause the existing building or
104 UNIFORM BUILDING CODE
structure to become structurally unsafe or overloaded; will not provide adequate egress in compliance with the provisions of this code or will obstruct existing exits; will create a fire hazard; will reduce required fire resistance or will other­ wise create conditions dangerous to human life. Any building so altered, which involves a change in use or occupancy, shall not exceed the height, number of stories and area permitted for new buildings. Any building plus new additions shall not exceed the height, number of stories and area specified for new build­ ings. Additions or alterations shall not be made to an existing building or structure when such existing building or structure is not in full compliance with the provisions of this code except when such addition or alteration will result in the existing building or structure being no more hazardous based on life safety, fire safety and sanitation, than before such additions or alterations arc undertaken. [See also Section 911 (c) for Group H, Division 6 Occupancies.]
Alterations or repairs to an existing building or structure which are nonstruc­ tural and do not adversely affect any structural member or any part of the building or structure having required fire resistance may be made with the same materials of which the building or structure is constructed. The installation or replacement of glass shall be as required for new installations.
(c) Existing Installations. Buildings in existence at the time of the adoption of this code may have their existing use or occupancy continued, if such use or occupancy was legal at the time of the adoption of this code, provided such continued usc is not dangerous to life.
Any change in the use or occupancy of any existing building or structure shall comply with the provisions of Sections 307 and 502 of this code.
For existing buildings, see Appendix Chapter I.
(d) Maintenance. All buildings and structures, both existing and new. and all parts thereof, shall be maintained in a safe and sanitary condition. All devices or safeguards which are required by this code shall be maintained in conformance with the code edition under which installed. The owner or his designated agent shall be responsible for the maintenance of buildings and structures. To determine compliance with this subsection, the building official may cause any structure to be reinspected.
(c) Moved Buildings and Temporary Buildings. Buildings or structures moved into or within the jurisdiction shall comply with the provisions of this code for new buildings or structures.
Temporary structures such as reviewing stands and other miscellaneous struc­ tures, sheds, canopies or fences used for the protection ofthe public around and in conjunction with construction work may be erected by special permit from the building official for a limited period of time. Such buildings or structures need not comply with the type of construction or fire-resistive time periods required by this code. Temporary buildings or structures shall be completely removed upon the expiration of the time limit stated in the permit.
(f) Historic Buildings. Repairs, alterations and additions necessary for the preservation, restoration. rehabilitation or continued use of a building or structure may be made without conformance to all the requirements of this code when authorized by the building official, provided:
2
1985 EDITION 104-107
I . The building or structure has been designated by official action of the legally constituted authority of this jurisdiction as having special historical or architectural significance.
2. Any unsafe conditions as described in this code are corrected.
3. The restored building or structure will be no more hazardous based on life safety, fire safety and sanitation than the existing building.
Alternate Materials and Methods of Construction Sec. 105. The provisions of this code are not intended to prevent the usc of any
material or method of construction not specifically prescribed by this code, provided any alternate has been approved and its use authorized by the building official.
The building official may approve any such alternate, provided he finds that the proposed design is satisfactory and complies with the provisions of this code and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in suitability, strength, effectiveness, fire resistance, durability, safety and sanitation.
The building official shall require that sufficient evidence or proof be submit­ ted to substantiate any claims that may be made regarding its use. The details of any action granting approval of an alternate shall be recorded and entered in the files of the code enforcement agency.
Modifications Sec. 106. Whenever there are practical difficulties involved in carrying out the
provisions of this code, the building official may grant modifications for individ­ ual cases, provided he shall first find that a special individual reason makes the strict letter of this code impractical and that the modification is in conformity with the intent and purpose of this code and that such modification does not lessen any fire protection requirements or any degree of structural integrity. The details of any action granting modifications shall be recorded and entered in the files of the code enforcement agency.
Tests Sec. 107. Whenever there is insufficient evidence of compliance with any of
the provisions of this code or evidence that any material or construction does not conform to the requirements of this code, the building official may require tests as proof of compliance to be made at no expense to this jurisdiction.
Test methods shall be as specified by this code or by other recognized test standards. If there arc no recognized and accepted test methods for the proposed alternate, the building official shall determine test procedures.
All tests shall be made by an approved agency. Reports of such tests shall be retained by the building official for the period required for the retention of public records.
3
Chapter 2
ORGANIZATION AND ENFORCEMENT Creation of Enforcement Agency
Sec. 201. There is hereby established in this jurisdiction a code enfon:cmcnr agency which shall be under the administrative and operational contra' of the building official.
