CABO: One and Two Family Dwelling Code

451 Pages·1992·15.3 MB·English

by  Council of American Building Officials

By Authority Of
THE UNITED STATES OF AMERICA
Legally Binding Document
By the Authority Vested By Part 5 of the United States Code § 552(a) and
Part 1 of the Code of Regulations § 51 the attached document has been duly
INCORPORATED BY REFERENCE and shall be considered legally
binding upon all citizens and residents of the United States of America.
HEED THIS NOTICE: Criminal penalties may apply for noncompliance.
e
Document Name:
CFR Section(s):
Standards Body:
Official Incorporator:
THE EXECUTIVE DIRECTOR
OFFICE OF THE FEDERAL REGISTER
WASHINGTON, D.C.

CABO
ONE AND TWO FAMILY
DWELLING CODE
1992 EDITION
FIFTH PRINTING
UNDER THE
NATIONAllY RECOGNIZED MODEL CODES
BOCA National Building Code
BUILDING OFFICIALS AND CODE ADMINISTRATORS INTERNATIONAL, INC.
(BOCA)
4051 West Flossmoor Road
Country Club Hills, Illinois 60478-5795
Uniform Building Code
INTERNATIONAL CONFERENCE OF BUILDING OFFICIALS (ICBO)
5360 South Workman Mill Road
Whittier, California 90601
Standard Building Code
SOUTHERN BUILDING CODE CONGRESS INTERNATIONAL, INC. (SBCCI)
900 Montclair Road
Birmingham, Alabama 35213-1206
COPYRIGHT 1992
by
The Council of American Building Officials
5203 LEESBURG PIKE" FALLS CHURCH, VIRGINIA 22041
PRINTED IN THE U.S.A.
PREFACE
The purpose of this code is to provide minimum requirements to safeguard life
or limb, health, and public welfare and the protection of property as it relates to
these safeguards by regulating and controlling the design, construction,
prefabrication, equipment or appliance installation, quality of materials, use and
occupancy location and repair of detached one-or two-family dwellings, not more
than three stories in height. Also the purpose is to further standardize requirements
by using a compilation of data from the following national model codes:
BUILDING
BOCA National Building Code
Standard Building Code
Uniform Building Code
PLUMBING
BOCA National Plumbing Code
Standard Plumbing Code
Uniform Plumbing Code
MECHANICAL
BOCA National Mechanical Code
Code for the Installation of Heat-Producing Appliances
Standard Gas Code
Standard Mechanical Code
Uniform Mechanical Code
ELECTRICAL
National Electrical Code
This code is dedicated to the development of better building construction and
greater safety to the public and unifonnity in building laws; to the granting of full
justice to all building materials on a fair basis of the true merits of each material;
and to development on a sound economic basis for the future growth of our urban
areas through unbiased and equitable dealing with building construction.
All of the nationally recognized model codes upon which this code is based are
comprehensive and flexible and make provision for the use of all safe materials or
methods of construction. Consequently, there are construction materials and
practices other than listed in this code which are adequate for the purposes
intended. These other methods represent either seldom-used systems or
performance-type systems which require individual consideration by the
professional architect or engineer based on either test data or engineering analysis
and are therefore not included herein. The construction methods covered in this
code are time tested and therefore do not need additional substantiating data to
justify their adequacy.
Vertical lines in the margins indicate changes from the 1989 edition except
where the entire chapter was revised, a new chapter was added or the change was
minor. Where an entire chapter was changed or a new chapter was added, a
notation appears at the beginning of that chapter.
Asterisks (*) in the margins indicate locations from which the 1989 edition text
has either been deleted or relocated.
Certain editorial enhancements have been included in this edition. Most
notably, tables and figures have been relocated to follow the primary section in
which the tables and figures are referenced.
