HomeMy WebLinkAboutAGENDA REPORT 2007 1107 CC REG ITEM 09B -q- -h-
CITY
OF MOORPARK,
City Council Meeting
Of //'1'07,90.7
ACTION: e_5-
MOORPARK CITY COUNCIL -o A� �
AGENDA REPORT Y:`•— -TO: Honorable Honorable City Council
FROM: Barry K. Hogan, Deputy City Manager
By: David Lasher, Senior Manage Analyst��
DATE: October 25, 2007 (CC Meeting of 11/7/2007)
SUBJECT: Consider an Ordinance of the City of Moorpark, California, Amending
Specific Chapters of Title 15 of the Municipal Code by Amending
Chapters 15.04, 15.08, 15.12, 15.14, 15.16, 15.18, and 15.20; Adopting
by Reference and Amending the Current Editions of Certain Model
Codes
BACKGROUND
The State of California Health and Safety Code requires all jurisdictions to enforce the
most recent editions of various building standards. Although the State requires the
enforcement of certain standards, it allows the City to amend these standards in order
to address local concerns. The State, however, does limit the City's ability to amend the
prescribed building standards to amendments that are reasonably necessary for
reasons relating to local climate, geology and topography.
The proposed Ordinance includes such amendments to specific Municipal Code
Sections dealing with seismic upgrades and other changes to the building standards to
improve public safety with respect especially to earthquakes and fire hazards. The
proposed amendments in the Ordinance were developed and recommended by local
building officials and engineers in conjunction with the Structural Engineers Association
of California (SEAC). SEAC, the City of Los Angeles and the cities of Ventura County
as a unified consortium agreed to recommend adoption of these additional amendments
(which exceed the 2007 California Building Standards Codes) given unique climatic,
geological and/or topographical conditions that impact our local environment.
The State-mandated standards, along with any amendments, must be adopted by
January 1, 2008. If the City fails to adopt the attached Ordinance with the
recommended amendments to the specified chapters of Title 15, the State-mandated
standards will then automatically go into effect, and any local amendments will be lost.
\\mor_pri_sery\City Share\Community Development\BLDG\Building Code\071107 CC agenda report, building code, revised draft,,
071031.doc
Honorable City Council
November 7, 2007
Page 2
The related and updated 2007 California Building Standards Codes includes updates to
the following codes: the 2007 California Building Code (CDC), which is based on the
2006 International Building Code (IBC); the 2007 California Electrical Code (CEC); the
2007 California Mechanical Code; the 2007 California Plumbing Code; the 2007
California Energy Code; the 2007 California Referenced Standards; the 2006 Edition of
the International Property Maintenance Code; and the 2007 California Administrative
Code.
DISCUSSION
As noted, a consortium of related local government professionals (including the City's
own building official), other regional government building officials and engineers and
SEAC have recommended a number of amendments above and beyond the new State
Building Standards Code that takes effect on January 1, 2008. These local
amendments to the City's Building Code have been recommended for specific climatic,
geological, or topographical conditions pursuant to Section 17958.5 of the Health and
Safety Code of the State of California.
The amendments fall into two categories: amendments to actual building standards and
amendments to administrative provisions. Proposed amendments to the actual building
standards include changes addressing:
• Design requirements for ceiling suspension systems.
• Requirements for sub-diaphragms and continuity ties.
• Reducing the use and impact of expansive soils and the shrink/swell rates of
expansive soils.
• Reducing the impact of storm water drainage during periods of intense rainfall.
• Adding additional restrictions on the design of wood structural panel diaphragms
and shear walls.
• Prohibiting the use of wood diaphragms in rotation based on numerous failures
(as observed in the 1994 Northridge Earthquake).
• Reducing allowable shear values for shear walls sheathed with lath, plaster or
gypsum board.
• Limiting the use of conventional wood frame construction to simple one-story
residential buildings.
• Limiting the use of conventional framing braced wall panels to twenty-five feet
maximum spacing.
• Requiring that interior braced walls be supported by continuous foundations.
• Limiting the use of stone and masonry anchored veneer when using conventional
framing design.
Honorable City Council
November 7, 2007
Page 3
• The establishment of boundaries within the City for structures near hillside brush
areas with respect to reducing the potential fire damage and fire spread.
• The requirement for special construction elements for structures near hillside
brush areas, again with regard to reducing the threat from wildland fires.
State law requires that the Council direct staff to advertise a public hearing to be held at
least fifteen (15) days prior to consideration of second reading of the ordinance.
Additionally, if the local jurisdiction has made any substantive changes to the Code, it is
required to send those changes to the state. In this amendment, there are substantive
changes which are recommended to the structural chapter of the Code.
STAFF RECOMMENDATION
1. Introduce Ordinance No. 2007- for first reading, and direct staff to schedule
a public hearing and second reading for December 5, 2007.
Attachments: Draft Ordinance
1
ORDINANCE NO.
AN ORDINANCE OF THE CITY OF MOORPARK
CALIFORNIA, AMENDING CHAPTERS 15.04, 15.08, 15.12,
15.14, 15.16, 15.18, AND 15.20 OF TITLE 15 OF THE
MOORPARK MUNICIPAL CODE AND ADOPTING BY
REFERENCE AND AMENDING THE CURRENT EDITIONS
OF CERTAIN MODEL CODES AS FOLLOWS:
CALIFORNIA BUILDING CODE, VOLUMES 1, & 2, 2007
EDITION WITH APPENDIX CHAPTER 1 ADMINISTRATION
AND APPENDICES B, C, G, I AND J; INCLUDING THE
GYPSUM ASSOCIATION FIRE RESISTIVE DESIGN
MANUAL, EIGHTEENTH EDITION, GA-600-06;
CALIFORNIA ELECTRIC CODE, 2007 EDITION,
CALIFORNIA PLUMBING CODE, 2007 EDITION;
CALIFORNIA MECHANICAL CODE, 2007 EDITION;
CALIFORNIA ENERGY CODE, 2007 EDITION;
CALIFORNIA REFERENCED STANDARDS, 2007
EDITION; INTERNATIONAL PROPERTY MAINTENANCE
CODE 2006 EDITION; AND THE CALIFORNIA
ADMINISTRATIVE CODE, 2007 EDITION
WHEREAS, Government Code Section §50022.1, et seq., provides that
ordinances and codes of the Federal, State, or any agency of either of them, may be
adopted by reference, provided that prior to such adoption by reference a noticed public
hearing has been held; and
WHEREAS, a noticed public hearing has been held by the City Council, at which
time all interested persons had the opportunity to appear and be heard on the matter of
adopting by reference the current editions of certain model codes, as follows: California
Building Code, 2007 Edition, Volumes 1, 2 with Appendix Chapter 1 Administration and
Appendices C, I and J ; including the Gypsum Association Fire Resistive Design
Manual, Eighteenth Edition, GA-600-06; California Electrical Code, 2007 Edition;
California Plumbing Code, 2007 Edition; California Mechanical Code, 2007 Edition;
California Energy Code, 2007 Edition; California Referenced Standards, 2007 Edition;
International Property Maintenance Code, 2006 Edition; and the California
Administrative Code, 2007 Edition; together with amendments thereto;
ORDINANCE, AMENDMENTS TO TITLE 15
Page 2
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF MOORPARK,
CALIFORNIA, DOES ORDAIN AS FOLLOWS:
SECTION 1. That Title 15, Chapters 15.04, 15.08, 15.12, 15.14, 15.16,
15.18, and 15.20 of the Moorpark Municipal Code are amended in their entirety to read
as follows;
"CHAPTER 15.04
ADMINISTRATIVE PROVISIONS
15.04.010 ADMINISTRATIVE CODE ADOPTED. Except as hereinafter
provided, Appendix Chapter 1 Administration, of the California Building Code 2007
Edition, published by the International Conference of Building Officials, is hereby
adopted by reference as the Administrative Code of the City of Moorpark. A copy of the
California Building Code, Appendix Chapter 1, 2007 Edition shall be maintained in the
Office of the City Clerk of the City of Moorpark and shall be made available for public
inspection while this Code is in force.
15.04.020 PERMIT FEES. Section 108.2 of the California Building Code,
Appendix Chapter 1, Administration, is hereby amended to read:
Section 108.2 PERMIT FEES. The fee for each permit shall be as set forth in the
latest resolution of the City Council of the City of Moorpark relating to permit fees.