Powers and Duties of Building Official Sec. 202. (a) General. The building official is hereby authorized and directed
to enforce all the provisions of this code. For such purposes, he shall have the powers of a law enforcement officer.
(b) Deputies. In accordance with prescribed procedures and with the approval of the appointing authority, the building official may appoint such number of technical officers and inspectors and other employees as shall be authorized from time to time. He may deputize such inspectors or employees as may be necessary to carry out the functions of the code enforcement agency.
(c) Right of Entry. Whenever necessary to make an inspection to enforce any of the provisions of this code, or whenever the building official or his authorized representative has reasonable cause to believe that there exists in any building or upon any premises any condition or code violation which makes such building or premises unsafe, dangerous or hazardous, the building official or his authorized representative may enter such building or premises at all reasonable times to inspect the same or to perform any duty imposed upon the building official by this code, provided that if such building or premises be occupied, he shall first present proper credentials and request entry; and if such building or premises be unoccu­ pied, he shall first make a reasonable effort to locate the owner or other persons having charge or control of the building or premises and request entry. If such entry is refused, the building official or his authorized representative shall have recourse to every remedy provided by law to secure entry .
(d) Stop Orders. Whenever any work is being done contrary to the provisions of this code, the building official may order the work stopped by notice in writing served on any persons engaged in the doing or causing such work to be done, and any such persons shall forthwith stop such work until authorized by the building official to proceed with the work.
(e) Occupancy Violations. Whenever any building or structure or equipment therein regulated by this code is being used contrary to the provisions of this code, the building official may order such use discontinued and the structure, or portion thereof, vacated by notice served on any person causing such use to be continued. Such person shall discontinue the use within the time prescribed by the building official after receipt of such notice to make the structure, or portion thereof, comply with the requirements of this code.
(f) Liability. The building official, or his authorized representative charged with the enforcement of this code, acting in good faith and without malice in the discharge of his duties, shall not thereby render himself personally liable for any
4
1985 EDITION 202-204
damage that may accrue to persons or property as a result of any act or by reason of any act or omission in the discharge of his duties. Any suit brought against the building official or employee because of such act or omission performed by him in the enforcement of any provision of such codes shall be defended by this jurisdic­ tion until final termination of such proceedings, and any judgment resulting therefrom shall be assumed by this jurisdiction.
This code shall not be construed to relieve from or lessen the responsibility of any person owning, operating or controlling any building or structure for any damages to persons or property caused by defects. nor shall the code enforcement agency or its parent jurisdiction be held as assuming any such liability by reason of the inspections authorized by this code or any certificates of inspection issued under this code.
(g) Cooperation of Other Officials and Officers. The building official may request, and shall receive so far as is required in the discharge of his duties, the assistance and cooperation of other officials of this jurisdiction.
Unsafe Buildings or Structures Sec. 203. All buildings or structures regulated by this code which arc structur­
ally unsafe or not provided with adequate egress. or which constitute a fire hazard. or arc otherwise dangerous to human life arc, for the purpose of this section, unsafe. Any use of buildings or structures constituting a hazard to safety, health or public welfare by reason of inadequate maintenance, dilapidation, obsolescence, fire hazard, disaster, damage or abandonment is, for the purpose of this section, an unsafe use. Parapet walls, cornices. spires, towers, tanks, statuary and other appendages or structural members which are supported by, attached to, or a part of a building and which are in deteriorated condition or otherwise unable to sustain the design loads which are specified in this code are hereby designated as unsafe building appendages.
All such unsafe buildings, structures or appendages arc hereby declared to be public nuisances and shall be abated by repair. rehabilitation, demolition or removal in accordance with the procedures set forth in the Dangerous Buildings Code or such alternate procedures, as may have been or as may be adopted by this jurisdiction. As an alternative, the building official. or other employee or official of this jurisdiction as designated by the governing body. may institute any other appropriate action to prevent, restrain. correct or abate the violation.
Board of Appeals Sec. 204. In order to determine the suitability of alternate materials and
methods of construction and to provide for reasonable interpretations of this code, there shall be and is hereby created a Board of Appeals consisting of members who arc qualified by experience and training to pass upon matters pertaining to building construction and who arc not employees of the jurisdiction. The building official shall be an ex officio member of and shall act as secretary to said board. The Board of Appeals shall be appointed by the governing body and shall hold office at its pleasure. The board shall adopt rules of procedure for conducting its business and shall render all decisions and findings in writing to the appellant with a duplicate copy to the building official.