ADOPTING ORDINANCE
CABO ONE AND TWO FAMILY DWELLING CODE
ORDINANCE NO. _____
An ordinance regulating the fabrication, erection, construction,
enlargement, alteration, repair, location and use of detached one-and two
family dwellings, their appurtenances and accessory structures in the
jurisdiction of ; and providing for the issuance of permits
therefore providing penalties for the violation thereof, and repealing all
ordinances and parts of ordinances in conflict therewith.
Be it ordained by the __________________
of the jurisdiction of ___________________
as follows:
iv
CONTENTS
Part 1-Administrative
CHAPTER 1 - ADMINISTRATIVE
Section Page
R-IOJ Title ................................................................................. I
R-I02 Purpose ........................................................................... .
R-I03 Scope .............................................................................. .
R-I04 Authority ........................................................................ .
R-105 Entry ............................................................................... .
R-106 Violations and Penalties ................................................. .
R-107 Right of Appeal ............................................................... 2
R-108 Alternate Materials and Systems ................ ..... ....... ......... 2
R-109 Liability... ......... .......... ..... ........... ........ .... ........... ..... .... ..... 3
R-11O Permit .............................................................................. 3
R-I II Plans ................................................................................ 4
R-112 Inspection ......... ........... .... ............... ....... ................. ......... 4
R-I13 Prefabricated Construction ........... ....... ...... ..... ........ ......... 5
R-114 Barriers for Swimming Pools, Spas and Hot Tubs ......... 5
R-115 Inspection Card ..... ..................... ......... .... ......... ..... .......... 5
R-116 Existing Installations ........ ........... .... ............... ..... ............ 5
R-117 Stop Work Order ............................................................. 5
R-118 Definitions .... .... ........ ......... ... ...... ............... ............. ......... 6
Part /I - Building Planning
CHAPTER 2 - BUILDING PLANNING
Section
R-2OI Design Criteria . ...... ..... .... ................. ......... ..... .......... ....... 9
R-202 Location on Lot ..... ..................... ........... ............... ...... .... 10
R-203 Light, Ventilation and Heating ....................................... II
R-204 Room Sizes ....... ............. ........... ............... ......... .... ......... II
R-205 Ceiling Height ........ .... ........... ....... ........ ............ .......... .... 12
R-206 Sanitation ........... ....... .... .... .................. ...... ........... ....... ... 12
R-207 Toilet, Bath and Shower Spaces .................................... 12
R-208 Glazing ........................................................................... 13
R-209 Attached Garages ........... .............. ......... ............. ............ 18
R-21O Exits ............................................................................... 18
R-21l Doors and Hallways ....................................................... 18
R-2l2 Landings ............. ,. .................................................... ,. .... 18
R-213 Stairways ........ ........... ............... ...... ........... ............. ........ 19
R-2l4 Handrails and Guardrails ... ............ .................... ............ 20
R-2l5 Smoke Detectors .......................... .................... .............. 20
R-2l6 Foam Plastic ........................... ...................... ......... ......... 21
R-217 Flame-Spread and Smoke Density......... ........................ 22
R-218 Dwelling Unit Separation ................ ....... ......... ............... 23
R-219 Ramps ............................................................................. 24
R-220 Moisture Vapor Retarders .............................................. 25
-" .... u,."-- .". . ""' .......... ., _ •• _ ..... ;11 ----
Part 11/- Construction
CHAPTER 3 - FOUNDATIONS
Section
R-301 General ........................................................................... 27
R-302 Materials .......................... .... ..... ....... ..... ........ ... ............... 27
R-303 Footings .... ..... ...... ............. .... ......... ............... ..... ........ ..... 28
R-304 Foundation Walls ........................................................... 29
R-30S Foundation Drainage . ............. ....... ...... ............. ..... ...... ... 38
R-306 Foundation Dampproofing ....................................... _. .... 38
R-307 Foundation Insulation ........... '" ............ ....... ...... ............. 40
R-308 Columns ......................................................................... 40
R-309 Protection Against Decay ......................................... _. .... 40
R-310 Protection Against Termites ........................................... 42
R-311 Crawl Space ................................................................... 42
CHAPTER 4 - WALL CONSTRUCTION
Section