15.04.030 PLAN REVIEW FEES. Section 108.7 of the California Building Code,
Appendix Chapter 1, Administration, is hereby added:
Section 108.7 PLAN REVIEW FEES. When a plan or other data is required to be
submitted by Section 106.1, a plan review fee shall be paid at the time of submitting
plans and specifications for review. The plan review fee shall be as set forth in the
latest resolution of the City Council of the City of Moorpark relating to plan review fees.
The plan review fees specified in this subsection are separate fees from the permit fees
specified in Section 108.2 and are in addition to the permit fees. Where plans are
incomplete or changed so as to require additional plan review, an additional plan review
fee shall be charged at the same rate as charged upon submittal of plans and
specifications.
15.04.040 LIABILITY. Section 104.8 of the California Building Code, Appendix
Chapter 1, Administration, is hereby amended to read:
Section 104.8 LIABILITY. The Building Official, or his/her authorized representative
charged with the enforcement of this Code and the technical codes, acting in good faith
and without malice in the discharge of his duties, shall not thereby render
himself/herself personally liable for any damage that may accrue to persons or property
G000G1
ORDINANCE, AMENDMENTS TO TITLE 15
Page 3
as a result of any act or by reason of any act or omission in the discharge of his/her
duties. Any suit brought against the Building Official, agent or employee because of
such act or omission performed by him/her in the enforcement of any provision of such
Codes or other pertinent laws or ordinances implemented through the enforcement of
this Code or enforced by the code enforcement agency shall be defended by this
jurisdiction until final termination of such proceedings, and any judgment resulting
therefrom shall be assumed by this jurisdiction.
The provisions of this section shall apply if the Building Official or his/her authorized
representatives are employees of this jurisdiction and shall also apply if the Building
Official or his/her authorized representatives are acting under contract as agents of the
jurisdiction.
Such Codes shall not be construed to relieve from or lessen the responsibility of any
person owning, operating or controlling any building, structure or building service
equipment therein 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 inspection authorized by this code or any permits or certificates
issued under this code.
15.04.050 DISASTER RESPONSE: The City Manager may enter into mutual aid
agreements for emergency Building and Safety Services for the purpose of assuring
adequate and effective response in the event of earthquake or other unforeseen
emergencies.
15.04.060 VIOLATIONS AND PENALTIES. (a) 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 land, building or
structure, building service equipment, machine or equipment; or cause or permit the
same to be done in violation of this Code or the Technical Codes. Each such person
shall be deemed guilty of a separate offense for each and every day or portion thereof
during which any violation of any of the provisions of this Code or the Technical Codes
is committed, continued, or permitted.
(b) It shall be unlawful for any person to remove, deface, alter, or obstruct from
view a posted notice of the Building Official or duly appointed representative when such
notice constitutes a stop work order or a warning of substandard or hazardous
conditions or prohibits or restricts the occupancy or use of a building, structure, or
building service equipment regulated by this Code or the Technical Codes.
(c) Every violation of this Code or the Technical Codes shall be deemed a
misdemeanor.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 4
(d) Any person convicted of a misdemeanor shall be punishable by a fine of not
more than one thousand dollars ($1,000) or by imprisonment for not more than six (6)
months or by both such fine and imprisonment.
CHAPTER 15.08
BUILDING CODE
15.08.010 BUILDING CODE ADOPTED. Except as hereinafter provided, the
California Building Code, 2007 Edition, Volumes 1, & 2, including: (1) generic fire-
resistive assemblies listed in the Gypsum Association Fire Resistive Design Manual,
Eighteenth Edition, GA-600-06 as referenced in Tables 720.1(1), 720.1(2) and 720.1(3).
15.08.020 SUSPENDED CEILINGS, Section 1613.7 is hereby added to Chapter
16 of the 2007 California Building Code to read as follows:
1613.7 Suspended Ceilings. Minimum design and installation standards for
suspended ceilings shall be determined in accordance with the requirements of Chapter
25 of this Code and this subsection.
1613.7.1 Scope. This part contains special requirements for suspended ceilings
and lighting systems. Provisions of Section 13.5.6 of ASCE 7 shall apply except as
modified herein.
1613.7.2 General. The suspended ceilings and lighting systems shall be limited
to 6 feet (1828 mm) below the structural deck unless the lateral bracing is designed by a
licensed engineer or architect.
1613.7.3 Design and Installation Requirements.
1613.7.3.1 Bracing at Discontinuity. Positive bracing to the structure shall be
provided at changes in the ceiling plane elevation or at discontinuities in the ceiling grid
system.
1613.7.3.2 Support for Appendages. Cable trays, electrical conduits and piping
shall be independently supported and independently braced from the structure.
1613.7.3.3 Sprinkler Heads. All sprinkler heads (drops) except fire-resistance-
rated floor/ceiling or roof/ceiling assemblies, shall be designed to allow for free
movement of the sprinkler pipes with oversize rings, sleeves or adaptors through the
ceiling tile, in accordance with Section 13.5.6.2.2 (e) of ASCE 7 .
Sprinkler heads penetrating fire-resistance-rated floor/ceiling or roof/ceiling assemblies
shall comply with Section 712 of this Code.
1613.7.3.4 Perimeter Members. A minimum wall angle size of at least a two-inch
(51 mm) horizontal leg shall be used at perimeter walls and interior full height partitions.
000OG3
ORDINANCE, AMENDMENTS TO TITLE 15
Page 5
The first ceiling the shall maintain 3/4-inch (19 mm) clear from the finish wall surface. An
equivalent alternative detail that will provide sufficient movement due to anticipated
lateral building displacement may be used in lieu of the long leg angle subject to the
approval of the Superintendent of Building.
1613.7.4 Special Requirements for Means of Egress. Suspended ceiling
assemblies located along means of egress serving an occupant load of 30 or more shall
comply with the following provisions.
1613.7.4.1 General. Ceiling suspension systems shall be connected and braced
with vertical hangers attached directly to the structural deck along the means of egress
serving an occupant load of 30 or more and at lobbies accessory to Group A
Occupancies. Spacing of vertical hangers shall not exceed 2 feet (610 mm) on center
along the entire length of the suspended ceiling assembly located along the means of
egress or at the lobby.
1613.7.4.2 Assembly Device. All lay-in panels shall be secured to the suspension
ceiling assembly with two hold-down clips minimum for each tile within a 4 foot (1219
mm) radius of the exit lights and exit signs.
1613.7.4.3 Emergency Systems. Independent supports and braces shall be
provided for light fixtures required for exit illumination. Power supply for exit illumination
shall comply with the requirements of Section 1006.3 of this Code.
1613.7.4.4 Supports for Appendage. Separate support from the structural deck
shall be provided for all appendages such as light fixtures, air diffusers, exit signs, and
similar elements.
15.08.030 SUB-DIAPHRAGM AND CONTINUITY TIES, Section 1614, 1614.1
and 1614.1.6 are hereby added to Chapter 16 of the 2007 California Building Code to
read as follows:
SECTION 1614
MODIFICATION TO ASCE 7.
1614.1 General. The text of ASCE 7 shall be modified as indicated in this
Section.
1614.1.6 ASCE 7, 12.11.2.2.3. Modify ASCE 7 Section 12.11.2.3 to read as
follows:
12.11.2.2.3 Wood Diaphragms. In wood diaphragms, the continuous ties shall
be in addition to the diaphragm sheathing. Anchorage shall not be accomplished by use
of toe nails or nails subject to withdrawal nor shall wood ledgers or framing be used in
cross-grain bending or cross-grain tension. The diaphragm sheathing shall not be
considered effective as providing ties or struts required by this section.
60 C,0
ORDINANCE, AMENDMENTS TO TITLE 15
Page 6
For wood diaphragms supporting concrete or masonry walls, wood diaphragms shall
comply with the following:
1. The spacing of continuous ties shall not exceed 40 feet. Added chords of
diaphragms may be used to form sub-diaphragms to transmit the anchorage
forces to the main continuous crossties.
2. The maximum diaphragm shear used to determine the depth of the sub-
diaphragm shall not exceed 75 percent of the maximum diaphragm shear.
