HomeMy WebLinkAboutAGENDA REPORT 1995 1115 CC REG ITEM 11FCITY OF MOORPARK
AGENDA REPORT
TO: The Honorable Mayor and Members of the
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City Council.
FROM: Jim MacDonald, Building Inspectio
DATE: November 1, 1995 (CC Meeting of Nov, 15,
SUBJECT: Adoption of Revised Building Codes
Introduction
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ACTION:
This meeting was noticed as a public hearing. However, state law requires that the
City Council set the public hearing, not staff. Therefore, this notice does not represent
conformance with state law. The action that staff has recommended that the City Council
take tonight is meant to comply with the state noticing requirements.
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 to address
local concerns. The State does, however, 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 California Building Standards Code must be adopted by January 1, 1996.
(Health and Safety Code Section § 18941.5). If the City fails to adopt the state mandated
Standards by this date, the Standards will automatically go into affect statewide. The City
will have forfeited any opportunity to adopt local amendments without an urgency
ordinance. (Health and Safety Code Section § 18941.5 and 1995 California Building
Standards Code Section 101.11.2)
The codes are as follows:
Uniform Building Code, 1994 Edition, Volumes 1, 2 and 3, with Amendments.
Uniform Plumbing Code, 1994 Edition with Amendments
Uniform Mechanical Code, 1994 Edition
National Electrical Code, 1993 Edition
Uniform Code for the Abatement of Dangerous Buildings 1994 Edition
Uniform Housing Code 1994 Edition
Uniform Administrative Code 1994 Edition, with Amendments
Uniform Code for Building Conservation, 1994 Edition
Attachment #1 is the draft ordinance adopting these codes and is presented for the
Council's consideration.
Discussion
Proposed adoption and subsequent Amendments to the mandated codes fall into
three categories, Building Standards, Administrative and Post Regulatory (for existing
buildings).
The various codes are written by several different organizations and as such, each has a
different set of administrative provisions. Due to the lack of consistency, it is proposed
that the administrative provisions of the various codes be removed. The Uniform
Administrative Code should be adopted in their place to provide a consistent set of
administrative provisions for all building codes.
Proposed amendments to the building standards
A. Uniform Building Code:
Additional requirements for grading, geology and foundations are
necessary because the City is partially a hillside community where
expansive soils are present.
2. Based on investigations after the 1994 Northridge Earthquake.
The following amendments are proposed:
a. Allowable shear values for plywood, gypsum and stucco shear
walls are reduced. (This will mean that the shear strength must be
increased through the use of other materials or engineering design.)
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b. The use of stucco and gypsum shear walls on the ground floor
of any multi -story building and self furring lath for all stucco shear
walls shall be eliminated.
C. 3 x sill plates shall be required for all shear walls with design shear
exceeding 300 lbs.
d. The use of rotation for the distribution shear forces shall be limited.
B. Uniform Plumbing Code:
A floor drain shall be installed in bathrooms adjacent to semi-
public swimming pools such as recreation centers.
C. Uniform Mechanical Code: None.
D. National Electric Code: None.
Proposed Amendments to the Administrative provisions
A. Uniform Administrative Code:
The Fee schedule has been removed from the code and is to be adopted
by resolution instead of ordinance. This is being done for convenience
because the adoption of a resolution is less cumbersome than the adoption
of an ordinance. Fees are reviewed more often than codes and this will
allow the fees to be revised without rewriting codes.
2. Clarification has been incorporated to assure that contract service providers
are protected by the same immunity laws as public employees.
Post Regulatory Codes
A. Uniform Housing Code:
Once building codes are adopted there remains a need to adopt a code to
assure that housing is maintained in a safe manner. If the city wishes to
continue to require the correction of unsafe housing conditions then the
first step will be to declare that certain conditions are in violation of the
City's Codes, as adopted. It is often not practical to declare a building in
violation of the Building, Plumbing, Mechanical or Electrical Codes
because almost all buildings will have been built before the adoption of the
most recent codes and could, technically, be declared in violation. The
solution is to provide a single document which contains more general
language defining unsafe conditions. The Uniform Housing Code is the document
which has been created for this purpose.
B. Uniform Code for the Abatement of Dangerous Buildings:
The adoption of the Uniform Code for the Abatement of Dangerous
Buildings is necessary due to the age and condition of various buildings in
the City of Moorpark. This Code provides a system that the Building
Official can use for the abatement and demolition of dangerous buildings. It
also provides a method of cost recovery when the city incurs the debt of
abatement.