R-401 General ........................................................................... 45
R-402 Dimension Lumber ........................................................ 45
R-403 Metal .............................................................................. 59
R-404 General Masonry Construction ..... ........................... ...... 59
R-40S Unit Masonry ................................................................. 71
R-406 Anchorage ... ............................ ............. ...... .................... 72
R-407 Multiple Wythe Masonry ............................................... 73
R-408 Grouted Masonry ........................................................... 75
R-409 Reinforced Grouted Masonry ......................................... 76
R-41O Reinforced Hollow-Unit Masonry ................................. 76
RAIl Windows ........................................................................ 77
R-412 Sliding Glass Doors ....................................................... 78
R-413 Plywood ......................................................................... 78
R-414 Particleboard .................................................................. 78
CHAPTER 5 - WAll COVERING
Section
R-SOI General ........................................................................... 79
R-S02 Interior Covering .................. .............................. ............ 79
R-S03 Exterior Covering ................... ........................... ............. 82
CHAPTER 6 - FLOORS
Section
R-601 General ........................................................................... 93
R-602 Dimension Lumber ...................... .................... .............. 93
R-603 Concrete Floors (On Ground) ........................................ 99
R-604 Treated-Wood Floors (On Ground) .............................. 100
R-605 Metal ............................................................................. 101
R-606 Plywood ........................................................................ 101
R-607 Particleboard ....... ....................... ................................... 101
vi
Contents
CHAPTER 7 - ROOF-CEILING CONSTRUCTION
Section
R-701 General .......................................................................... 105
R-702 Dimension Lumber .............. ............... ....... ..... .............. 105
R-703 Plywood ........... ......... ............... .... ..... ......... .... ...... ..... .... 109
R-704 Particleboard ........ ......... ......... ........... .... .... ... ...... ........... 109
R-705 Metal ............................................................................. 110
R-706 Ceiling Finishes .... ................. ................ .... ... .......... ....... 110
R-707 Attic Ventilation ............................................................ 110
R-708 Attic Access . .... .... ..... ................. ...... ..... ............... ..... .... 110
CHAPTER 8 - ROOF COVERINGS
Section
R-801 General .......................................................................... II I
R-802 Deck Preparation .................. ......... ............. ........... ........ III
R-803 Asphalt Shingles . ...... ................... ... .... ............... ........... III
R-804 Slate Shingles ................................................................ 114
R-805 Metal ............................................................................. 114
R-806 Tile, Clay or Concrete Shingles .................................... 114
R-807 Built-Up Roofing .......................................................... 115
R-808 Wood Shingles .............................................................. 116
R-809 Wood Shakes ................................................. ................ 120
CHAPTER 9 - CHIMNEYS AND FIREPLACES
Section
R-901 Masonry Chimneys ..... ..... ............ ........... ........... .... ....... 121
R-902 Factory-Built Chimneys ................................................ 123
R-903 Masonry Fireplaces .. ......... .... ....... ........ ..... ...... .............. 123
R-904 Factory-Built Fireplaces ................................................ 126
R-905 Factory-Built Fireplace Stoves ...................................... 127
R-906 Extension Air Supply........ ............. ......... ........... ........... 127
Part IV - Mechanical
CHAPTER 10-MECHANICAL - MATERIALS AND DEFINITIONS
Section
M-1001 General .......................................................................... 129
M-1002 Appliance Labeling ....................................................... 129
M-1003 Type of Fuel.. .... ................. .... ......... ..... .......... ............... 130
M-1004 Appliance Access .......................................................... 130
M-1005 Appliance Clearances .................................................... 130
M-1006 Appliance Installation ................................................... 133
M-1007 Control Devices .... ..... ................... .... ..... ........................ 134
M-I008 Existing Mechanical Systems ....................................... 134
M-1009 Inspections .... ........... ............. ..... .......... .... ........... .......... 135
M-IOIO Definitions ..................................................................... 135