15.08.040 FOUNDATION DESIGN. Section 1805.8.5 is hereby added and
TABLE 1805.4.2 is hereby amended to read:
Section 1805.8.5. When buildings are located on expansive soil having an
expansion index greater than 50, gutters, downspouts, piping, and/or other non-erosive
devices shall be provided to collect and conduct rain water to pervious areas such as
yards, open channels, or vegetated areas. Routing rooftop runoff via yard drains to the
roadway or the storm water conveyance system shall not be permitted.
0000GS
Table 1805.4.2—Foundations for stud bearing walls—minimum requirements"10,11,12
Weighted Foundation for slab and raised floor systemsZ's' Concrete slabs
expansion No.of Stem Footing Footing All perimeter Interior footings Reinforcement 3-1/2"minimum thickness Pre-moisteneing Restrictions on
index stories thickness' widths thickness footings6 for slab and for continuous 4"with E.1.over 51 of soils under piers under
raised floors' foundations 0'' Reinforcement' Total footings,piers raised floors
Depth below natural surface thickness and slabs','
of ground and finish grade of sand
Inches
0-20 1 6 12 6 12 12 144 #4 @ 48"o/c.. Moistening of ground Piers allowed for
Very low 2 6 15 7 18 18 Top and each way 2" prior to placing concrete single floor
non expansive 3 10 18 8 24 24 bottom or is recommended loads only
21-50 1 6 12 6 15 12 144 #3 @ 36"o/c.. 3%over optimum moisture required Piers allowed for
Low 2 8 15 7 18 18 Top and each way 4" to a depth of 18"below lowest adjacent single floor
3 10 18 8 24 24 bottom I grade.Testing required. loads only
51-90 1 6 12 8 21 12 144 top #3 @ 24"o.c. 3%over optimum moisture required
Medium 2 8 15 8 21 18 and bottom each way 4" to a depth of 18"below lowest adjacent Piers not
3 10 18 8 24 24 #3 bars @ 24"o.c.each way grade.Testing required. allowed
12"into footing,36"into slab 10
91-130 1 6 12 8 27 12 2-#4 #3 @ 24"o.c. 3%over optimum moisture required
High 2 8 15 8 27 18 Top&bottom leach way 4" to a depth of 18"below lowest adjacent Piers not
3 10 18 8 27 24 #3 bars @ 24"o.c.each way grade.Testing required. allowed
12"into footing,36"into slab 10
Above 130 Special design by a licensed Architect or Engineer required
very high
ate.•
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V i
ORDINANCE, AMENDMENTS TO TITLE 15
Page 7
FOOTNOTES TO TABLE CBC 1805.4.2
1. Premoistening is required where specified in Table CBC 1805.4.2 in order to achieve
maximum and uniform expansion of the soil prior to construction and thus limit structural
distress caused by uneven expansion and shrinkage. Other systems, which do not
include pre-moistening, may be approved by the Building Official, when such
alternatives are shown to provide equivalent safeguards against the adverse effects of
expansive soil.
2. Underfloor access crawl holes shall be provided with curbs extending not less than 6
inches above adjacent grade to prevent surface water from entering the foundation
area.
3. Reinforcement for continuous foundations shall be placed not less than 3 inches
above the bottom of the footing and not less than 3 inches below the top of the stem.
4. Slab reinforcement shall be placed at mid-depth and continue to within two inches of
the exterior face of the exterior face of the exterior footing walls.
5. Moisture content of soils shall be maintained until foundations and piers are poured
and a vapor barrier is installed. Test shall be taken within 24 hours of each slab pour.
6. Crawl spaces under raised floors need not be pre-moistened except under interior
footings. Interior footings which are not enclosed by a continuous perimeter foundation
system or equivalent concrete or masonry moisture barrier complying with Section UBC
1806.3 in this ordinance shall be designed and constructed as specified for perimeter
footings in table UBC 18-1-C.
7. A grade beam not less than 12 inches by 12 inches in cross-sectional area,
reinforced as specified for continuous foundations in Table CBC 1805.4.2, shall be
provided at garage door openings.
8. Foundation stem walls which exceed a height of three times the stem thickness
above lowest adjacent grade shall be reinforced in accordance with Chapters 18 and 19
in the CBC, or as required by engineering design, whichever is more restrictive.
9. Footing widths may be reduced upon submittal of calculations by a registered civil or
structural engineer or licensed architect, but shall be a minimum of 12 inches for one
and two-story structures and 15 inches for three-story structures.
10.Bent reinforcing bar between exterior footing and slab shall be omitted when floor is
designed as an independent, "floating" slab.
11. Fireplace footings shall be reinforced with a horizontal grid located 3 inches above
the bottom of the footing and consisting of not less than No. 4 bars at 12 inches on
ORDINANCE, AMENDMENTS TO TITLE 15
Page 8
center each way. Vertical chimney reinforcing bars shall be hooked under the grid.
12.Underground utility conduits shall be installed prior to foundation inspection and shall
extend beyond the foundation so that final connection will not undermine the finished
foundation.
15.08.050, PLYWOOD DESIGN, Section 2306.3.1, 2306.4.1 and table 2306.4.1
of the 2007 California Building Code is hereby amended to read as follows:
2306.3.1 Wood structural panel diaphragms. Wood structural panel diaphragms
are permitted to resist horizontal forces using the allowable shear capacities set forth in
Table 2306.3.1 or 2306.3.2.
2306.4.1. Wood structural panel shear walls. The allowable shear capacities for
wood structural panel shear walls shall be in accordance with Table 2306.4.1. These
capacities are permitted to be increased 40 percent for wind design. Wood shear walls
shall be constructed of wood structural panels manufactured with exterior glue and not
less than 4 feet by 8 feet (1219 mm by 2438 mm), except at boundaries and at changes
in framing. Wood structural panel thickness for shear walls shall not be less than 3/8-
inch thick and studs shall not be spaced at more than 16 inches on center.
The maximum allowable shear value for three-ply plywood resisting seismic
forces is 200 pounds per foot (2.92 kn/m). Nails shall be placed not less than Y2-inch
(12.7 mm) in from the panel edges and not less than 3/8-inch (9.5mm) from the edge of
the connecting members for shear greater than 350 pounds per foot (5.11 kN/m). Nails
shall be placed not less than 3/8-inch (9.5 mm) from panel edges and not less than '/-
inch (6.4 mm) from the edge of the connecting members for shears of 350 pounds per
foot (5.11 kN/m) or less.
Any wood structural panel sheathing used for diaphragms and shear walls that
are part of the seismic-force-resisting system shall be applied directly to framing
members.
Exception: Wood structural panel sheathing in a horizontal diaphragm is permitted to be
fastened over solid lumber planking or laminated decking, provided the panel joints and
lumber planking or laminated decking joints do not coincide.