C. Uniform Code for Building Conservation:
The adoption of the Uniform Code for Building Conservation provides a
guideline in code format which will give a community a means to preserve
its existing buildings while achieving appropriate levels of safety.
Code adoption process
Health and Safety Code Section § 18941.5 requires the California Building
Standards Code to be enforced 180 days after the date of publication (July 1, 1995).
Government Code Section § 6066 requires that a public hearing be held to adopt
the revised building codes. Prior to the public hearing, the adoption ordinance must have a
first reading and then be noticed two times, five days apart, in a newspaper of general
circulation.
If the Council adopts the revised building codes as presented, the amendments
made by the City of Moorpark will go into effect 30 days after the date of adoption. The
California Building Standards Code will automatically go into effect on January 1, 1996.
Codes available for review
Pursuant to state law, the codes being considered for adoption and amendment are
available for public review in the Office of the City Clerk, located at 799 Moorpark Ave,
Moorpark California, 93021.
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Fiscal impact
The cost to construct a 3500 square foot single family home is approximately
$250,000.00. The construction cost pursuant to the above revised and amended building
codes is estimated to increase one to three percent, or $2500.00 to $7500.00. It should
also be noted that the two current developers in Moorpark, (California Community
Builders and Warmington Homes) have voluntarily decided to construct to these codes
since September, 1995 and have therefore already been impacted by the increased costs.
Recommendation
I) Introduce and give first reading of the attached City Council Ordinance adopting
revised Building Codes as outlined above.
2) Instruct staff to advertise the public hearing and second reading for December 6,
1995 in the manner prescribed by law.
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Permissible deflection shall be that deflection up to which the diaphragms
and any attached distributing or resisting element will maintain its
structural integrity under assumed load conditions, i.e., continue to support
assumed loads without danger to occupants of the structure.
Connections and anchorage's capable of resisting the design forces shall be
provided between the diaphragms and the resisting elements. Openings in
diaphragms which materially affect their strength shall be fully detailed
on the plans and shall have their edges adequately reinforced to transfer
all shearing stresses.
Size and shape of diaphragms shall be limited as set forth in Table 23 -I -I
In masonry or concrete buildings, and in all buildings in Seismic Zone 3 or
4 , lumber, or plywood diaphragms shall not be considered as transmitting
lateral forces by rotation.
EXCEPTION: One story, residential garages or similar non habitable,
wood framed structures or portions of structures may be designed as
transmitting rotational forces in all seismic zones.
In buildings of wood frame construction where rotation is provided for, the
depth of the diaphragm normal to open side (width) shall not exceed 25
feet or two thirds the diaphragm width, whichever is the smaller depth.
Straight sheathing shall not be permitted to resist shears in diaphragms
acting in rotation.
EXCEPTION: 1. One story wood framed structures with the
depth normal to the open side not greater 25 feet may have a depth equal
to the width.
EXCEPTION: 2. Where calculations show that diaphragm
deflections can be tolerated, the depth normal top the open end may be
increased to a depth -to -width ratio not greater than 1 1/2:1 for diagonal
sheathing or 2:1 for special diagonal sheathing or plywood diaphragms.
Diaphragm sheathing nails or other approved sheathing connectors shall be
driven flush, but shall not fracture the surface of the sheathing.
15.08.070 TABLE 25 -I of the Uniform Building Code is hereby
amended to read: (See Attachment #1)
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TABLE 25 -I, Footnote #5. This construction shall only be used in the
top level of a multi level building.
TABLE 25 -1, Footnote #6 The maximum height -to- length ration for
shear walls constructed of these materials shall not exceed one(l).
TABLE 25 -I, Footnote #7 Self furring lath attached with staples may
be permitted for non - structural application only
15.08.080 HEIGHT TO LENGTH RATIO, Section 2513.4 is hereby
amended to read:
Section 2513.4 The maximum allowable height to length ratio for
the construction in this section in this section shall be limited to one (1).
1.5.08.090 FIRE HAZARD ZONE REQUIREMENTS. Chapter 36 is hereby
added to the Uniform Building Code to read:
CHAPTER 36
FIRE HAZARD ZONE REQUIREMENTS
Sec. 3601. HIGH FIRE HAZARD AREA DEFINED. For the purpose of this
code, certain locations within the incorporated areas of the City of
Moorpark may 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.