5
205 UNIFORM BUILDING CODE
VIolations Sec. 205. 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 or cause or permit the same to be done in violation of this code.
6
Chapter 3 PERMITS AND INSPECTIONS
Permits Sec. 301. (a) Permits Required. Except as specified in Subsection (b) of this
section, no building or structure regulated by this code shall be erected, con­ structed, enlarged, altered, repaired, moved, improved, removed, converted or demolished unless a separate permit for each building or structure has first been obtained from the building official.
(b) Exempted Work. A building permit shall not be required for the following:
I. One-story detached accessory buildings used as tool and storage sheds, playhouses and similar uses, provided the projected roof area docs not exceed 120 square feet.
2. Fences not over 6 feet high.
3. Oil derricks.
4. Movable cases, counters and partitions not over 5 feet high.
5. Retaining walls which are not over 4 feet in height measured from the bottom ofthe footing to the top of the wall, unless supporting a surcharge or impounding flammable liquids.
6. Water tanks supported directly upon grade if the capacity docs not exceed 5000 gallons and the ratio of height to diameter or width docs not exceed two toone.
7. Platforms, walks and driveways not more than 30 inches above grade and not over any basement or story below.
8. Painting, papering and similar finish work.
9. Temporary motion picture, television and theater stage sets and scenery.
10. Window awnings supported by an exterior wall of Group R, Division 3, and Group M Occupancies when projecting not more than 54 inches.
II. Prefabricated swimming pools accessory to a Group R, Division 3 Occu­ pancy in which the pool walls arc entirely above the adjacent grade and if the capacity does not exceed 5000 gallons.
Unless otherwise exempted, separate plumbing, electrical and mechanical permits will be required for the above exempted items.
Exemption from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction.
Application for Permit Sec. 302. (a) Application. To obtain a permit, the applicant shall first file an
application therefor in writing on a form furnished by the code enforcement agency for that purpose. Every such application shall:
I. Identify and describe the work to be covered by the permit for which application is made.
7
302-303 UNIFORM BUILDING CODE
2. Describe the land on which the proposed work is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed building or work.
3. Indicate the use or occupancy for which the proposed work is intended. 4. Be accompanied by plans, diagrams, computations and specifications and
other data as required in Subsection (b) of this section. 5. State the valuation of any new building or structure or any addition, remodel­
ing or alteration to an existing building. 6. Be signed by the permittee, or his authorized agent. 7. Give such other data and information as may be required by the building
official.
(b) Plans and Specifications. Plans, engineering calculations, diagrams and other data shall be submitted in one or more sets with each application for a permit. The building official may require plans, computations and specifications to be prepared and designed by an engineer or architect licensed by the state to practice as such.
EXCEPTION: The building official may waive the submission of plans, calcu­ lations, etc., if he finds that the nature of the work applied for is such that reviewing of plans is not necessary to obtain compliance with this code.
(c) Information on Plans and Specifications. Plans and specifications shall be drawn to scale upon substantial paper or cloth and shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in detail that it will conform to the provisions of this code and all relevant laws, ordi­ nances, rules and regulations.
Plans for buildings more than two stories in height of other than Groups R, Division 3 and M Occupancies shall indicate how required structural and fire­ resistive integrity will be maintained where a penetration will be made for electrical, mechanical, plumbing and communication conduits, pipes and similar systems.
Permits Issuance Sec. 303. (a) Issuance. The application, plans, specifications, computations
and other data filed by an applicant for permit shall be reviewed by the building official. Such plans may be reviewed by other departments of this jurisdiction to verify compliance with any applicable laws under their jurisdiction. If the build­ ing official finds that the work described in an application for a permit and the plans, specifications and other data filed therewith conform to the requirements of this code and other pertinent laws and ordinances, and that the fees specified in Section 304 have been paid, he shall issue a permit therefor to the applicant.
When the building official issues the permit where plans are required, he shall endorse in writing or stamp the plans and specifications "APPROVED." Such approved plans and specifications shall not be changed, modified or altered without authorizations from the building official, and all work shall be done in accordance with the approved plans.
The building official may issue a permit for the construction of part of a building or structure before the entire plans and specifications for the whole
8
1985 EDITION 303
building or structure have been submitted or approved, provided adequate infor­ mation and detailed statements have been filed complying with all pertinent requirements of this code. The holder of such permit shall proceed at his own risk without assurance that the permit for the entire building or structure will be granted.
