HomeMy WebLinkAboutMINUTES - 11061990 - H.2 ORDINANCE NO. 90- 100
(1988 Uniform Building Code Adoption
and Other Building Ordinance Amendments)
The Contra Costa County Board of- Supervisors ordains as follows
(omitting the parenthetical footnotes from the official text of
the enacted or amended provisions of the County Ordinance Code) :
SECTION I. SUMMARY. This ordinance makes several substantive
and nonsubstantive amendments to Title 7 of the Ordinance Code.
In particular, this ordinance adopts the 1988 Edition of the
Uniform Building Code, as modified, as the County's building
code.
SECTION II. Section 72-6 .014 of the Contra Costa County
Ordinance Code is amended, to clarify the situations when the
chief building inspector may order work to be stopped, to read:
72-6 .014 Stop work orders. Whenever any building work is
being done contrary to this title or any other law or regulation
(including, but not limited to, the following: zoning, health,
sanitation, and/or flood control) relating to or affecting the
work, the chief building inspector may order the work stopped by
notice in writing served on any persons engaged in the doing or
causing of the work; and these persons shall stop work
immediately until authorized by the chief building inspector to
proceed with the work.
(Ord. 90-100 S 2: prior code S 7108: Ord. 1372. )
SECTION III. Section 72-6 .020 of the Contra Costa County
Ordinance Code is amended, to update references to state law, to
read:
72-6.020 Abatement procedure. The procedure for the
abatement of buildings declared to be public nuisances pursuant
to section 203 of the Uniform Building Code (which is adopted by
reference in Division 74) , or pursuant to section 1001 of the
Uniform Housing Code (which is adopted by reference in Division
712) and section 712-4.006 of this code, is the procedure
specified in Article 6 (Action and Proceedings) of Subchapter 1
(State Housing Law Regulations) of Chapter 1 of Title 25 (Housing
and Community Development) of the California Code of Regulations
(25 C.C.R. SS 48 ff. ) . That procedure is adopted by this
reference as though fully set forth herein and is an alternative
to enforcement by judicial proceedings.
(Ords. 90-100 S 3, 82-23, 72-25, 71-76, 69-40, 1631: prior code
S 7111: Ord. 1372.)
SECTION IV. Section 72-6 .026 of the Contra Costa County
Ordinance Code is amended, to update references to state law, to
..read:
72-6.026 Enforcement of state lay. By authority of section
18300 of the Health & Safety Code, the county assumes the
responsibility for enforcement of Part 2.1 of Division 13 of- the
Health & Safety Code relating to mobilehomes and mobilehome
ing
parks, including regulations adopted thereunder and contained in
Chapter 2 (Mobilehome Parks Act) of Part I of Title 25 of the
California Code of Regulations (25 C.C.R. SS 1000 ff. ) .
(Ords . 90- 100 S 4, 1629 : prior code S 7114 . )
SECTION V. Section 74-1.002 of the Contra Costa County Ordinance
Code is amended, to adopt the 1988 edition of the Uniform
Building Code, to read:
(October 30, 1990) -1-
ORDINANCE NO. 90- 100
74-1.002 Adoption. (a) The building code of this county
is the 1988 edition of the Uniform Building Code (including
Appendix Chapters 1, Divisions 1 and 2; 7; 11; 12, Division 2;
23; 38; and 49) with the 1988 Uniform Building Code, standards,
published by the International Conference of Building Officials .
(b) This Uniform Code and Standards, with the changes,
additions, and deletions set forth in this division, are adopted
by this reference as though fully set forth herein.
,(c) At least one copy of this Uniform Code and Standards
are now on file in the office of the clerk of the board; and the
other requirements of Government Code section 50022 . 6 have been
and shall be complied with.