0010008
TABLE 2306.4.1
ALLOWABLE SHEAR (POUNDS PER FOOT) FOR WOOD STRUCTURAL PANEL SHEAR WALLS WITH
FRAMING OF DOUGLAS FIR-LARCH OR SOUTHERN PINEa FOR WIND OR SEISMIC LOADING b,h,I,j,I,m,n
ALLOWABLE SHEAR VALUE FOR SEISMIC FORCES ALLOWABLE SHEAR VALUE FOR WIND FORCES
MINIMUM MINIMUM PANELS APPLIED DIRECTLY TO FRAMING PANELS APPLIED DIRECTLY TO FRAMING
NOMINAL FASTENER Fastener spacing at panel Fastener spacing at panel
PANEL PENETRATION NAIL(common or galvanized edges(inches) NAIL(common or galvanized edges inches
THICKNESS IN FRAMING box)or staple size a box)or staple size e
PANEL GRADE (inch) (inches) 6 4 3 2 6 4 3 2
6d(2"x0.113"common,2"x0.099" 6d(2"x0.113"common,2"x0.099"
5/16 1-1/4 galvanized box 150 200 200 200 galvanized box 200 300 390 510
1 1-1/2 16 Gage 124 184 200 200 1-1/2 16 Gage 165 245 325 415
Sd(2%"x0.131"common, 200 200 200 200 8d(2'/2'x0.131"common, 230d 360d 460d 610d
3/8 1-3/8 2'/2'x0.113"galvanized box) 2/2'x0.113"galvanized box
1 1-1/2 16 Gage 116 176 200 200 1 1-1/2 16 Gage 155 235 310 400
Structural I 1-3/8 8d(2'/2'x0.131"common, 255d 395d 505d 670d 8d(2'/2'x0.131"common, 255d 395d 505d 670d
'/2
Sheathing 7/16 2 'x0.113"galvanized box 2/2'x0.113"galvanized box
1 1-1/2 16 Gage 128 195 259 330 1-1/2 16 Gage 170 260 345 440
1-3/8 8d(2'/2'x0.131"common, 280 430 550 730 8d(2%"x0.131"common, 280 430 550 730
2%2'x0.113"galvanized box) 2'/2'x0.113"galvanized box
15/32 1 1-1/2 16 Gage 139 210 281 356 1-1/2 16 Gage 185 280 375 475
10d(3"x0.148"common, 3"x0.128" 340 510 665 f 870 10d(3"x0.148"common,3"x0.128" 340 510 665 f 870
1-1/2 galvanized box galvanized box)
6d(2"x0.113"common,2"x0.099" 6d(2"x0.113"common,2"x0.099"
5116 or 1/4c 1-1/4 galvanized box
180 200 200 200 galvanized box) 180 270 350 450
1 1-1/2 16 Gage 109 165 200 200 1-1/2 16 Gage 145 220 295 375
1-1/4 6d(2"x0.113"common,2"x0.099" 200 200 200 200 6d(2'x0.113"common,2"x0.099" 200 300 390 510
galvanized box galvanized box
3/8 1-3/8 8d(2'/2'x0.131"common, 200 200 200 200 8d(21/2'x0.131"common, 220d 320d 410d 530d
2'/2'x0.113"galvanized box) 2/2'x0.113"galvanized box
1 1-1/2 16 Gage 105 158 200 200 1-1/2 16 Gage 140 210 280 360
8d(2'/2'x0.131"common, d d d d 8d(2'/2'x0.131"common, d d d d
1-3/8 240 350 450 585 240 350 450 585
Sheathing, 7/16 2'/2'x0.113"galvanized box 2/2'x0.113"galvanized box
g 1 1-1/2 16 Gage 116 173 233 296 1-1/2 16 Gage 155 230 310 395
plywood siding 8d(2'/2'x0.131"common, 8d(2'/2'x0.131"common,
except Group 5 1 3/8 2'/2'x0.113"galvanized box 260 380 490 640 2'/2'x0.113"galvanized box) 260 380 490 640
Species 15/32 310 460 600 770 310 460 g00 10d(3"x0.148"common,3"x0.128" f 10d(3"x0.148"common, 3"x0.128" f 770
1-1/2 galvanized box) galvanized box)
1 1-1/2 16 Gage 128 191 251 323 1-1/2 16 Gage 170 255 335 430
1-1/2 10d(3"x0.148"common,3"x0.128" 340 510 665f 870 10d(3"x0.148"common, 3"x0.128" 340 510 665f 870
19/32 galvanized box galvanized box
1 1-3/4 16 Gage 139 210 281 356 1-3/4 16 Gage 185 280 375 475
Nail Size(galvanized casing) Nail Size(galvanized casing
5/16c 1-1/4 6d(2"x0.099") 140 200 200 200 6d(2"x0.099") 140 210 275 360
3/8 1-3/8 8d 2%"x0.113" 160 200 200 200 8d 2%"x0.113" 160 240 310 410
.s.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 9
FOOTNOTES TO TABLE 2306.4.1
For SI: 1 inch = 25.4 mm, 1 foot = 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. For framing of other species: (1) Find specific gravity for species of lumber in AF&PA
NDS. (2) For staples find shear value from table above for Structural I panels
(regardless of actual grade) and multiply value by 0.82 for species with specific
gravity of 0.42 or greater, or 0.65 for all other species. (3) For nails find shear value
from table above for nail size for actual grade and multiply value by the following
adjustment factor: Specific Gravity Adjustment Factor = [1-(0.5-SG)], where SG =
Specific Gravity of the framing lumber. This adjustment factor shall not be greater
than 1.
b. Panel edges backed with 2-inch nominal or thicker framing. Install panels either
horizontally or vertically. Space fasteners maximum 6 inches on center along
intermediate framing members for 3/8-inch and 7/16-inch panels installed on studs
spaced 24 inches on center. For other conditions and panel thickness, space
fasteners maximum 12 inches on center on intermediate supports.
c. 3/8-inch panel thickness or siding with a span rating of 16 inches on center is the
minimum recommended where applied direct to framing as exterior siding.
d. Except for wood structural panel sheathing used for shear walls that are part of the
seismic-force-resisting system, allowable shear values are permitted to be increased
to values shown for 15/32-inch sheathing with same nailing provided (a) studs are
spaced a maximum of 16 inches on center, or (b) panels are applied with long
dimension across studs.
e. Framing at adjoining panel edges shall be 3 inches nominal or wider, and nails shall
be staggered where nails are spaced 2 inches on center.
f. Framing at adjoining panel edges shall be 3 inches nominal or wider, and nails shall
be staggered where both of the following conditions are met: (1) 10d (3 inches by
0.148 inches) nails having penetration into framing of more than 1-1/2 inches and (2)
nails are spaced 3 inches on center.
g. Values apply to all-veneer plywood. Thickness at point of fastening on panel edges
governs shear values.
h. Where panels applied on both faces of a wall and nail spacing is less than 6 inches
o.c. on either side, panel joints shall be offset to fall on different framing members, or
framing shall be 3-inch nominal or thicker at adjoining panel edges and nails on each
side shall be staggered.
i. In Seismic Design Category D, E or F, where shear design values exceed 350
pounds per linear foot, all framing members receiving edge nailing from abutting
panels shall not be less than a single 3-inch nominal member, or two 2-inch nominal
members fastened together in accordance with Section 2306.1 to transfer the design
shear value between framing members. Wood structural panel joint and sill plate
nailing shall be staggered in all cases. See Section 2305.3.11 for sill plate size and
anchorage requirements.
j. Galvanized nails shall be hot dipped or tumbled.
k. Staples shall have a minimum crown width of 7/16-inch and shall be installed with
their crowns parallel to the long dimension of the framing members.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 10
I. For shear loads of normal or permanent load duration as defined by the AF&PA
NDS, the values in the table above shall be multiplied by 0.63 or 0.56, respectively.
m. [DSA-SS & OSHPD 1, 2 and 4] Refer to Section 2305.2.4.2, which requires any
wood structural panel sheathing used for diaphragms and shear walls that are part
of the seismic-force-resisting system to be applied directly to framing members.
n. The maximum allowable shear value for three-ply plywood resisting seismic forces
is 200 pounds per foot (2.92 kn/m).
15.08.060, HOLD-DOWN CONNECTORS, Section 2305.3.7.1 is hereby added
to Chapter 23 of the 2007 California Building Code to read as follows:
2305.3.7.1 Hold-down connectors. Hold-down connectors shall be designed to
resist shear wall overturning moments using approved cyclic load values or 75 percent
of the allowable earthquake load values that do not consider cyclic loading of the
product. Connector bolts into wood framing require steel plate washers on the post on
the opposite side of the anchorage device. Plate size shall be a minimum of 0.229 inch
by 3 inches by 3 inches (5.82 mm by 76 mm by 76 mm) in size. Hold-downs shall be re-
tightened just prior to covering the wall framing.
15.08.070 RIGID DIAPHRAGMS, Section 2305.2.5 of the 2007 California
Building Code is hereby amended to read as follows:
2305.2.5 Rigid Diaphragms. Design of structures with rigid diaphragms shall
conform to the structure configuration requirements of Section 12.3.2 of ASCE 7 and
the horizontal shear distribution requirements of Section 12.8.4 of ASCE 7.
Wood structural panel diaphragms shall not be considered as transmitting lateral
forces by rotation.
Rigid wood diaphragms are permitted to cantilever past the outermost supporting
shear wall (or other vertical resisting element) a length, I, of not more than 25 feet (7620
mm) or two-thirds of the diaphragm width, w, whichever is smaller. Figure 2305.2.5(2)
illustrates the dimensions of I and w for a cantilevered diaphragm.
Exception: Where calculations demonstrate that the diaphragm deflections can be
tolerated, the width is permitted to be increased and the I/w ratio is permitted to be
increased to 1.5 where sheathed in compliance with Section 2305.2.4 or 1 where
sheathed in compliance with Section 2306.3.4 or 2306.3.5.