(b) Retention of Plans. One set of approved plans, specifications and compu­ tations shall be retained by the building official for a period of not less than 90 days from date of completion of the work covered therein; and one set of approved plans and specifications shall be returned to the applicant, and said set shall be kept on the site of the building or work at all times during which the work authorized thereby is in progress.
(c) Validity of Permit. The issuance or granting of a permit or approval of plans, specifications and computations shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. No permit presuming to give authority to violate or cancel the provisions of this code shall be valid.
The issuance of a permit based upon plans, specifications and other data shall not prevent the building official from thereafter requiring the correction of errors in said plans, specifications and other data, or from preventing building opera­ tions being carried on thereunder when in violation of this code or of any other ordinances of this jurisdiction.
(d) Expiration. Every permit issued by the building official under the provi­ sions of this code shall expire by limitation and become null and void if the building or work authorized by such permit is not commenced within 180 days from the date of such permit, or if the building or work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of 180 days. Before such work can be recommenced, a new permit shall be first obtained so to do, and the fee therefor 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 full permit fee.
Any permittee holding an unexpired permit may apply for an extension of the time within which he may commence work under that permit when he is unable to commence work within the time required by this section for good and satisfactory reasons. The building official may extend the time for action by the permittee for a period not exceeding 180 days upon written request by the permittee showing that circumstances beyond the control of the permittee have prevented action from being taken. No permit shall be extended more than once.
(e) Suspension or Revocation. The building official may, in writing, suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect information supplied, or in violation of any ordinance or regulation or any of the provisions of this code.
9
304 UNIFORM BUILDING CODE
Fees Sec. 304. (a) General. Fees shall be assessed in accordance with the provisions
of this section or shall be as set forth in the fee schedule adopted by the jurisdic­ tion.
(b) Permit Fees. The fcc for each permit shall be as set forth in Table No. 3-A. The determination of value or valuation under any of the provisions of this code
shall be made by the building official. The value to be used in computing the building permit and building plan review fees shall be the total value of all construction work for which the permit is issued as well as all finish work. painting, roofing. electrical, plumbing. heating, air conditioning, elevators. fire­ extinguishing systems and any other permanent equipment.
(c) Plan Review Fees. When a plan or other data are required to be submitted by Subsection (b) of Section 302, a plan review fee shall be paid at the time of submitting plans and specifications for review. Said plan review fee shall be 65 percent of the building permit fee as shown in Table No. 3-A.
Where plans are incomplete or changed so as to require additional plan review, an additional plan review fee shall be charged at the rate shown in Table No. 3-A.
(d) Expiration of Plan Review. Applications for which no permit is issued within 180 days following the date of application shall expire by limitation, and plans and other data submitted for review may thereafter be returned to the applicant or destroyed by the building official. The building official may extend the time for action by the applicant for a period not exceeding 180 days upon request by the applicant showing that circumstances beyond the control of the applicant have prevented action from being taken. No application shall be ex­ tended more than once. In order to renew action on an application after expiration, the applicant shall resubmit plans and pay a new plan review fee.
(c) Investigation Fees: Work Without a Permit. I. Investigation. Whenever any work for which a permit is required by this code has been commenced without first obtaining said permit. a special investigation shall be made before a permit may be issued for such work.
2. Fee. An investigation fee. in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. The investigation fee shall be equal to the amount of the permit fee required by this code. The minimum investigation fee shall be the same as the minimum fee set forth in Table No. 3-A. The payment of such investigation fcc shall not exempt any person from compli­ ance with all other provisions of this code nor from any penalty prescribed by law.
(f) Fee Refunds. I. The building official may authorize the refunding of any fcc paid hereunder which was erroneously paid or collected.
2. The building official may authorize the refunding of not more than 80 percent of the permit fee paid when no work has been done under a permit issued in accordance with this code.
3. The building official may authorize the refunding of not more than 80 percent of the plan review fee paid when an application for a permit for which a plan review fee has been paid is withdrawn or canceled before any plan reviewing is done.
10
1985 EDITION 304-305
The building official shall not authorize the refunding of any fee paid except upon written application filed by the original permittee not later than 180 days after the date of fee payment.
Inspections Sec. 305. (a) General. All construction or work for which a permit is required
shall be subject to inspection by the building official, and certain types of construction shall have continuous inspection by special inspectors as specified in Section 306.
A survey of the lot may be required by the building official to verify that the structure is located in accordance with the approved plans. It shall be the duty of the permit applicant to cause the work to be accessible and exposed for inspection purposes. Neither the building official nor the jurisdiction shall be liable for expense entailed in the removal or replacement of any material required to allow inspection.