Sec. 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.
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3602.1 ROOFS. Roof coverings shall be class A, or B as specified
in Section 1504 of the Uniform 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 503 in the UBC. 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;
1/2 -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 exterior plywood, Texture III, having a groove depth of 1/4 -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 3601.4.
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 605.6 in the UBC.
Exceptions:
Combustible
structural members
in horizontal
projections may be
unprotected
timbers of size 4x6
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 roof's 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 1/4
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 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 4x4 or larger. Columns and beams
supporting interior floor loads may be size 6x6 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 UBC 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.
15.08.100 FOUNDATION DESIGN. Section 1804.2 and 1804.7 are
hereby amended to read:
Section 1804.2 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.
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Section 1804.7 Drainage, provisions shall be made for the control
and drainage of surface water around buildings. The Building Official may
require that all storm and excess irrigation water be directed to a street
storm drain, natural drainage course, or other approved location in
approved non- erosive devices .
15.08.110 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:
Chapter.
"Pool" shall be as defined in Section 420 of Appendix 4 of this
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.
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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 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 five 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 o /c. each way, or equivalent
reinforcing,
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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.
Exception: 1. A cutoff wall may be omitted when a deck at least six
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
directed to a street storm drain, natural drainage course, or other
approved location in approved non - erosive devices .
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 waste
water 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 as required
by Section 1701 in the UBC shall be provided for pneumatically placed
concrete (gunite) in swimming pools .
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15.08.120. BARRIERS FOR SWIMMING POOLS, SPAS AND HOT
TUBS. APPENDIX CHAPTER 4, SECTION 419, 420, AND 421.1.1 is hereby
amended to read
Section 419. The provisions of this section apply to 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 in this chapter.
Section 420. SWIMMING POOL shall mean any body of water
created by artificial means which is designed, intended or used for
swimming or immersion purposes by men, women and/or children; or for
decoration or ornamentation; or for the breeding, or maintenance of fish or
waterfowl; or for the purpose of landscape features, and which has a water
depth exceeding eighteen (18) inches. The term "swimming pool" shall
include koi- ponds, fish ponds, ornamental fountains, and reflecting pools.
Section 421.1.1. The top of the barrier shall be at least 60 inches
above grade measured on the side of the barrier which faces away from
the swimming pool. The maximum vertical clearance between grade and
the bottom of the barrier shall be two (2) inches measured on the side of
the barrier which faces away from the swimming pool. The maximum
vertical clearance between grade and the bottom of the barrier may be
increased to four (4) inches when grade is a solid surface such as a
concrete deck, or when the barrier is mounted on top of the aboveground
pool structure. When barriers have horizontal members spaced less than
45 inches apart, the horizontal members shall be placed on the pool side of
the barrier. Any decorative design work on the side away from the
swimming pool, such as protrusions, indentations or cut outs, which render
the barrier easily climbable, is prohibited.
CHAPTER 15.12
ELECTRICAL CODE
15.14.010 ELECTRICAL CODE ADOPTED, except as hereinafter
provided, the National Electrical Code, 1993 Edition, published by the
National Fire Protection Association is hereby adopted by reference as the
Electrical Code of the City Of Moorpark. A copy of the National Electrical
Code, 1993 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.
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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 Uniform Plumbing Code, 1994 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 Uniform Plumbing Code 1994 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 DELETED. The
Administrative provisions of the Uniform Plumbing Code, 1994 Edition,
contained in Volume 1 of that Code except sections 101.1 and 101.2 are
hereby deleted. 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.
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 Uniform
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.
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CHAPTER 15.16
MECHANICAL CODE
15.16.010 MECHANICAL CODE ADOPTED, except as hereinafter
provided, The Uniform Mechanical Code, 1994 Edition, published by the
International Conference of Building Officials, is hereby adopted by
reference as the Mechanical Code of the City of Moorpark. A copy of the
Uniform Mechanical Code, 1994 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 DELETED. The
Administrative provisions of the Uniform Mechanical Code, 1994 Edition,
contained in Volume 1 except sections 101.1 and 101.2 are hereby deleted.
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
Uniform Housing Code, 1994 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 Uniform Housing Code,
1994 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. Chapter 10 of the Uniform
Housing 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.
