Ord 669
ORDINANCE NO. 669
AN ORDINANCE OF THE CITY OF POWAY, CALIFORNIA, ADDING CHAPTER 15.05
TO THE POWAY MUNICIPAL CODE, REGARDING THE POWAY WILDLAND-URBAN
INTERFACE CODE, WHICH ADOPTS BY REFERENCE THE INTERNATIONAL
WILDLAND-URBAN INTERFACE CODE, 2006 EDITION, WITH CERTAIN
AMENDMENTS, ADDITIONS, AND DELETIONS
WHEREAS, the International Wildland-Urban Interface Code, 2006 Edition,
regulates and governs the mitigation of hazard to life and property from the intrusion of
fire from wildland exposures, fire from adjacent structures, and prevention of structure
fires from spreading to wildland fuels in the City of Poway, and provides for the issuance
of permits and collection of fees therefore.
WHEREAS, sections 50022.1 through 50022.10, inclusive, of the Government
Code and section 17958 of the Health and Safety Code, provide authority for the
adoption by reference of Codes, or portion of such Codes; and
WHEREAS, the City of Poway has identified a need to adopt by reference the
International Wild/and-Urban Interface Code, together with changes and modifications
for local conditions, to create a City of Poway Wildland-Urban Interface Code; and
WHEREAS, Health and Safety Code sections 17958.5 and 17958.7 authorize the
City of Poway to make changes and modifications to State Code and regulations that
the City adopts by reference, if such changes are reasonably necessary because of
local climatic, geological or topographical conditions; and
WHEREAS, the City Council of the City of Poway finds that the City of Poway
has certain climatic, geologic, and topographical features that can have a deleterious
effect on emergency services such as fire protection and emergency medical services;
and
WHEREAS, the City Council finds that the modifications and changes to the
International Wildland-Urban Interface Codes are reasonably necessary because of the
local climatic, geological, and topographical conditions as identified in Attachment D;
and
WHEREAS, certain amendments to the Internationa/ Wildland-Urban Interface
Code, 2006 Edition, serve to mitigate, to the extent possible, said deleterious effects.
NOW THEREFORE, The City Council of the City of Poway does ordain as follow:
SECTION 1: Chapter 15.05 is hereby added to the Poway Municipal Code to
read as follows:
Ordinance No. 669
Page 2
15.05.010 Adoption of Wildland-Urban Interface Code
The City of Poway adopts by reference, the 2006 Edition of the Internationa/
Wildland-Urban Interface Code as published by the International Code Council, as the
Wild/and-Urban Interface Code of the City of Poway, except those portions that are
deleted, modified, or amended by this chapter. One copy of the above-mentioned Code
has been, and is now filed, in the office of the City Clerk or the Fire Marshal, City of
Poway, and the same is adopted and incorporated as fully as if set out at length herein,
with the deletions, modifications, and amendments set forth in this chapter. From the
effective date of the ordinance codified in this chapter, its provisions shall be controlling
within the limits of the City of Poway.
15.05.020 Administration
Section 101.1 is modified to read as follows:
101.1 Title. These regulations shall be known as the Wild/and-Urban Interface
Code of City of Poway, hereinafter referred to as "this Code."
Section 101.5 is modified to read as follows:
101.5 Additions or Alterations. Additions or alterations may be made to any
building or structure without requiring the existing building or structure to comply with all
of the requirements of this Code, provided the addition or alteration conforms to that
required for a new building or structure.
Exception: Provisions of this Code that specifically apply to existing conditions
are retroactive. See sections 402.3 and 601.1. Additions or alterations shall not be
made to an existing building or structure that will cause the existing building or structure
to be in violation of any of the provisions of this Code, nor shall such additions or
alterations cause the existing building or structure to become unsafe. Additions or
alterations of an existing building or structure constitute unsafe conditions in the
following circumstances: (1) where the addition or alteration causes the building or
structure to become structurally unsafe or overloaded; (2) where the addition or
alteration causes the building or structure to have inadequate access, as required by
this Code, or causes the obstruction of existing exits or access; (3) where the addition
or alteration creates a fire hazard or reduces required fire resistance; or (4) where an
addition or alteration otherwise creates conditions dangerous to human life.