(Ords. 90-
1005 5, 87-55 5 41 80-14 S 51 74-30 . )
SECTION VI. Chapter 74-3 of the Contra Costa County Ordinance
Code is amended in its entirety, to read:
Chapter 74-3
MODIFICATIONS
'Article 74-3.1
General and UBC 9 103
74-3.101 General. The 1988 Uniform Building Code, adopted
by reference in Section 74-1 . 002, shall be effective in this
county with the changes, additions and deletions set forth in
this chapter. Where indicated by the context, chapter and
sections numbers used in this chapter are those of the Uniform
Building Code (UBC) .
(Ords. 90-1005 6, 87-55 5 5, 80-14 S 6, 74-30 S 1. )
74-3.103 UBC Sec. 103, scope. Uniform Building Code
section 103 is amended to read:
"The provisions of this code apply to
the construction, moving, demolition, repair
and use of any building or structure within
the county, except such activity located
primarily in a public way, public utility
towers and poles, and mechanical and process
equipment not specifically regulated in this
code's sections 2311 and 2312.
"Additions, alterations, repairs and
changes of use or occupancy in all buildings
and structures shall comply with the
provisions for new buildings and structures
except as otherwise provided in this code.
"Where, in any specific case, different
sections' of the code specify different
materials, methods of construction or other
requirements, the most restrictive shall
govern.
"Wherever in this code reference is made
to the Appendix, the provisions in the
Appendix shall not apply unless specifically
adopted. "
,(Ords. 90-100 S 6, 87-55 S 5, 74-30 S 1. )
(October 30, 1990) -2-
ORDINANCE NO. 90- 100
Article 74-3.2
UBC Chapter 2
74-3.201 UBC Sec. 201, enforcement agency. Uniform
Buildingsection 201 is deleted.
(Ord. 90- z$CoOce� 6, 74-30. )
74-3.202 UBC Sec. 202, powers and duties of building
official. Uniform Building Code section 202 is deleted.
(Ord. 90- 100 S 6, 74-30 . )
74-3.204 UBC Sec. 204, board of appeals. Uniform Building
Code section 204 is deleted.
(Ord. 90- 100 S 6, 74-30. )
Article 74-3.3
UBC Chapter 3
74-3.302 UBC Sec. 302, apylication for permit. Subdivision
(b) of UBC section 302 is amended by deleting the exception
thereto. Subdivision (d) of UBC section 302 is amended to read:
" (d) Information on Plans and
Specifications . Plans and specifications
shall be drawn to scale on substantial paper
or cloth and shall be sufficiently clear to
show in detail that it will conform to this
code and all relevant laws, ordinances, rules
and regulations. The first sheet of each set
of plans shall give the house and street
address of the work and the name and address
of the owner and of the person who prepared
. the plans. Plans shall include a plot plan
showing the location of the lot corners as
established on the ground, the elevation of
the top and toe of cuts and fills, and the
location of the proposed building and of
every existing building on the property.
Instead of detailed specifications, the
director of building inspection may approve
references on the plans to a specific section
or part of this code or other ordinances or
laws. "
(Ords. 90- 100 S 6, 80-14 S 7, 74-30. )
74-3.304 UBC Sec. 304, fees. Uniform Building Code section
304 is amended to read:
"Building permit and other fees shall be
as set forth in ordinances adopted by the
Board of Supervisors. "
(Ords. 90- 100S 6, 88-91 S 21 87-55 S 71 80-76 S 1, 80-14 S 7,
76-15 S 3. )
74-3.305 UBC Sec. 305, inspections. Subdivision (a) of UBC
section 305 is amended by adding the following at the end:
"At the time of first inspection by the
Building Inspector, property corners
(including angle points) shall be identified
with monuments in accordance with the legal
description furnished with the application to
build, sufficient to locate the proposed
structure in relation to the lot lines,
except that this requirement shall not apply
(October 30, 1990) -3-
ORDINANCE NO. 90- 100
to minor alterations or repairs to existing
structures not affecting the exterior limits
thereof, and construction of accessory
buildings or structures of a building permit
value of less than $500. The plot plan
required by section 302(c) shall indicate the
locations and identification of all property
corner monuments. Property corner monuments
shall consist of one of the following:
11 (1) Redwood hub not less than two
inches square and twelve inches long.