CHAPTER 15.20
DANGEROUS BUILDING CODE
15.20.010 DANGEROUS BUILDING CODE ADOPTED. Excepted as
hereinafter provided, the Uniform Code for the Abatement of Dangerous
Buildings, 1994 Edition, is adopted as the Dangerous Buildings Code of the
City of Moorpark. A copy of the Uniform Code for the Abatement of
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Dangerous Buildings, 1994 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.
CHAPTER 15.22
CONSERVATION BUILDING CODE
15.022.010 BUILDING CONSERVATION CODE ADOPTED. Except as
hereinafter provided, the Uniform Code for Building Conservation, 1994
Edition, is adopted as the Building Conservation Code of the City of
Moorpark. A copy of the Uniform Code for Building Conservation, 1994
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
Uniform Building Code, 1994 Edition, Uniform Plumbing Code, 1994 Edition,
Uniform Housing Code, 1994 Edition, made by this Ordinance are
reasonably necessary due to local climatic, geological, or topographical
conditions.
SECTION 3. SEVERABILITY. If any section, subsection, sentence,
clause, phrase or word of this Ordinance is for any reason held to be
invalid by a Court of competent jurisdiction, such decision shall not affect
the validity of the remaining portions of this Ordinance. The City Council
hereby declares that it would have passed and adopted this Ordinance and
each and all provisions thereof, irrespective of the fact that any one or
more of said provisions may be declared invalid.
SECTION 4. The City Clerk shall certify to the passage and adoption
of this ordinance by a majority vote of the City Council; 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 in the manner prescribed by law.
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PASSED AND ADOPTED this day of 1995.
ATTEST:
City Clerk
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Mayor of the City of Moorpark,
California
ORDINANCE
AN ORDINANCE OF THE CITY OF MOORPARK CALIFORNIA,
AMENDING TITLE 15 OF THE MOORPARK MUNICIPAL CODE BY
AMENDING CHAPTERS 15.04, 15.08, 15.12, 15.14, 15.16, 15.18,
15.20 AND ADDING CHAPTER 15.22; ADOPTING BY REFERENCE
AND AMENDING THE CURRENT EDITIONS OF CERTAIN MODEL
CODES AS FOLLOWS: UNIFORM BUILDING CODE, VOLUMES 1, 2,
& 3, 1994 EDITION; NATIONAL ELECTRICAL CODE, 1993
EDITION; UNIFORM PLUMBING CODE, 1994 EDITION; UNIFORM
MECHANICAL CODE, 1994 EDITION; UNIFORM HOUSING CODE,
1994 EDITION; UNIFORM CODE FOR THE ABATEMENT OF
DANGEROUS BUILDINGS, 1994 EDITION; UNIFORM CODE FOR
BUILDING CONSERVATION, 1994 EDITION; UNIFORM
ADMINISTRATIVE CODE, 1994 EDITION.
WHEREAS, Government Code Section §50022.3, et sea., 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 notice 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: Uniform Administrative Code,
1994 Edition; Uniform Building Code, 1994 Edition, Volumes 1, 2 & 3;
including the Fire Resistive Design Manual, Thirteenth Edition, dated April
1993; National Electrical Code, 1993 Edition; Uniform Plumbing Code,
1994 Edition; Uniform Mechanical Code, 1994 Edition; Uniform Housing
Code, 1994 Edition; Uniform Code for the Abatement of Dangerous
Buildings, 1994 Edition; Uniform Code for Building Conservation, 1994
Edition; together with amendments thereto;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF
MOORPARK, CALIFORNIA, DOES ORDAIN AS FOLLOWS:
SECTION 1. That Title 15 of the Moorpark Municipal Code is
amended to read as follows;
1
CHAPTER 15.04
ADMINISTRATIVE PROVISIONS
15.04.010 ADMINISTRATIVE CODE ADOPTED. Except as hereinafter
provided the Uniform Administrative Code, 1994 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 Uniform Administrative Code, 1994 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.
1.5.04.020 PERMIT FEES. Section 304.2 of the Uniform
Administrative Code is hereby amended to read:
Section 304.2 PERMIT FEES. The fee for each permit shall be as set
forth by resolution of the City Council of the City of Moorpark.
The determination of value or valuation under any of the provisions
of these Codes shall be made by the Building Official. The value to be used
in computing the building permit and building plan review fees shall be
the total value of all construction work for which the permit is issued as
well as all finish work, painting, roofing, electrical, plumbing, heating, air -
conditioning, elevators, fire - extinguishing systems and any other
permanent equipment.