When additions are made to an existing structure and the addition is within the
100-foot defensible space, such addition shall be in accordance with setback distances
as set forth in this Code, including Sections 504.1.2, 504.1.4, 505.1.2, and 505.1.3.
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Page 3
Section 101.6 is modified to read as follows:
101.6 Maintenance. All buildings, structures, landscape materials, vegetation,
defensible space, or other devices or safeguards required by this Code shall be agent
maintained in conformance with this Code. The owner or the owner's designated
shall be responsible for the maintenance of buildings, structures, landscape materials,
and vegetation.
Section 101.7 is added to read as follows:
101.7 Guidance Documents. The Planning Authority Having Jurisdiction (PAHJ)
may prepare, circulate for public comment, disseminate, and maintain guidance
documents addressing the methods of ignition-resistant construction described in this
Code.
These guidance documents may set out additional compliance alternatives that,
in specified circumstances, can provide the same protection that is afforded by the
methods required by this Code. These guidance documents may also identify practices
that have been determined by PAHJ and the Fire Authority Having Jurisdiction (FAHJ)
to be equivalent, and they may include additional new fire-resistive technologies as they
become available.
15.05.30 Appeals.
Section 104 is modified to read as follows:
104 Appeals. Section 104 is deleted in its entirety. Appeals shall be governed
by section 15.24.160 of the locally adopted Fire Code.
15.05.40 Permits
Section 105 is modified to read as follows:
Section 105 is deleted in its entirety. Permits shall be governed by section
15.24.150 of the locally adopted Fire Code.
15.05.050 Plans and Specifications - Maps
Section 106.3.1 is added to read as follows:
106.3.1 Maps. Any person constructing a new development, which necessitates
updating of emergency response maps by virtue of new structures, hydrants, roadways
or similar features, shall be required to provide map updates in a format (PDF and/or
CAD format as approved by the FAHJ) or compatible with current department mapping
services, and shall be charged a reasonable fee for updating all response maps.
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Section 106.4 hereby is modified to read as follows:
106.4 Vegetation Management Plans. When utilized by the permit applicant
pursuant to section 502, vegetation management plans shall be prepared and shall be
submitted to the Code official for review and approval as part of the plans required for a
permit.
Section 106.7.1 is added to read as follows:
106.7.1 Accuracy. While it is important for the information on the vicinity plan be
accurate, it shall not require the precision of a formal land survey.
15.05.060 Definitions.
The definition of "Accessory Structure" in section 202 is modified to read as
follows:
Accessory Structure. A building or structure used to shelter or support any
material, equipment, chattel or occupancy other than a habitable building (see
Structu re).
The definition of "Building Official" in section 202 is modified to read as follows:
Building Official. The officer or other designated authority charged with the
administration and enforcement of the locally adopted California Building Code, or the
building official's duly authorized representative.
A definition of "Combustible Vegetation" is added to section 202 as follows:
Combustible Vegetation. Material that in its natural state will readily ignite, burn
and transmit fire from the vegetative growth to any structure, including, but not limited to
ground fuels which are any native or landscape vegetation not considered a tree and
generally in contact with the ground.
A definition of "Discretionary Project" is added to section 202 as follows:
Discretionary Project. A project which requires the public agency to exercise
judgment or deliberation when deciding to approve or disapprove a particular activity, as
distinguished from situations where the public agency or body merely has to determine
whether there has been conformity with applicable statutes, ordinances, or regulations.
A definition of "Fire Authority Having Jurisdiction (FAHJ)" is added to section 202
as follows:
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Page 5
Fire Authority Having Jurisdiction (FAHJ). The designated entity providing
enforcement of fi re regulations as they relate to planning, construction and
development. This entity may also provide fire suppression and other emergency
services.