15.08.080, SHEAR WALLS SHEATHED WITH OTHER MATERIALS, Section
2306.4.5 of the 2007 California Building Code is amended to read as follows.
2306.4.5 Shear walls sheathed with other materials. Shear wall capacities for
walls sheathed with lath, plaster or gypsum board shall be in accordance with Table
2306.4.5. Shear walls sheathed with lath, plaster or gypsum board shall be constructed
6019 071
ORDINANCE, AMENDMENTS TO TITLE 15
Page 11
in accordance with Chapter 25 and Section 2306.4.5.1. Walls resisting seismic loads
shall be subject to the limitations in Section 12.2.1 of ASCE 7. The allowable shear
values shown in Table 2306.4.5 for material in Category 1 is limited to 90 pound per foot
(1.31 kN/m); materials in Category 2 thru 4 are limited to 30 pound per foot (438 N/m).
Shear walls sheathed with lath, plaster or gypsum board shall not be used below the top
level in a multi-level building.
Table 2306.4.5 is added to read as follows:
TABLE 2306.4.5
ALLOWABLE SHEAR FOR WIND OR SEISMIC FORCES FOR SHEAR WALLS OF
LATH AND PLASTER OR GYPSUM BOARD WOOD FRAMED WALL ASSEMBLIES
FASTENER SHEAR
THICKNESS SPACING VALUEa'8 I MINIMUM FASTENER
TYPE OF OF WALL MAXIMUM Seismi
ci Wind SIZE`,a,►'k.I
MATERIAL MATERIAL CONSTRUCTION (inches)
1. Expanded No. 11 gage, 1-1/2" long,
metal, or woven 7/16" head
wire lath and 7/8" Unblocked 6 90 180 16 Ga. Galy. Staple, 7/8"
portland cement legs
plaster g
No. 13 gage, 1-1/8" long,
19/64" head,
2. Gypsum lath, 3/8" lath and plasterboard nail
plain or Unblocked 5 30 100 16 Ga. Galy. Staple, 1-
perforated 1/2" plaster 1/8" long
0.120" Nail, min. 3/8"
head, 1-1/4" Ion
1/2" x 2'x 8' Unblocked 4 30 75 No. 11 gage, 1-3/4" long,
7/16" head, diamond-
Blocked 4 30 175 point, galvanized
3. Gypsum 1/2" x 4'
sheathing Unblocked 7 30 100 16 Ga. Galy. Staple, 1-
3/4" Ion
4" edge/ 6d galvanized
5/8" x 4' Blocked 30 200 0.120" Nail, min. 3/8"
7" field head, 1-3/4" Ion
Unblocked 7 30 75
4. Gypsum Unblocked 4 30 110 5d cooler(1-5/8" Ix
board, gypsum Unblocked 7 30 100 0.086") or wallboard
veneer base or 1/2„ 0.120" Nail, min. 3/8"
water-resistant Unblocked 4 30 125 head, 1-1/2" long
gypsum backing 16 Gage Staple, 1-1/2"
board Blocked9 7 30 125 long
Blocked9 4 30 150
ORDINANCE, AMENDMENTS TO TITLE 15
Page 12
Unblocked 8/12' 30 60
Blocked' 4/16' 30 160
1/2»
Blocked' 4/12' 30 155 No. 6- 1-1/4" screws'
(cont.)
Blocked' 8/12' 30 70
Blocked' 6/12' 30 90
7 30 115 6d cooler(1-7/8"x
Unblocked 0.092") or wallboard
4 30 145 0.120" Nail, min. 3/8"
Gypsum board, 7 30 145 head, 1-3/4" long
gypsum veneer
Blocked' 16 Gage Staple, 1-1/2"
base or water- 4 30 175 legs, 1-5/8" long
resistant Base ply-6d cooler(1-
gypsum backing 7/8"x 0.092") or
board wallboard
(cont.) 1-3/4"x 0.120" Nail, min.
5/8" 3/8" head
Blocked' Base ply: 9 1-5/8" 16 Ga. Galy.
30 250 Staple
Two ply Face ply: 7 Face ply-8d ciiker(2-3/8"
x 0.113") or wallboard
0.120" Nail, min. 3/8"
head, 2-3/8" long
15 Ga. Galy. Staple, 2-
1/4" long
Unblocked 8/12' 30 70
No. 6- 1-1/4" screws'
Blocked' 8/12' 30 90
Notes to Table 2306.4.5
For SI: 1 inch = 25.4 mm, 1 foot=25.4 mm, 1 pound per foot= 14.5939 N/m.
a. These shear walls shall not be used to resist loads imposed by masonry or concrete construction
(see Section 2305.1.5). Values shown are for short-term loading due to wind or seismic loading.
Walls resisting seismic loads shall be subject to the limitations in Section 12.2.1 of ASCE 7. Values
shown shall be reduced 25 percent for normal loading.
b. Applies to fastening at studs, top and bottom plates and blocking.
c. Alternate fasteners are permitted to be used if their dimensions are not less than the specified
dimensions. Drywall screws are permitted to substitute for the 5d (1-5/8 inches by 0.086 inches), and
6d (1-7/8 inches by 0.092 inches)(cooler) nails listed above, and No. 6 1-1/4-inch Type S or W screws
for 6d (1-7/8 inches by 0.092 inches)(cooler) nails.
d. For properties of cooler nails, see ASTM C 514.
e. Except as noted, shear values are based on maximum framing spacing of 16 inches on center.
f. Maximum framing spacing of 24 inches on center.
g. All edges are blocked, and edge fastening is provided at all supports and all panel edges.
h. First number denotes fastener spacing at the edges; second number denotes fastener spacing at
intermediate framing members.
i. Screws are Type W or S.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 13
j. Staples shall have a minimum crown width of 7/16-inch, measure outside the legs, and shall be
installed with their crowns parallel to the long dimension of the framing members.
k. Staples for the attachment of gypsum loath and woven-wire lath shall have a minimum crown width of
%-inch, measured outside the legs.
I. This construction shall not be used below the top level of wood construction in a multi-level building.
15.08.090, CONVENTIAL CONSTRUCTION, Section 2308 of the 2007 California
Building Code is hereby amended to read as follows:
2308.3.4 Braced wall line support. Braced wall lines shall be supported by
continuous foundations.
2308.12.1 Number of stories. Structures of conventional light-frame construction
shall not exceed one story in height in Seismic Design Category D or E.
2308.12.2 Concrete or masonry. Concrete or masonry walls or masonry veneer
shall not extend above the basement.
Exception: Masonry veneer is permitted to be used in the first story above grade plane
in Seismic Design Category D, provided the following criteria are met:
1. Type of brace in accordance with Section 2308.9.3 shall be Method 3 and the
allowable shear capacity in accordance with Table 2306.4.1 shall be a minimum of
350 plf (5108 N/m).
2. The bracing of the first story shall be located at each end and at least every 25 feet
(7620 mm) o.c. but not less than 45 percent of the braced wall line.
3. Hold-down connectors shall be provided at the ends of braced walls for the first floor
to foundation with an allowable design of 2,100 pounds (9341 N).
4. Cripple walls shall not be permitted.
5. Anchored masonry and stone wall veneer shall not exceed 5 inches (127 mm) in
thickness, shall conform to the requirements of Division 14 and shall not extend
more than 5 feet (1524 mm) above the first story finished floor.
2308.12.4 Braced wall line sheathing. Braced wall lines shall be braced by one
of the types of sheathing prescribed by Table 2308.12.4 as shown in Figure 2308.9.3.
The sum of lengths of braced wall panels at each braced wall line shall conform to
Table 2308.12.4. Braced wall panels shall be distributed along the length of the braced
wall line and start at not more than 8 feet (2438 mm) from each end of the braced wall
line. Panel sheathing joints shall occur over studs or blocking. Sheathing shall be
fastened to studs, top and bottom plates and at panel edges occurring over blocking.
Wall framing to which sheathing used for bracing is applied shall be nominal 2-inch wide
factual 11/2-inch (38 mm)] or larger members, spaced a maximum of 16 inches on
ORDINANCE, AMENDMENTS TO TITLE 15
Page 14
center. Nailing shall be minimum 8d common placed 3/8 inches from panel edges and
spaced not more than 6 inches on center, and 12 inches on center along intermediate
framing members.