15.04.030 PLAN REVIEW FEES. Section 304.3 of the Uniform
Administrative Code is hereby amended to read:
Section 304.3 PLAN REVIEW FEES. When submittal documents are
required by Section 302.2, a plan review fee shall be paid at the time of
submitting the submittal documents for plan review. The plan review fee
shall be as set forth by resolution of the City Council of the City of
Moorpark.
The plan review fees specified in this subsection are separate fees
from the permit fees specified in Section 304.2 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 as
set forth by resolution of the City Council of the City of Moorpark.
15.04.040 LIABILITY. Section 202.9 of the Uniform Administrative
Code is hereby amended to read:
2
Section 202.9 LIABILITY. The Building Official, or his 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 personally liable for any damage
that may accrue to persons or property as a result of any act or by reason
of any act or omission in the discharge of his duties. Any suit brought
against the Building Official, agent or employee because of such act or
omission performed by him 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
authorized representative are employees of this jurisdiction and shall also
apply if the Building Official or his authorized representative 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.
3
(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.
(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 in
the county jail 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 Uniform Building Code, 1994 Edition, Volumes 1, 2, & 3, and Appendix
Chapters, 4, 15, except Sections 1517.3 and 1517.4; 29 and 33, published
by the International Conference of Building Officials, including the Fire
Resistive Design Manual, Thirteenth Edition, April 1993, published by the
Gypsum Association as referenced in Tables 7 -A, 7 -B, & 7 -C; ANSI /ASME
A17.1, 1987 Safety Code for Elevators and Escalators, including
supplements A17.la -1988, A17.lb -1989, and to ANSI /ASME A17.3a-
1986, Safety Code for Existing Elevators and Escalators, including
supplements A17.3a -1989, Published by the American Society of
Mechanical Engineers, are hereby adopted by reference as the Building
Code of the City of Moorpark. A copy of the Uniform Building Code, 1994
Edition, Volumes 1, 2, & 3 shall be maintained in the office of the City Clerk
in the City of Moorpark, and shall be made available for public inspection
while this Code is in force.
15.08.020 ADMINISTRATIVE PROVISIONS DELETED. The
Administrative Provisions of the Uniform Building Code, 1994 Edition,
contained in Volume 1 of that Code except Sections 101.1 and 101.2 are
hereby deleted. The Administrative provisions governing the Building
Code, including violation and penalty provision, shall be as set forth in
chapter 15.04 of the Municipal Code of the City of Moorpark.
11
15.08.030 FOUNDATION DESIGN. Section 1804.7.1 is hereby added
and TABLE 18 -1 -D is hereby amended to read:
Section 1804.7.1. When buildings are located on expansive soil
having an expansion index greater than 50, gutters, down spouts, piping,
and /or other non - erosive devises shall be provided to collect and conduct
rain water to a street, storm drain, or other approved watercourse or
disposal area.
TABLE 18 -1 -D. (See attachment #1)
15.08.040 PLYWOOD DESIGN. TABLE 23 I -1 and TABLE 23 -1 -K -1 are
hereby amended to read: (See Attachment #1)
TABLE 23 -I -1 The maximum height -to -width ratio for vertical
diaphragms shall be 2:1.
TABLE 23 I -K -I Footnote #6 For plywood shear walls rated at more
than 300 pounds per foot, 3 x nominal members shall be provided at all
panel edges and boundary's. The minimum edge distance for nailing at
these members shall be 1/2".
TABLE 23 I -K -1 Footnote #7 The shear values listed in this table
shall be reduced to seventy five (75) percent for short term seismic
loading.
15.08.050 BOLT HOLES. Section 2311.2.1 Is hereby added to read:
Section 2311.2.1 Bolt holes shall be not more than 1/16" oversized at
the connection of hold -downs to posts and shall be tightened a minimum of
1/2 turn beyond finger tight or as required by the manufacturer.
15.08.060 Section 2314.1 GENERAL is hereby amended to read:
Section 2314.1 General. Lumber, wood structural panel and
particleboard diaphragms may be used to resist horizontal forces in
horizontal and vertical distributing or resisting elements, provided the
deflection in the plane of the diaphragm, as determined by calculations,
tests or analogies drawn therefrom, does not exceed the permissible
deflection of attached distributing or resisting elements. See U.B.C.