11 (2) Galvanized iron pipe not less than
one inch in diameter and thirty inches long
filled with concrete.
11 (3) Other material of sufficient
durability, placed as not to be readily
disturbed-, acceptable to the Building
Official.
"Monuments shall be driven flush with
the ground and tagged as required by the Land
Surveyor Act (Business and Professions Code
section 8772) . 11
(Ords . 90- 100 5 6, 87-55 S 81 80-14 S 71 74-30 S 1. )
Article 74-3.5
UBC Chanter 5
74-3.505 UBC Sec. 505, allowable floor areas.
Aa) For new buildings for which building permits are issued
on or after April 27, 1989, the introductory paragraph of
subdivision (e) of UBC section 505 is amended to read:
11 (e) Area Separation Walls . Each
portion of a building separated by one or
more area separation walls may be considered
a separate building provided the area
separation walls contain no openings unless
the building is protected throughout with an
approved automaticfireextinguishing system,
as specified in Chapter 38, and the walls
meet the following requirements: "
(b) For purposes of this section, "new building" includes a
building which replaces a preexisting building which has been
substantially destroyed. The building inspector shall determine
whether a building has been substantially destroyed. This
section does not apply to additions to or alterations of
buildings for which building permits have been issued before
April 27, 1989.
(Ords. 90-100 S 6, 89-20 S 2, 87-100 S 2. )
74-3.513 UBC Sec. 513, premises identification. Uniform
Building Code section 513 is amended to read:
"Sec. 513. (a) General. Approved
numbers or addresses shall be provided for
all new buildings in such a position as to be
plainly visible and legible from the street
or road fronting the property.
(October 30, 1990) -4-
ORDINANCE NO. 90-100
" (b) Residential Illumination. 1. In
addition to (a) , every new residential
dwelling unit building shall be equipped with
a lighted (illuminated) house number or
address plainly visible and legible from the
street or road fronting the property.
112. As appropriate, the planning agency
or building inspection director may grant
exceptions to this subsection (b) 's
requirements when satisfied that the
application of its requirements would impose
an unreasonable hardship and expense for the
owner and/or applicant due to special
circumstances applicable to the involved new
building(s ) because of location, topography,
or surroundings . "
(Ords . 90- 100 S 6, 88-70 5 2. )
Article 74-3.17
UBC Chapter 17
74-3.1725 UBC Sec. 1725, smoke management system. Section
1725 is added to the Uniform Building Code, to read:
"Sec. 1725. Smoke Management System.
(a) Purpose. The requirements of this
section are intended to establish basic
requirements for controlling the movement of
smoke within a building (smoke management
system) .
" (b) Where Required. This section
shall apply to all buildings housing A, B, E,
I and R-1 occupancies which meet any of the
following conditions:
"1 . Five (5) or more stories in height.
"2. Having occupied floors located more
than 40 feet above the lowest level of fire
department vehicle access.
"EXCEPTIONS: 1 . Open parking garages .
2. Aviation control
towers.
" (c) HVAC Systems. Smoke management
systems may be combined with other air
handling systems provided that, upon
activation, the smoke management functions
override all other functions. Any air
handling system shall automatically shut down
or change operation to assist in smoke
control upon such activation.
" (d) Design and Installation. 1.
Every smoke management system shall be
designed with zones which shall not exceed
one floor per zone. Upon activation, the
system shall operate at 100 percent exhaust
to the exterior from any zone of smoke
generation and at 100 percent outside supply
air to the zone of smoke generation and
adjacent zones. Adjacent zones shall have
returned dampers closed. The zone of smoke
(October 30, 1990) -5-
ORDINANCE NO. 90-100
generation shall be provided with not less
than six air changes per hour.
112. Operation of the smoke management
system shall be initiated automatically upon
the actuation of appropriately zoned .
automatic sprinkler flow indicators and/or
smoke detectors. Smoke detectors complying
with the requirements of UBC Standard 43-6
shall be provided in accordance with Section
1009 of the Uniform Mechanical Code.