Braced wall panel construction types shall not be mixed within a braced wall line.
Braced wall panels required by Section 2308.12.4 may be eliminated when all of the
following requirements are met-
1. One-story detached garage Group U occupancies not more than 25 feet in depth or
length.
2. The roof and three enclosing walls are solid sheathed with Y2-inch nominal thickness
wood structural panels with 8d common nails placed 3/8 inches from panel edges
and spaced not more than 6 inches on center along all panel edges and 12 inches
on center along intermediate framing members. Wall openings for doors or windows
are permitted provided a minimum 4-foot wide wood structural braced panel with
minimum height to length ratio of 2 to 1 is provided at each end of the wall line and
that the wall line be sheathed for 50 percent of its length.
2308.12.5 Attachment of sheathing. Fastening of braced wall panel sheathing
shall not be less than that prescribed in Table 2308.12.4 or Table 2304.9.1. Wall
sheathing shall not be attached to framing members by adhesives.
All braced wall panels shall extend to the roof sheathing and shall be attached to
parallel roof rafters or blocking above with framing clips (18-gauge minimum) spaced at
maximum 24 inches (6096 mm) on center with four 8d nails per leg (total eight 8d nails
per clip). Braced wall panels shall be laterally braced at each top corner and at
maximum 24-inch (6096 mm) intervals along the top plate of discontinuous vertical
framing.
TABLE 2308.12.4
WALL BRACING IN SEISMIC DESIGN CATEGORIES D AND E
(Minimum Length of Wall Bracing per each 25 Linear Feet of Braced Wall Line a)
SHEATHIN
CONDITION G TYPE SDS< 0.50 0.50<SDS< 0.76:5 SD S< S DS > 1.00
0.75 1.00
G-P° 10 feet 8 14 feet 8 18 feet 8 inches 25 feet 0
One Story inches inches inches
S W 5 feet 4 inches 8 feet 0 inches 9 feet 4 inches 12 feet 0
inches
For SI: 1 inch = 25.4 mm, 1 foot= 304.8 mm.
a. Minimum length of panel bracing of one face of the wall for S-W sheathing shall be at least four feet
long or both faces of the wall for G-P sheathing shall be at least 8 feet long; h/w ratio shall not exceed
()00o,,;'S
ORDINANCE, AMENDMENTS TO TITLE 15
Page 15
2:1. For S-W panel bracing of the same material on two faces of the wall, the minimum length is
permitted to be one-half the tabulated value but the h/w ratio shall not exceed 2:1 and design for uplift
is required.
b. G-P = gypsum board, Portland cement plaster or gypsum sheathing boards; S-W = wood structural
panels-
c. Nailing as specified below shall occur at all panel edges at studs, at top and bottom plates and, where
occurring, at blocking:
For'/-inch gypsum board, 5d (0.113 inch diameter) cooler nails at 7 inches on center;
For 5/8-inch gypsum board, No 11 gage (0.120 inch diameter) cooler nails at 7 inches on center;
For gypsum sheathing board, 1-3/4 inches long by 7/16-inch head, diamond point galvanized nails at
4 inches on center;
For gypsum lath, No. 13 gage (0.092 inch) by 1-1/8 inches long, 19/64-inch head, plasterboard at 5
inches on center;
For Portland cement plaster, No. 11 gage (0.120 inch) by 11/2 inches long, '/16-inch head at 6 inches
on center;
d. S-W sheathing shall be 15/32-inch thick nailed with 8d nails, at 6:6:12.
15.08.100 FIRE HAZARD ZONE REQUIREMENTS. Chapter 36 is hereby
added to the California Building Code to read:
CHAPTER 36
FIRE HAZARD ZONE REQUIREMENTS
Section 3601. HIGH FIRE HAZARD AREA DEFINED. For the purpose of this
code, certain locations within the incorporated areas of the City of Moorpark shall be
classified as High Fire Hazard by the Ventura County Fire Protection District. The High
Fire Hazard Area is defined as any area within 500 feet of uncultivated brush, grass, or
forest-covered land wherein an authorized representative of said district determines that
a potential fire hazard exists due to the presence of such flammable growth.
Section 3602. CONSTRUCTION REQUIREMENT IN HIGH FIRE HAZARD
AREAS. The purpose of this Section is to provide a minimum standard for the fire
protection of buildings and structures hereafter erected in proximity to areas of the City
where concentrations of highly flammable brush, grass, or other combustible growth
combined with periods of hot, dry winds create a high fire hazard and where lives and
property may thereby be endangered.
Buildings or structures hereafter erected, constructed or moved within or into
designated high fire hazard areas shall be one of the Types of Construction as defined
in this Code and shall meet the requirements of this Section. Although their installation
is encouraged, neither manual nor automatic fire extinguishing systems or similar water
spraying devices may be substituted for the fire protection set forth herein.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 16
3602.1 ROOFS. Roof coverings shall be class A, or B as specified in Section
1505 of the California Building Code, except that no wooden shakes or shingles, treated
or untreated, shall be permitted.
3602.2 EXTERIOR WALLS. Fire-resistive protection of exterior walls and
openings, as determined by location and property, shall be as required by Section 704
in the CBC. Exception: No exterior wall covering of a building shall provide less fire
resistance than that afforded by; 7/8-inch exterior cement plaster; 1-inch nominal
thickness solid wood siding; Y2-inch textured plywood siding having a groove depth of
1/8-inch or less; 7/16-inch hardwood siding 5/8-inch particle board, exterior type 2-M; or
5/8-inch exterior plywood, Texture III, having a groove depth of %4-inch or less. Fire-
retardant treated or untreated wood shingle or shake siding shall not be permitted.
3602.3 UNDERFLOOR AREAS. Where under floor areas are not enclosed by
fire-resistive construction conforming to the requirements of Section 3601.2 above, the
underside of the floor system shall be fire-protected as set forth in Section 3602.4.
3602.4 PROJECTIONS AND OTHER BUILDING ELEMENTS EXPOSED TO
FIRE. Architectural projections such as roof overhangs and offsets, balconies and
decks, and other elements of buildings which have combustible structural elements in
the horizontal plane, shall be protected with materials approved for 1-hour fire-resistive
construction on the lower, fire-exposed side and shall have 1-hour fire-resistive
supporting columns unless the details of construction conform to those for heavy timber
as described in Section 602.4 in the CBC.
Exceptions:
1. Combustible structural members in horizontal projections may be unprotected timbers
of size 4 inches by 6 inches or larger when used as rafters or as stair, balcony, or deck
supports or for similar purposes.
2. Heavy timber roof decking at eaves and rakes may be unprotected provided a fascia
of not less than 2-inch nominal thickness and not less in depth than the cut end of the
rafter is installed at the roofs edge.
3. Patios, carports, arbors and open latticework sunshades may be constructed of any
materials allowed by this Code.
4. Balconies and decks 30 inches or more above grade may have flooring of not less
than 2-inch nominal thickness lumber or material of equivalent fire resistance. Such
flooring may be spaced not more than %-inch apart and need not be fire protected on
the underside.
5. Balconies and decks less than 30 inches above grade shall be solidly floored without
gaps and shall be fire-protected on the underside as required by this Section. In lieu of
ORDINANCE, AMENDMENTS TO TITLE 15
Page 17
fire protection, such balconies and decks may be enclosed from floor surface to grade in
the manner prescribed for exterior walls in Section 3602.2.
6. Combustible exterior columns directly supporting roofs, stairs, balconies, and decks
may be size 4 inches by 4 inches or larger. Columns and beams supporting interior
floor loads may be size 6 inches by 6 inches or larger.
3602.5 VENTILATION OPENINGS. Attic or foundation ventilation openings or
louvers shall not be located at or immediately below, eaves, or rakes, offsets or
balconies, or similar exterior overhangs which may be directly exposed to a fire in
adjacent hazardous grass or brush areas.
Section 3603. WAIVER OF REQUIREMENTS. The Building Official may waive
the requirements of CBC•Sec. 3601.1 through 3602.5 above, in whole or in part, for
specific construction projects within the High Fire Hazard Area when such waiver is
approved by an authorized representative of the Ventura County Fire Protection District,
based upon site conditions which justify a reduction in fire resistance.