Standard 23 -2 for a method of calculating the deflection of a blocked wood
structural panel diaphragm.
5
Attachment #1
Table of Contents:
1. Table 18 -1 -D
2. Table 23 -I -I
3. Table 23-1-K-1
4. Table 25-1
Table 18- 1- D— Foundations for stud bearing walls — minimum requirements'' 10'11,12
V'dcu)I lt.,d
Foundation for slab and raised floor systems "''
Concrete slabs
:xpanslun
Pre- moisteneing
Restrictions on
No of
Stem
Footing
Fooling
All perimete
Interior footings
Reinforcement
3 -1/2' minimum thickness
index
stones
thickness"
width
thickness
footings'
for slab and
for continuous
4' with E.I. over 51
of suits under
piers under
Reinforcement it
Total
raised floors°
foundations 'I a
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
1.114
#4 ® 48' o/c..
Moistening of ground
Piers allowed for
Very low
non expans ve
2
3
6
10
15
1 18
7
8
1 B
24
18
24
Top and
bottom
each way
or
p3 0 48' o/c..
2"
prior to placing concrete
is recommended
single floor
loads only
21 -50
1
6
12
6
15
12
1 -114
3% over optimum moisture required
Piers allowed for
I.ow
2
3
8
10
15
18
7
8
18
24
18
24
Top and
bottorn
each way
4"
o a depth of 18" below lowest adjacent
grade. Testing required.
single floor
loads only
51 -90
Med'Int
1
2
6
8
12
15
B
8
21
21
12
18
144 lop
and bottom
#3 ® 48" o.c.
each way
4"
3% over optimum moisture required
to a depth of 18" below lowest adjacent
Piers riot
p3 bars ® 48" o.c. each way
3
10
18
8
24
24
grade. Testing required
allowed
12" into looting, 36" into slab 10
91 -t 3n
1
6
12
8
27
12
2- N4
q3 (d 48" o c.
3% over optimum moisture required
I hyl r
2
B
15
B
21
1 B
Top 8 bottom
each way
4"
to a depth of 1 B' below lowest adjacent
Piers not
3
10
18
8
27
24
03 bars ® 48" o c each way
grade. Testing required
allowed
12" into looting, 36" into stab 10
Above 130
Special design by a licensed Architect or Engineer required
very lu�jll
_ .._...., ._ . _ ,..... ....._.. ................... ,,1.,,1, ,,, 1-1, ,,, ,,,1,,1.e ,„,,,,,,,,,,,, ,,,,„ „ 1 y. ,rein ui wit jnwnu consmiaron mus ummn suuaulal distress. caused b
9 ` � y uneven expansion and shrinkage
i nhci _y..' �n:, wna<h aW nut ulchlJr j.rb urn:,lemuy m,ly be aj>p, —d by the Bolding Otti —I wri„i .u1, aft— lativb" are ,hown to proviJs equivalent saleegu,ad, against due adverse cued" ill uq,answe situ
IhlJer it-, ji co— a,nvl ticles :,hall be prwidbd with pubs extenduly not less than sit (o) -h, ,drovu adjacent grade to I—venl "'dace water horn -wing the foundation area
J Reim„ i, m—t lul rontinuuo" toundehons'hail be placed nut less than 3" above Ihb 1,000m of tlrb Iwtmg and not Ives than 3" below the tup of the "tern
4 Sl.a. —lit acenlbnl shall be placed al slab tr ddepth and continue to within Iwu (2) inches of the extenor lace of the extenor Iwhng walls
M.a,hne Wiaeui shall be m,untarned until foundations and peers are poured and a vapor W—t o mstallW Tests shall W taken with in 24 hours of each slab pair
u I,rrvl q,aeeo under raced llucr, need no be pie as. —lened exc l t under int—ul Iwhngs Intel- luutings which are not euciu"W by a cunhnuuu, peumbtei tuwdation system or equivalent concrete or masonry moisture barrier complying with
Jbctwn Id(k 2, shall be de,ayned and constructed as specified for perimeter footings in this table
A grade beam awl less than 12" x 12 in cross sedanal area, reinforced as specified In this table shall be provided at garage door openings
It Fwnd.dun stem walls wluch exceed a I-yht of fine. (3) nine, the stem Ihtknes, above the lowe "t adjacent grade shall lrt remlorcW In accordance with Chapters 16 and 19 of this code or as requited by engineering design,
winch ever Is.no,b re "ti",ve
1, Fuuuny wnllh" Inay be r Wuced upon subnutlal of calculations by a Registered Civil or Structural Engineer or licensed Aichlea bul shall be a minimum of twelve (12) inches for one and two story structures and
f tt—i 0 5) metres for ill— ,tiny `.I- cInrb.