(b) Inspection Requests. It shall be the duty of the person doing the work authorized by a permit to notify the building official that such work is ready for inspection. The building official may require that every request for inspection be filed at least one working day before such inspection is desired. Such request may be in writing or by telephone at the option of the building official.
It shall be the duty of the person requesting any inspections required by this code to provide access to and means for proper inspection of such work.
(c) Inspection Record Card. Work requiring a permit shall not be commenced until the permit holder or his agent shall have posted an inspection record card in a conspicuous place on the premises and in such position as to allow the building official conveniently to make the required entries thereon regarding inspection of the work. This card shall be maintained in such position by the permit holder until final approval has been granted by the building official.
(d) Approval Required. Work shall not be done on any part of the building or structure beyond the point indicated in each successive inspection without first obtaining the approval of the building official. Such approval shall be given only after an inspection has been made on each successive step in the construction as indicated by each of the inspections required in Subsection (e).
There shall be a final inspection and approval on all buildings and structures when completed and ready for occupancy or use.
(e) Required Inspections. Reinforcing steel or structural framework of any part of any building or structure shall not be covered or concealed without first obtaining the approval of the building official.
The building official, upon notification from the permit holder or his agent, shall make the following inspections and shall either approve that portion of the construction as completed or shall notify the permit holder or his agent wherein the same fails to comply with this code:
I. FOUNDATION INSPECTION: To be made after excavations for footings are complete and any required reinforcing steel is in place. For concrete founda­ tions, any required forms shall be in place prior to inspection. All materials for the
11
305-306 UNIFORM BUILDING CODE
foundation shall be on the job, except where concrete is ready mixed in accord­ ance with U .B.C. Standard No. 26-13, the concrete need not be on the job. Where the foundation is to be constructed of approved treated wood, additional inspec­ tions may be required by the building official.
2. CONCRETE SLAB OR UNDER-FLOOR INSPECTION: To be made after all in-slab or under-floor building service equipment, conduit. piping a en·,_ sorics and other ancillary equipment items arc in place but before any concrete\~ placed or floor sheathing installed, including the subfloor.
3. FRAME INSPECTION: To be made after the roof, all framing. fire blocking and bracing are in place and all pipes, chimneys and vents are complete and the rough electrical, plumbing. and heating wires, pipes and ducts arc approved.
4. LATH AND/OR GYPSUM BOARD INSPECTION: To be made after all lathing and gypsum board, interior and exterior, is in place but before any plastering is applied or before gypsum board joints and fasteners are taped and finished.
5. FINAL INSPECTION: To be made after finish grading and the building is completed and ready for occupancy.
(f) Other Inspections. In addition to the called inspections specified above. the building official may make or require other inspections of any construction work to ascertain compliance with the provisions of this code and other laws which arc enforced by the code enforcement agency.
(g) Reinspections. A reinspcction fee may be assessed for each inspection or reinspcction when such portion of work for which inspection is called is not complete or when corrections called for are not made.
This subsection is not to be interpreted as requiring rcinspection 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 rcinspection.
Rcinspection fees may be assessed when the permit card is not properly posted 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.
To obtain a reinspcction, the applicant shall file an application therefor in writing upon a form furnished for that purpose and pay the rcinspcction fcc in accordance with Table No. 3-A or as set forth in the fee schedule adopted by the jurisdiction.
In instances where reinspection fees have been assessed, no additional inspec­ tion of the work will be performed until the required fees have been paid.
Special Inspections Sec. 306. (a) General. In addition to the inspections required by Section 305,
the owner shall employ a special inspector during construction on the following types of work:
12
1985 EDITION 306
I. CONCRETE: During the taking of test specimens and placing of all reinforced concrete and pneumatically placed concrete:
EXCEPTIONS: I. Concrete for foundations conforming to minimum require­ ments of Table No. 29-A or for Group R, Division 3 or Group M, Division I Occupancies, provided the building official finds that a special hazard does not
exist. 2. For foundation concrete when the structural design is based on af,. no greater
than 2000 psi. 3. Nonstructural slabs on grade, including prestressed slabs on grade when
effective prestress in concrete is less than 150 pounds per square inch. 4. Site work concrete full-supported on earth and concrete where no special
hazard exists.
2. DUCTILE MOMENT-RESISTING CONCRETE FRAME: As required by Section 2625 (j) of this code.
3. REINFORCING STEEL AND PRESTRESSING STEEL: A. During all stressing and grouting of prestressed concrete.
B. During placing of reinforcing steel, placing of tendons and prestressing steel for all concrete required to have special inspection by Item No. I.