A definition of "Fire Code" is added to section 202 as follows:
Fire Code. The California Fire Code, as locally adopted with amendments.
The definition of "Fire Code Official" is added to section 202 as follows:
Fire Code Official. Fire Code Official shall have the same definition as set forth
in the locally adopted Fire Code.
The definition for "Fuel, Heavy" in section 202 is modified to read as follows:
Fuel, Heavy. Vegetation consisting of round wood 3 to 8 inches in diameter.
Heavy fuels include, but are not limited to dense conifer stands where there is a heavy
accumulation of litter and downed woody material. See applicable National Fire Danger
Rating system (NFDR) fuel models G and U, as described in Appendix D.
The definition for "Fuel, Light" in section 202 is modified to read as follows:
Fuel, Light. Vegetation consisting of herbaceous plants and round wood less
than 1/4 inch in diameter. Light fuels include, but are not limited to western grasslands
vegetated by annual or perennial grasses and forbs. Grasses and forbs are the primary
ground fuel, but there can be enough needle litter and branch wood present from an
open pine stand to contribute to the fuel loading. See applicable National Fire Danger
Rating system (NFDR) fuel models A, C, and L, as described in Appendix D.
The definition for "Fuel, Medium" in section 202 is modified to read as follows:
Fuel, Medium. Vegetation consisting of round wood 1/4 to 3 inches in diameter.
Medium fuels include, but are not limited to mature, dense fields of California mixed
chaparral. See applicable National Fire Danger Rating system (NFDR) fuel models B
and F, as described in Appendix D.
A definition for "Fuel Modification Zone" is added to section 202 as follows:
Fuel Modification Zone. A strip of land where combustible vegetation has been
modified and partially or totally replaced with approved drought-tolerant, fire-resistant,
and/or irrigated plants to provide an acceptable level of risk from vegetation fires. Fuel
modification reduces radiant and convective heat, thereby reducing the amount of heat
exposure on the roadway or structure and providing fire suppression forces a safer area
in which to take action.
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A definition for "Hazardous Fire Area" is added to section 202 as follows:
Hazardous Fire Area. Any geographic area mapped by the State or local
jurisdiction as a high, or very high fire hazard area, or as set forth by the FAHJ that
contains the type and condition of vegetation, topography, weather, and structure
density to potentially increase the possibility of vegetation conflagration fires shall be
considered a hazardous fire area.
The definition for "Hazardous Materials" in section 202 is modified to read as
follows:
Hazardous Materials. Hazardous Materials shall have the same meaning as set
forth in section 202 of the locally adopted Fire Code.
The definition of "Ignition-Resistant Construction Class 3" in section 202 is
hereby deleted.
A definition for "Ignition Source" is added to section 202 as follows:
Ignition Source. Any item or substance capable of energy release of a type and
magnitude sufficient to ignite any flammable materials that could occur in or outside of a
structure. Examples of Ignition source include, storage or use of flammable gases and
flammable liquids, permanent or temporary electrical wiring, and open flame devices.
A definition for "Ignition-Resistant Material" is added to section 202 as follows:
Ignition-Resistant Material. Any product which, when tested in accordance with
California Building Code Standard 8-1 for a period of 30 minutes, shall have a flame
spread rating of not over 25 and show no evidence of progressive combustion. In
addition, the flame front shall not progress more than 10-1/2 feet beyond the centerline
of the burner at any time during the test.
Materials shall pass the accelerated weathering test and be identified as Exterior
type, in accordance with California Building Code Standard 23-4. All materials shall
bear identification showing the fire performance rating thereof. That identification shall
be issued by ICC-ES/ICBO-ES or a testing facility recognized by the State Fire Marshal
having a service for inspection of materials at the factory.
Fire-Retardant-Treated Wood as defined in section 207 or noncombustible
materials as defined in section 215 shall satisfy the intent of this section.
The enforcing agency may use other definitions of ignition-resistant material that
reflect wildfire exposure to building materials and/or their materials performance in
resisting ignition.