10 Bwll leenlurpny bars Wtwbbn exibnur Wing and slab shall be onuhed when the floor is designed as an independent. "Boating" slab
I I F ugA.aee la- -tiny, ,hall be reantacW w1h a horizontal yid located three (3) inches above the In atom of due lwtiug and cuna,uny of not less thanM4 bars at 12 inches o e each way
Vertical chuuney rbudoreny ban shall be hooked under the gild
12 Iludi,rylound utility conduits shall be m"bJIW pilot to foundation inspection and shall extend above and beyond the foundation so that final connection will not under mine the finished ( oundation
Table 23 -1 -1— Maximum diaphragm dimension ratios
Material
Horizontal
diaphragms
Vertical
diaphragms
Maximum span -width
Maximum height -width
ratios
ratios
1. Diagonal sheathing, conventional
3 to 1
2 to 1
2. Diagonal sheathing, special
4 to 1
" "tea 2 to 1
3. Wood structural panels and particleboard, nailed all edges
4 to 1
3 "�te4 2 to 1
4. Wood structural panels and particleboard, blocking
omitted at intermediate joints
4 to 1
2 to 1
Table 23 -I -K -1 Allowable shear for wind or seismic forces in pounds per square foot for wood structural panel shear
walls with framinq of Dou las fir -larch or Southern pine 1,2.7
Panel grade
Minimum
nominal panel
Iulckness
(Inches)
Minimum nail
penetration
In framing
(Inches)
Panels applied directly to training
Panels applied over 112 inch (13mm) or 518 Inch (16mm) gypsum sheathing
Nail size
(Common or
galvanized box)
Nall spacing at panel edges (inches)
Nail size
(Common or
galvanized box)
Nall spacing at panel edges (Inches)
x 25 4 lot mm
x 25 4 for mm
6 4 1 3 2'
6 4 1 3 2'
x 25.4 for mm
x 0.0146 for N /mm
x 0.0146 for N /mm
suuctutal t
5116'
1 114'
6d
200
300
390`
510`
Bd
200
300
3906
510`
3.'B'
1172'
Bd
230
360"
460'°
610'6
1Od'
280
430`
550°
730'
7'16'
255'
395 "'
505"
670'6
15132'
280
430 6
550 6
730,
15/32'
1 518'
1 O '
340'
5106
6656
8706
-
- -
-
� ) C C
.�h —lhmg plywood
panel s,dmg grid other
"'J,s covered in U l3 C
A".'I td 23 2 or 23 3
5/16'
l 1!4'
6d
180
270
350`
450'
8d
180
270
350`
450'
3:8'
200
300
390'
510'
200
300
390 "
510 `
318'
1 IV
Bd
220'
320"
410 "
530 "'
10d'
260
380 °
490 `'
640'
7116'
240'
350 "
450"
585 "
15'32'
260
380"
490 °
640'
15'32'
1 511B'
10d'
310'
460 °
1 600'
770'
1 9'32'
340'
510`
665'
870'
Nall size
(galvanized
casing)
Nail size
(galvanized
casing)
i'I,wood papal aiding
nu adta,
nir�•J n116C
r;t.,ndad 23 2
516'
1 114'
6d
140
210
275
360'
8d
140
210
275
360'
J:8'
1 12'
Bd
160
240
310'
410'
10d'
160
240
310`
410'
zll p.,nel edges baCited with 2 ch (51 min) nominal or wider Iralmng Panels Installed on her hop zo tit ally or verocally Space nails at 6 mchns(152 mrn) on center along Intermediate limning niombers lot 3 ,'B Inch (9 5mm) andT16 inch (11 mm) panels
anal allad un stud, spaced 24 Inches (610 min) on cenlw and 12 inches (305 inmIon cantor lot other conditions and panel thickness' 1 hes6 values are lot short time loads due to wind or earthquake and must be reduced 25 percent lot normal loading
Allowable cheat values lot nails In training members of other species set lonh In Table 23 111FF of Division III shall be calculated for all oluer
yi,advs by nmlhplying the shunt eapact6as lot nails In Juuclulal 1 by the following factors. 0.82 lot species with specific gravity greater than or equal to 0.42 but less than 0 49. and 0, 65 lot species with a specific gravity less than 0 42
Where panels are applied on both faces of a wall and nail spacing Is less than 6 inches (152 mm) on center on either side, panel pints shall be offset to tall on different framing members oI training shall be 3 inch (76 mm) nominal or wider
and nails On each side shall be staggered.