113. Zone operation status .indicators
and manual controls capable of overriding the
automatic controls shall be provided in a
location approved by the fire department.
114 . Exhaust discharges and fresh- air
supply intakes shall be so located as to
prevent the re-introduction of smoke into the
-building.
115. The location of required fire
dampers or combination smoke/fire dampers
shall be clearly indicated on plans.
"6 . Duct materials shall be capable of
safely conveying heat, smoke and toxic gases,
to withstand both positive and negative
pressures which may be imposed during the
smoke-control mode, and meet all the
requirements of the Uniform Mechanical code.
11 (e) Subject to approval by the Fire
Chief and the Building Official, alternate
methods of smoke control may be used when
special building design problems prevent
total compliance with subsection (d) ,, above. "
(Ords. 90- 1005 6, 87-99 5 2. )
74-3.1726 UBC Sec. 1726, standby power. light t and emerg—ency
L
systems. Section 1726 is added to the Uniform Building Code, to
read:
"Sec. 1726 . Standby Power, Light and
Emergency Systems. (a) An on-site standby
-power generation system conforming to U.B.C.
Standard No. 18-1 shall be provided in all
buildings requiring a smoke management system
as set forth in Section 1725. The system
shall be equipped with suitable means for
automatically starting the generator set upon
failure of the normal electrical supply
systems and for automatic transfer of all
functions required by this section at full
power within 60 seconds of such service
failure. System supervision with manual
start and transfer features shall be provided
at a location approved by the fire
department.
"An on-premises fuel supply sufficient
for not less than four (4) hours full demand
operation of the system shall be provided.
" (b) The standby power
er generation
system shall supply and be sized for all of
the following:.
(October 30, 1990) -6-
ORDINANCE NO. 90- _1Q0
1 . Smoke management system.
2. Elevator car lighting.
3. Required exitway lighting.
4 . Sprinkler alarm system.
5. Fire detection system.
6 . Fire alarm system.
"Subject to approval by the Fire Chief,
Items 2 through 6 may be supplied by other
on-site power sources such as battery units .
" (c) The above requirements may be
modified when, in the opinion of the Fire
Chief and with the concurrence of the
Building Official, adequate building access
as required by the Uniform Fire Code is
provided. "
(Ords. 90- 100 5 6, 87-99 S 2. )
Article 74-3.18
UBC Chapter 18
74-3.1807 UBC Sec. 1807, special provisions. Subdivision
(g) of UBC section 1807 is amended to read:
" (g) Smoke Control. Smoke control
shall be provided in accordance with section
1725 of this code. "
(Ords . 90- 100 S 61 87-99 5 3 . )
Article 74-3.25
TIBC Chapter 25
74-3.2516 UBC Sec. 2516, general construction requirements.
Paragraph 4 of subdivision (g) , exterior wall coverings, of UBC
section 2516 is amended by adding the following:
"When untreated wood shingles or shakes
are used for .exterior wall covering, there
shall be a minimum of 10 feet from the
exterior wall to the property line on all
sides except for the street. "
(Ords. 90- 100 S 6, 87-55 S 9 . )
Article 74-3.26
UBC Chapter 26
74-3.2623 UBC Sec. 2623, minimum slab thickness. Uniform
Building Code section 2623 is amended to read:
"Sec. 2623. The minimum of concrete
floor slabs supported directly on the ground
shall be not less than three and one-half (3
1/211 ) inches. Slabs shall have six (611 )
inches by six (611 ) inches by ten (10) gauge
wire mesh or equal at its midheight. Earth
under concrete slabs shall be of proper
consistency and thickness to retard capillary
(October 30, 1990) -7-
ORDINANCE NO. 90- 100
action and shall be approved by the Building
Inspector. "
(Ards. 90- 100 S 6, 80-14 5 7, 74-30. )
Article 74-3.29
UBC Chapter 29
74-3.2907 UBC Sec. 2907, footings. Subdivision (e) of UBC
section 2907 is amended by adding the following:
"A minimum of two (2) one-half (112)
inch steel reinforcing bars shall be provided
in the continuous foundations of Group R and
M occupancies. "
(Ards. 90- 100 S 6, 87-55 S 10, 80-14 S 7, 74-30 5 1. )
Article 74-3.32
-UBC Chapter 32
74-3.3203 UBC Sec. 3203, roof covering requirements.