EXCEPTION: The special inspector need not be present during entire reinforc­ ing steel- and prestressing steel-placing operations, provided he has inspected for conformance with the approved plans, prior to the closing of forms or the delivery of concrete to the jobsite.
4. WELDING: A. Ductile moment-resisting steel frames. As required by Section 2722 (f) of this code.
B. All structural welding, including welding of reinforcing steel. EXCEPTIONS: I. When welding is done in an approved fabricator's shop. 2. When approved by the building official. single-pass fillet welds when stressed
to less than 50 percent of allowable stresses and floor and roof deck welding and welded studs when used for structural diaphragm or composite systems may have periodic inspections in accordance with Section 306 (e) of this code. For periodic inspection, the inspector shall check qualifications of welders at the start of work and then make final inspection of all welds for compliance prior to completion of welding.
5. HIGH-STRENGTH BOLTING: During all bolt installations and tighten­ ing operations.
EXCEPTIONS: I . The special inspector need not be present during the entire installation and tightening operation, provided he has:
til Inspected the surfaces and bolt type for conformance to plans and specifica­ tions prior to start of bolting.
(ii) And will. upon completion of all bolting, verify the minimum specified bolt tension for I 0 percent of the bolts for each connection with a minimum of two bolts per connection.
2. In bearing-type connections when threads are not required by design to be excluded from the shear plane, inspection prior to or during installation will not be required.
6. STRUCTURAL MASONRY: During preparation of masonry wall prisms, sampling and placing of all masonry units, placement of reinforcement, inspec-
13
306 UNIFORM BUILDING CODE
tion of grout space, immediately prior to closing of cleanouts, and during all grouting operations.
EXCEPTION: Special inspection need not be provided when design stresses have been adjusted to permit noncontinuous inspection.
7. REINFORCED GYPSUM CONCRETE: When cast-in-place Chiss B gypsum concrete is being mixed and placed.
8. INSULATING CONCRETE FILL: During the application of insulating concrete fill when used as part of a structural system.
EXCEPTION: The special inspections may be limited to an initial inspection to check the deck surface and placement of reinforcing. The special inspector shall supervise the preparation of compression test specimens during this initial inspec­ tion.
9. SPRAY-APPLIED FIREPROOFING: As required by U.B.C. Standard No. 43-8.
I 0. PILING, DRILLED PIERS AND CAISSONS: During driving and testing of piles and construction of cast-in-place drilled piles or caissons. See Items Nos. I and 3 for concrete and reinforcing steel inspection.
II. SPECIAL GRADING, EXCAVATION AND FILLING: During earth­ work excavations, grading and filling operations inspection to satisfy require­ ments of Chapter 29 and Chapter 70 (Appendix) of this code.
12. SPECIAL CASES: Work which, in the opinion of the building official, involves unusual hazards.
(b) Special Inspector. The special inspector shall be a qualified person who shall demonstrate his competence, to the satisfaction of the building official, for inspection of the particular type of construction or operation requiring special inspection.
(c) Duties and Responsibilities of the Special Inspector. I. The special inspector shall observe the work assigned for conformance with the approved design drawings and specifications.
2. The special inspector shall furnish inspection reports to the building official, the engineer or architect of record, and other designated persons. All discrepan­ cies shall be brought to the immediate attention of the contractor for correction, then, if uncorrected, to the proper design authority and to the building official.
3. The special inspector shall submit a final signed report stating whether the work requiring special inspection was, to the best of his knowledge, in conform­ ance with the approved plans and specifications and the applicable workmanship provision of this code.
(d) Waiver of Special Inspection. The building official may waive the require­ ment for the employment of a special inspector if he finds that the construction is of minor nature.
(e) Periodic Special Inspection. Some inspections may be made on a periodic basis and satisfy the requirements of continuous inspection, provided this peri­ odic scheduled inspection is performed as outlined in the project plans and specifications and approved by the building official.
14
1985 EDITION 306-307
(f) Approved l<'abricators. Special inspections required by this section and elsewhere in this code shall not be required where the work is done on the premises of a fabricator registered and approved by the building official to perform such work without special inspection. The certificate of registration shall be subject to revocation by the building official if it is found that any work done pursuant to the approval is in violation of this code. The approved fabricator shall submit a Certificate of Compliance that the work was performed in accordance with the approved plans and specifications to the building official and to the engineer or architect of record. The approved fabricator's quali