3 f ianung at adjoining panel edges shall be 3 Inch (76 mm) nominal or wider and nails shall be staggered where nails are spaced 2 inches (51 mm) on center.
4 The values lot 3/8 Inch (9 5mm) and 7116 inch (11 min) panels applied direct to binung may be increased to the values shown for 15,'32 -inch (12 mm) panels, provided sluds are spaced a maximum of 16 (406 mm) Inches on center and panels are
appli,,J with long dimensions across studs.
.i fiat 9 at adjoining panel edges shall be 3 inch (76 mm) nominal or wider and nails shall be staggered where 10d nails having penetration into framing of more than 1 518 Inches (41 mm) are spaced 3lnehes (76 mm) or less on center
L, F it uly'A "U +Udl- lotalla 1,11QS1 -r11 MUH1.IWLI I49 QQuj Sly. l2E1J44L 3.JM LU610101 DQWLUI mem1161s shall J;IM Lijuvi iYit1.11.r 311Wine11i51SJS24 -AW Q4UaJALwk- 1hfi.mInI 1LOL9dgildistance tot nabjina at these members shall 121L] 12 inch
L Ili st eau alus11671 d JO lbbi 1ALLAlu1l ttaluju"Ll. lu Zb- utlIL01111415 011lgati"iLmIGJ4i11ltOg-
Table 25A ALLOWABLE St LEAH FOR WIND AND SEISMIC FORCES IN POUNDS PER FOOT
FOR VERTICAL DIAPI IRAGMS OF LA I H AND PLASTER OR GYPSUM BOARD FRAME WALL ASSEMBLIES'
IYPF OF MATERIAI-
THICKNESS OF
MAIEHIAL
WALL
CONSIHUCTI
NAIL SPACING
MAXIMUM
(In Inches)
SHEAR VALUE
MINIMI, 1M NAIL SIZE"
SEISMIC
WIND
1 Expanded metal, or woven
wire lath and poriland cement
plaster
lie'
Unblocked
6
90
180
No. 11 gage, 1 -112" long, 7/16" head, galvanized with a
1/4" nail furring pad required for woven wire
No-. - -16 gage sta le; 718'' legs
2 Gypsum lath
3/8" lath and
112" plaster
Unblocked
5
30
100
No, 13 gage, 1 -1/8" long, 19/64" head, plasterboard
blued nail
3 Gypsum sheathing board
1/2" x 2' x 8'
Unblocked
4
30
75
No. 11 gage, 1 -3/4" long, 7/16" head, diamond point,
galvanized
1/2" x 4'
1/2" x 4'
Blocked
Unblocked
4
7
30
30
175
4 Gypsum wall board or
veneer base
1/2
Unblocked
7
30
60
5d cooler or wallboard
4
30
125
Blocked
7
30
125
4
30
150
5/8
Unblocked
7
30
115
6d cooler or wallboard
4
30
145
Blocked
7
30
145
4
30
175
Blocked
Two ply
Base ply: 9
Face ply: 7
30
1
250
Base ply -6d cooler or wallboard
Face ply-8d cooler or wallboard
I hese vertical diaphragms shall not be used to resist loads imposed by masonry or concrete construction. See Section 2513.2. Values are for short term loading due
lu wind. - The- vakresAor gypsurn preciueks tress. .� �Pereent fer dynarnie leaelirjg dae le�aftl rrHk�in and 4:
2 Applies to nailing at all studs, lop and bottom plates and blocking
3 Alternate nails may be used if their dimensions are not less than the specified dimensions.
4 For properties of cooler or wallboard nails, see UBC Section 2340.1.2.
5 1 his construction shall only be used in the top level of a multi -level building
6 The maximum height -to- length ratio for shear walls constructed of these materials shall not exceed one (1).
Self furring lath attached with staples may be permitted for non - structural application only