15.08.110 FOUNDATION INVESTIGATION. Section 1802.4 is hereby amended
to read:
Section 1802.4 INVESTIGATION. The classification of soil shall be based on
observation and necessary tests of the materials disclosed by borings or excavations
made in appropriate locations. Additional studies may be required to evaluate soil
strength, the effect of moisture variation on soil bearing capacity, compressibility,
liquefaction and expansiveness.
Whenever, in the opinion of the Building Official, the adequacy and stability of a building
site cannot be determined by the test borings or excavations required by this Section,
he may require a special geologic, hydrologic, seismic, or other investigation and report.
Geologic investigations such as those for hillside stability or seismic hazards shall be
conducted by California-certified Engineering Geologist.
15.08.120 GRADING ENFORCEMENT BY CITY ENGINEER. The definition of
Building Official contained in Section 202 of the Building Code is hereby amended to
read:
Section 202 BUILDING OFFICIAL. Is the officer or other designated authority
charged with the administration and enforcement of this Code, except Appendix
Chapter J, or his/her duly authorized representative. The Authority designated to
enforce Appendix Chapter J shall be the City Engineer.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 18
15.08.130 SWIMMING POOLS. CHAPTER 37 is hereby added to the Uniform Building
Code to read:
CHAPTER 37
SWIMMING POOLS
Section 3701 DEFINITIONS. For the purpose of this Article certain terms are
hereby defined as follows:
"Pool" shall mean any body of water created by artificial means which is
designed or used for swimming or immersion purposes by men, women, or children and
which has a water depth exceeding 18 inches. The term "pool" shall include swimming
pools; spas, hot tubs and above and below ground vinyl-lined pools but does not apply
to plumbing fixtures such as bathtubs; nor does it apply to man-made lakes, reservoirs,
or farm ponds used primarily for public park purposes, water conservation, irrigation, or
watering of livestock.
Section 3702 POOL DESIGN AND CONSTRUCTION.
3702.1 GENERAL. Pool design and construction shall be in accordance with
accepted engineering practice, shall be in conformity with applicable provisions of the
adopted building, electrical, plumbing, and mechanical codes, and shall be structurally
suitable for the soil, topographic, and geologic conditions prevailing at the construction
site.
3702.2 EXPANSIVE SOIL DESIGN. Pools constructed at grade shall be
designed on the assumption that their construction is to be in an area of moderately
expansive soil having an expansion index of 51-90 and an equivalent fluid pressure of
not less than 45 pounds per cubic foot (45 p.c.f.). Exception: Where tests indicate that
soils at a pool site are non-expansive or have low expansion characteristics from the
ground surface to the full depth of the pool, structural design may be based on an
equivalent fluid pressures not less than 30 p.c.f.
In highly expansive soils having an expansion index of 91-130, pools shall be
designed for not less than 60 p.c.f. equivalent fluid pressure. In very highly expansive
soils having an expansion index over 130, pool design shall be subject to special
requirements based on a site investigation, soil testing, and engineering analysis by a
registered civil engineer to determine appropriate design parameters for the site.
3702.3 HYDROSTATIC UPLIFT. In areas of anticipated high water table, an
approved hydrostatic relief system or device shall be installed.
3702.4 THERMAL PROTECTION FOR PLASTIC PIPING. Between the inlet of
pool water heating equipment and any plastic water piping connected thereto, a check
(�G(.l+ 9
ORDINANCE, AMENDMENTS TO TITLE 15
Page 19
valve shall be installed to prevent thermal damage to such piping due to backflow.
Exception: When rapid or high-rate filters are employed, a check valve may be omitted.
Between the outlet of pool heating equipment and any plastic water piping connected
thereto, not less than 5 feet of approved metal pipe shall be installed for the purpose of
dissipating heat.
3702.5 SAFEGUARDING SUCTION DRAINS. Bottom drains and suction
intakes in pools and spas shall be covered with grated or other protective devices which
cannot be removed except with tools. The slots or openings in these covers shall be of
such area, shape, and arrangement as to prevent bathers from being drawn thereto with
such force as to constitute a safety hazard.
3702.6 GRAB BARS. Wherever egress from a pool by bathers is restricted by
the presence of a vertical wall or other barrier which extends more than 12 inches
above the water at the pool's edge, permanent handrail, grab bars, or equivalent
device(s) shall be installed within 12 inches of the water surface, capable of being
securely grasped and adequate to support the weight of a user of the pool.
Section 3703 DECKS
3703.1 GENERAL. A deck shall be provided around below-grade swimming
pools except when special engineering design is furnished which indicates that such
deck is not necessary for the purpose of maintaining the structural integrity of the pool
and/or for controlling surface water and moisture content in the soil adjacent to the pool.
Decks shall not be required for spas and hot tubs.
3703.2 DECK DESIGN AND CONSTRUCTION. Required decks shall be
constructed of concrete or other approved impervious material and shall be sloped to
provide positive drainage away from the perimeter of the pool. Except as provided
below, decks shall have a minimum width of four feet and shall be at least 3 1/2 inches
in thickness. Reinforcement shall be #3 bars spaced not over 24 inches on center each
way, or equivalent reinforcing,
Approved joints shall be provided in the deck at corners, at maximum 10 foot
intervals, and wherever necessary in order to control cracking, to allow for differential
movement and to minimize damage to the deck from such movement should it occur.
Joints in decks and coping shall be made watertight with an approved permanent
resilient sealant.
3703.3 CUTOFF WALLS. At the outer perimeter of pool decks a cutoff wall of
approved material shall be installed below-grade to a depth of at least 15 inches so as
to form a permanent and effective vertical moisture barrier.
t 0 0t3 0
ORDINANCE, AMENDMENTS TO TITLE 15
Page 20
Exceptions:
1. A cutoff wall may be omitted when a deck at least 6 feet wide is installed.
2. Decks less than four feet in width may be installed provided that the required cutoff
wall is increased in depth beyond the minimum by an amount directly proportional to the
reduction in deck width.
3703.4 PRE-SATURATION, HIGHLY EXPANSIVE SOILS. When the soil below
a deck has an expansion index of 91 or greater, it shall be saturated with water to a
depth of at least 18 inches prior to installation of the deck.
Section 3704. DRAINAGE AND DISPOSAL
3704.1 SURFACE WATER. Surface water from pool decks shall be collected
and conducted through non-erosive devices to a street, storm drain, or other approved
watercourse or disposal area.
3704.2 WASTEWATER. Pool waste shall be disposed of in accordance with the
requirements of the Health Officer.
3704.3 DRYWELLS. Drywells shall not be employed for pool wastewater
disposal except when specifically approved for the purpose and when it has been
determined that such installation is not likely to have adverse effects on the structural
stability of the pool or other structures on the site. The Building Official may require a
percolation test, soils report, and/or geological report to make such a determination.
Section 3705. SPECIAL INSPECTION. Special inspection shall be provided for
pneumatically placed concrete (gunite) in swimming pools.
Section 3706. FENCING AND GATES. Any person, firm, or corporation in
possession of land either as owner in fee, purchaser under contract, lessee, tenant,
licensee or any type of legal estate upon which is situated a pool as defined above shall
at all times maintain on the lot or premises a fence or wall not less than five feet in
height which completely surrounds such pool or body of water provided, however, that a
dwelling or accessory building may be used as a part of such enclosure. Said fence
shall be constructed of durable material and shall be designed to withstand a horizontal
force of at least 20 pounds per lineal foot at the top of the fence or top of the railing.
Openings, holes, or gaps therein shall be no larger than 4 inches wide except for
openings closed by doors or gates. Fences shall not have a configuration which
provides a ladder-like access to the pool area.
Each gate or door opening through a pool enclosure shall be equipped with a self-
closing and self-latching device capable of keeping the gate or door securely closed at
all times when not in use.
t�o vt. e"A'
ORDINANCE, AMENDMENTS TO TITLE 15
Page 21
Exceptions:
1. Doors in Group R, Division 1, 2 and 3 occupancies which form part of a pool
enclosure.
2. Gates used primarily for ingress and egress of equipment but not persons to the pool
area, and which are kept padlocked when not in use.
Required latching devices shall be installed not less than 60 inches above ground level
and on the water side of the gate.
The Building Official may make modifications and accept alternatives to the
fencing requirements in individual cases upon a showing of good cause with respect to
the height, nature or location of the fence, wall, gates, or latches, or the necessity
therefor, provided that protection is not reduced thereby.