A definition of "Roof Covering" is added to section 202 as follows:
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Roof Covering. Roofs shall comply with the California Building Code and have a
minimum Class A roof covering. For roof coverings where the profile allows a space
between the roof covering and roof decking, the space at the eave ends shall be fire
stopped to preclude entry of flames or embers.
Exception: On qualified historical buildings, wood roof covering may be repaired
or reconstructed as allowed by the State Historical Building Code.
A definition for "Off-site Roadway" is added to section 202 as follows:
Off-site Roadway. A road, street, public highway, or private road used for fire
apparatus access from a publicly maintained road to the boundary of the subject
property.
A definition for "On-site Roadway" is added to section 202 as follows:
On-site Roadway. A road, street, public highway, private road, or driveway used
for fire apparatus access within the boundaries of the subject property or land division.
A definition for "Planning Authority Having Jurisdiction (PAHJ)" is added to
section 202 as follows:
Planning Authority Having Jurisdiction (PAHJ). The identified authority regulating
and enforcing planning and/or construction standards.
The definition for "Structure" in section 202 is modified to read as follows:
Structure. A residence and attached garage, building, or related facility that is
designed primarily for human use or habitation or buildings designed specifically to
house farm animals.
Decking, fences, and similar facilities are not considered structures for the
purposes of establishing the limits of the fuel modification zone. Free standing open
sided shade covers, sheds, gazebos, and similar accessory structures less than 250
square feet and 30 feet or more from the main building are not considered structures for
the purposes of this appendix. (See Accessory Structure.)
A definition for "Vegetation Conflagration" is added to section 202 as follows:
Vegetation Conflagration. An uncontrolled fire spreading through vegetative
fuels, and exposing and consuming structures in the advancing path of fire.
A definition for "Wildland Fuel" is added to section 202 as follows:
Wildland Fuel. Any timber, brush, grass, or other flammable vegetation, living or
dead, standing or down, that is not classified as fire-resistive.
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Page 8
The definition of "Wildland-Urban Interface Area" in section 202 is modified to
read as follows:
Wildland-Urban Interface Area. That geographical area where structures and
other human development meet or intermingle with wildland or vegetative fuels. This
area is designated or identified as a hazardous fire area as determined by the FAHJ
(see the definition of Hazardous Fire Area).
A definition for "Wildfire" is added to section 202 as follows:
Wildfire. An uncontrolled fire spreading through vegetative fuels, exposing and
possibly consuming structures.
15.05.070 Wildland-Urban Interface Areas.
Section 302.1 is modified to read as follows:
302.1 Declaration. The legislative body shall declare the Wildland-Urban
Interface Areas within the jurisdiction. The Wildland-Urban Interface Areas shall be
based on findings of fact. The Wildland-Urban Interface Area boundary shall be any
geographic area mapped or otherwise identified by the State or local jurisdiction as a
High Fire Hazard, or Very High Fire Hazard area, or as set forth by the FAHJ. When
the type and condition of vegetation, topography, weather, and structure density, which
potentially increases the probability of vegetation conflagration, exists, such area shall
be considered a Hazardous Fire Area.
Section 401.3 is hereby deleted.
15.05.090 Applicability.
Section 402.1 is modified to read as follows:
402.1. Subdivisions. New subdivisions, as determined by this jurisdiction, shall
be provided with fire apparatus access roads in accordance with the locally adopted
Fire Code and access requirements in accordance with section 403.
Section 402.1.1 is modified to read as follows:
402.1.1 Access. New subdivisions, as determined by this jurisdiction, shall be
provided with fire apparatus access roads in accordance with the locally adopted Fire
Code and access requirements in accordance with section 403.
Section 402.2.1 is modified to read as follows:
402.2.1 Access. Individual structures hereafter constructed or relocated into or
within Wildland-Urban Interface Areas shall be provided with fire apparatus access in
Ordinance No. 669
Page 9
accordance with the locally adopted Fire Code and driveways in accordance with
section 403.2. Marking of fire protection equipment shall be provided in accordance with
section 403.5 and address markers shall be provided in accordance with section 403.6.