Uniform Building Code section 3203 is amended by adding
subdivisions (b) and (c) , to read:
"Sec. 3203. (a) The roof covering on
any structure regulated by this code shall be
as specified in Table No. 32-A and as
classified in Section 3204.
"The roof-covering assembly includes the
roofdeck, underlayment, interlayment,
insulation and covering which is assigned a
roof-covering classification.
.'I (b) Fire Retardancy, When Required.
Roof coverings shall be fire retardant except
in Types III, IV and V buildings, where they
may be as follows:
r'1.. Class C roof coverings which comply
with UBC Standard No. 32-7 may be used on
buildings of Group R, Division 3 or Group M
Occupancies .
112. Class C roof coverings which comply
with UBC Standard No. 32-7 may be used on
Group A, Division 31 Group B, Division 1 and
2, and Group R, Division 1 occupancies which
are not more than two stories in height and
have not more than 6,000 square feet of
projected roof area and there is a minimum 10
feet from the extremity of the roof to the
property line on all sides except for street
fronts .
"Skylights shall be constructed as
required in Chapter 34 .
"Penthouses shall be constructed as
required in Chapter 36.
"For use of plastics in roofs, see
Chapter 52.
(October 30, 1990) -8-
ORDINANCE NO. 90- 100
"For attics, access and area, see
section 3205. For roof drainage, see section
3207 .
"For solar energy collectors located
above or upon a roof, see Section 1714 . "
" (c) Re-roofings. The fire ratings of
roof covering for re-roofings shall be not
less than that required for new roofs for
that occupancy classification. "
(Ords . 90- 100 S ,6, 87-55 S 11 . )
Article 74-3.38
UBC Chapter 38
74-3.3802 UBC Sec. 3802, automatic fire-extinguishing
systems . (a) For new buildings for which building permits are
issued on or after April 27, 1989, subdivision (i) is added to
UBC section 3802, to read:
" (i) - All Occupancies. An automatic
Sprinkler system shall be installed:
"1 . In all buildings when the total
floor area, including mezzanines, exceeds
10,000 square feet.
"2. In all .buildings separated by one
or more area separation walls without
openings when the total floor area, including
mezzanines, exceeds 20,000 square feet.
"EXCEPTIONS to paragraphs 1 and 2:
"A. Agricultural buildings .
"B. Group B. Division 3, open parking
garage buildings containing no other
occupancies and where exterior walls
containing openings are located not less than
20 feet from an adjacent property line or
center street line or public space.
"C. when determining a building's total
floor area, the floor area of mechanical
rooms of not more than 50 square feet and
separated from the remainder of the building
by not less than a 1 hour fire resistive
occupancy separation need not be considered. "
" (b) For purposes of this section, "new
building" includes a building which replaces
a preexisting building which has been
substantially destroyed. The building
inspector shall determine whether a building
has been substantially destroyed. This
section does not apply to additions to or
alterations of buildings for which building
permits have been issued before April 27,
1989 . "
(Ords. 90 100 S 6, 89-20 S 3, 87-100 S 3, 80-14 S 7, 74-30. )
(October 30, 1990) -9-
ORDINANCE NO. 90- 100
Article 74-3.47
UBC Chapter47
74-3.4711 IMC Sec. 4711, gypsum wallboard. Subdivision (a)
of UBC section 4711 is amended to read:
" (a) General. All gypsum wallboard
shall conform to U.B.C. Standard No. 47-11
and shall be installed in accordance with the
provisions of this section. Gypsum wallboard
shall not be installed on weather-exposed
surfaces. See section 424 . For use as
backing under stucco, see section 4706 (c) .