CHAPTER 15.12
ELECTRICAL CODE
1E 14.010 ELECTRICAL CODE ADOPTED, except as hereinafter provided, the
Californiz Electrical Code, 2007 Edition, published by the National Fire Protection
Associat )n is hereby adopted by reference as the Electrical Code of the City of
Moorparl . A copy of the California Electrical Code, 2007 Edition, shall be maintained in
the office of the City Clerk of the City of Moorpark and shall be made available for public
inspectio i while this Code is in force.
15.14.020 ADMINISTRATIVE PROVISIONS DELETED. The Administrative
Provisions governing the Electrical Code, including violation and penalty provisions shall
be as set forth in Chapter 15.04 of the Municipal Code of the City of Moorpark.
CHAPTER 15.14
PLUMBING CODE
15.14.010 PLUMBING CODE ADOPTED. Except as hereinafter provided, the
California Plumbing Code, 2007 Edition, published by the International Association of
Plumbing and Mechanical Officials, is hereby adopted by reference as the Plumbing
Code of the City of Moorpark. A copy of the California Plumbing Code 2007 Edition shall
be maintained in the office of the City Clerk of the City of Moorpark and shall be made
available for public inspection while this Code is in force.
15.14.020 ADMINISTRATIVE PROVISIONS. The Administrative provisions
governing the Plumbing Code, including violation and penalty provisions shall be as set
forth in Chapter 15.04 of the Municipal Code of the City of Moorpark.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 22
15.14.030 Section 202.0 DEFINITIONS is hereby amended to read:
Section 202.0. SEMI-PUBLIC- Semi-public shall be defined as a building,
swimming pool or area serving more than one person but not available to the general
public.
15.14.030 FLOOR DRAINS REQUIRED is hereby added to the California
Plumbing Code to read:
Section 411.1 In restrooms adjacent to semi-public swimming pools, a minimum
of one (1) floor drain shall be provided in each restroom for each sex. Floor drains shall
be connected to the public sewer in accordance with Section 305.1 of this Code. The
traps serving these floor drains shall be installed in accordance with Sections 1006.0
and 1007.0 of this Code.
CHAPTER 15.16
MECHANICAL CODE
15.16.010 MECHANICAL CODE ADOPTED, except as hereinafter provided, The
California Mechanical Code, 2007 Edition, published by the International Association of
Plumbing and Mechanical Officials, is hereby adopted by reference as the Mechanical
Code of the City of Moorpark. A copy of the California Mechanical Code, 2007 Edition
shall be maintained in the office of the City Clerk of the City of Moorpark and shall be
made available for public inspection while this Code is in force.
15.16.020 ADMINISTRATIVE PROVISIONS. The Administrative Provisions
governing the Mechanical Code, including violation and penalty provisions, shall be as
set forth in Chapter 15.04 of the Municipal Code of the City of Moorpark.
CHAPTER 15.18
HOUSING CODE
15.18.010 HOUSING CODE. Except as hereinafter provided the International
Property Maintenance Code, 2006 Edition, published by the International Conference of
Building Officials, is hereby adopted by reference as the Housing Code of the City of
Moorpark, A copy of the International Property Maintenance Code, 2006 Edition, shall
be maintained in the office of the City Clerk of the City of Moorpark and shall be made
available for public inspection while this Code is in force.
15.18.020 SUBSTANDARD BUILDINGS. Section 108 Unsafe Structures and
Equipment of the International Property Maintenance Code is amended to read as set
forth in Section §17920. 3 of the Health and Safety Code of the State of California. A
Copy of Section §17920.3 of the Health and Safety Code of the State of California shall
be maintained in the office of the City Clerk of the City of Moorpark and shall be made
available for public inspection while this Code is in force.
(x�� � 63
ORDINANCE, AMENDMENTS TO TITLE 15
Page 23
CHAPTER 15.20
DANGEROUS BUILDINGS
15.20.010 DANGEROUS BUILDING CODE ADOPTED. Excepted as hereinafter
provided, the International Property Maintenance Code, 2006 Edition, is adopted as the
Dangerous Buildings Code of the City of Moorpark. A copy of the International Property
Maintenance Code, 2006 Edition shall be maintained in the office of the City Clerk of the
City of Moorpark and shall be made available for public inspection while this Code is in
force."
SECTION 2. AMENDMENTS NECESSARY. Pursuant to Section §17958.5 of
the Health and Safety Code of the State of California, The City Council of the City of
Moorpark hereby finds that the amendments of the California Building Code, 2007
Edition, California Plumbing Code, 2007 Edition, California Mechanical Code, 2007
Edition, and California Electrical Code, 2007 Edition, made by this Ordinance are
reasonably necessary due to local climatic, geological, or topographical conditions.
SECTION 3. If any section, subsection, sentence, clause, phrase, part or portion
of this Ordinance is for any reason held to be invalid or unconstitutional by any court of
competent jurisdiction, such decision shall not affect the validity of the-remaining portions
of this Ordinance. The City Council declares that it would have adopted this Ordinance
and each section, subsection, sentence, clause, phrase, part or portion thereof,
irrespective of the fact that any one or more section, subsections, sentences, clauses,
phrases, parts or portions be declared invalid or unconstitutional.
SECTION 4. This Ordinance shall become effective thirty (30) days after its
passage and adoption.
ORDINANCE, AMENDMENTS TO TITLE 15
Page 24
SECTION 5. The City Clerk shall certify to the passage and adoption of this
ordinance; shall enter the same in the book of original ordinances of said City; shall make
a minute of the passage and adoption thereof in the records of the proceedings of the City
Council at which the same is passed and adopted; and shall, within fifteen (15) days after
the passage and adoption thereof, cause the same to be published once in the Moorpark
Star a newspaper of general circulation, as defined in Section 6008 of the Government
Code, for the City of Moorpark, and which is hereby designated for that purpose.
PASSED AND ADOPTED this day of 12007.
Patrick Hunter, Mayor
ATTEST:
Deborah S. Traffenstedt, City Clerk
ORDINANCE, AMENDMENTS TO TITLE 15
Page 23
CHAPTER 15.20
DANGEROUS BUILDINGS
15.20.010 DANGEROUS BUILDING CODE ADOPTED. Excepted as hereinafter
provided, the International Property Maintenance Code, 2006 Edition, is adopted as the
Dangerous Buildings Code of the City of Moorpark. A copy of the International Property
Maintenance Code, 2006 Edition shall be maintained in the office of the City Clerk of the
City of Moorpark and shall be made available for public inspection while this Code is in
force."
SECTION 2. AMENDMENTS NECESSARY. Pursuant to Section §17958.5 of
the Health and Safety Code of the State of California, The City Council of the City of
Moorpark hereby finds that the amendments of the California Building Code, 2007
Edition, California Plumbing Code, 2007 Edition, California Mechanical Code, 2007
Edition, and California Electrical Code, 2007 Edition, made by this Ordinance are
reasonably necessary due to local climatic, geological, or topographical conditions.
SECTION 3. If any section, subsection, sentence, clause, phrase, part or portion
of this Ordinance is for any reason held to be invalid or unconstitutional by any court of
competent jurisdiction, such decision shall not affect the validity of the remaining portions
of this Ordinance. The City Council declares that it would have adopted this Ordinance
and each section, subsection, sentence, clause, phrase, part or portion thereof,
irrespective of the fact that any one or more section, subsections, sentences, clauses,
phrases, parts or portions be declared invalid or unconstitutional.
SECTION 4. This Ordinance shall become effective thirty (30) days after its
passage and adoption.
(1 :00 Ei
ORDINANCE, AMENDMENTS TO TITLE 15
Page 24
SECTION 5. The City Clerk shall certify to the passage and adoption of this
ordinance; shall enter the same in the book of original ordinances of said City; shall make
a minute of the passage and adoption thereof in the records of the proceedings of the City
Council at which the same is passed and adopted; and shall, within fifteen (15) days after
the passage and adoption thereof, cause the same to be published once in the Moorpark
Star a newspaper of general circulation, as defined in Section 6008 of the Government
Code, for the City of Moorpark, and which is hereby designated for that purpose.
PASSED AND ADOPTED this day of 12007.
Patrick Hunter, Mayor
ATTEST:
Deborah S. Traffenstedt, City Clerk
f .' Edl `7