"Gypsum wallboard shall not be installed
until weather protection for the installation
is provided.
"Shower and public toilet walls shall
conform to Sections 510 and 511 .
"Water-resistant gypsum backing board
shall conform to U.B.C. Standard No. 47 .14.
"When gypsum wallboard or similarly
, applied materials and exterior stucco are
applied to wood frame walls, the interior
material shall be fastened in place after the
exterior lathing installed, but before stucco
is applied. "
(Ords. 90- 100 S 6, 80-14 5 7, 74730. )
SECTION VII. The adoption of this ordinance does not affect any
schedule of fees adopted by the Board of Supervisors .
SECTION VIII. EFFECTIVE DATE. This ordinance becomes effective
30 days after passage, and within 15 days after passage shall be
published once with the names of the supervisors voting for and
against it in the Contra Costa Times, a newspaper published in
this County.
PASSED AND ADOPTED on November 6 , 1990 by the following vote.
AYES: 'Supervisors Powers , .-McPeak, Schroder, Torlakson
NOES: None
ABSENT: Supervisor Fab-den
ABSTAIN: None
ATTEST: Phil Batchelor,
Clerk of the Board of
Supervisors and County
Administrator
By:
Deputy Chair of he-loard
LTF•/jh (SEAL]
(October 30, 1990) _10- 100,
J-5:a;/1tf/ord/bui1di.ng.f ORDINANCE NO. 90- -
OA
THE BOARD OF SUPERVISORS OF CONTRA COSTA COUNTY, CALIFORNIA
Adopted this Order on November 6 1990by the following vote:
AYES: Superisors Schroder, McPeak, Torlakson, Powers
NOES: None
ABSENT: Supervisor Fah.den
ABSTAIN: None
SUBJECT: 1988 Uniform Building )
Code Adoption - Findings ) RESOLUTION NO. 90/ 734
Justifying Local Variances)
Pursuant to Government Code section 50022 . 2, this Board
intends to adopt the 1988 edition of the Uniform Building Code,
with modifications, as the County's building code.
Health and Safety Code sections 17958, 17958 .5 and 19758 .7
require that in adopting ordinances which make modifications or
changes in the requirements contained in the State's Building
Standard Code and other regulations adopted pursuant to Health
and Safety Code section 17922, a determination must be made that
said modifications or changes are reasonably necessary because of
local climatic, geological or topographical conditions .
The modifications to the 1988 Uniform Building Code involve
changes to the State's Building Standards Code: specifically,
amendments to UBC sections 505, 1807, 2516, 2623, 3203, 3802; and
the addition of sections 1725 and 1726 .
These modifications to the 1988 Uniform Building Code are
the same as modifications which were made to the 1985 Uniform
Building Code. The facts, evidence and information relied upon
by this Board to make these modifications to the 1985 Uniform
Building Code have not changed.
Based upon the facts, evidence and information considered
and relied upon by the Board in modifying the 1985 Uniform
Building Code, this Board hereby FINDS, pursuant to Health and
Safety Code section 17958 .7, that the above-referenced
modifications and changes to the 1988 Uniform Building Code are
reasonably necessary because of local climatic, geological and/or
topographical conditions .
Pursuant to Health and Safety Code section 17958 . 7, the
Building Inspection Department is DIRECTED to send a certified
copy of this resolution and the ordinance adopting and amending
the 1988 Uniform Building Code, to the State Department of
Housing and Community Development.
LTF/jh
J-5:a:\variance.1tf
hereby certify that this is a true and correct copy of
an action taken and •ont3red on the minutes of the
Board of Supervisors on the date shown.
ATTESTED: Arr�t,[/I/I�i(11116, �7/�,g
o
PHIL BATCHELOR, Clerk of the Boaro
of Supervisors and County Administrator
Byr. Deputy
Orig. Dept.:
cc:
RESOLUTION NO. 90/734