Section 402.2.2 is modified to read as follows:
402.2.2 Water Supply. Individual structures hereafter constructed or relocated
into or within Wildland-Urban Interface Areas shall be provided with a conforming water
supply in accordance with the locally adopted Fire Code.
Exceptions:
1. Structures constructed to meet the requirements for the class of ignition-
resistant construction specified in Table 503.1 for a nonconforming water supply.
2. Buildings containing only private garages, carports, sheds, and agricultural
buildings with a floor area of not more than 500 square feet.
15.05.100 Access.
Section 403.2 is modified to read as follows:
Section 403.2. Driveways. Driveways shall be provided when any portion of an
exterior wall of the first story of a building, measured in an approved manner, is located
more than 150 feet from a fire apparatus access road. Driveways shall provide a
minimum unobstructed width of 16 feet and a minimum unobstructed height of 13 feet 6
inches. Driveways in excess of 150 feet in length shall be provided with turnarounds.
Driveways in excess of 200 feet in length and less than 24 feet in width, shall be
provided with turnouts in addition to turnarounds. A driveway shall not serve more than
two improved parcels containing dwelling units. Driveway turnarounds shall have inside
turning radii of not less than 28 feet and outside turning radii of not less than 45 feet.
Driveways that connect with a road or roads at more than one point may be considered
as having a turnaround if all changes of direction required to make the turnaround meet
the radii requirements for driveway turnarounds. Driveway turnouts shall be an all-
weather road surface at least 10 feet wide and 30 feet long.
The turnout requirement can be waived or modified for existing driveways that comply
with the minimum width requirement listed in this section, if in the opinion of the fire
chief, such turnouts will require substantial roadway modification and/or alteration to
such driveway.
Driveway turnouts shall be located as required by the fire code official. Vehicle load
limits shall be posted at both entrances to bridges and on driveways and private roads
containing bridges. Design loads for bridges shall be established by the code official.
Section 403.3 is modified to read as follows:
Ordinance No. 669
Page 10
403.3. Fire Apparatus Access Road. Fire apparatus access road shall comply
with the locally adopted Fire Code.
15.05.110 Water Supply
Section 404.5 is modified to read as follows:
404.5 Adequate Water Supply. In Hazardous Fire Areas as defined in the locally
adopted Fire Code; the water main capacity for new subdivisions shall not be less than
8 inches in diameter, unless otherwise approved by the Chief and the City Engineer.
Fire hydrant flow shall exceed a minimum of 1,500 gallons per minute with a minimum
residual flow pressure of 20 psi, water flow velocity not to exceed 15 feet per second
and capable of providing un interruptible flow capability.
For occupied structures outside of the City of Poway water service area,
adequate water supply shall be determined for purposes of initial attack and flame front
shall be provided as defined within Table 508.2.2 of the California Fire Code, as
amended by the City of Poway.
Section 404.6 is hereby deleted.
15.05.120 Fire Protection Plan.
Section 405.1 is modified to read as follows:
405.1 General. When required by the Fire Code Official, a fire protection plan
shall be prepared.
Section 405.2 is modified to read as follows:
405.2 Content of Wildland Fire Protection Plan. The Wildland Fire Protection
Plan may be based upon a community, site-specific wildfire risk assessment that is
developed in consultation with local and State government representatives, federal
agencies, and other interested parties. The plan shall consider location, topography,
geology, aspect, combustible vegetation (fuel types), climatic conditions and fire history.
The plan shall address water supply, access, structural ignitability, structure setback
and ignition resistive building features, fire protection systems and equipment, impacts
to existing emergency services, defensible space, and vegetation management. The
plan shall identify and prioritize areas for hazardous fuel reduction treatments and
recommend the types and methods of treatment that will protect one or more at-risk
communities and essential infrastructures. The plan shall recommend measures that
homeowners and communities shall take to reduce the ignitability of structures
throughout the area addressed by the plan.
15.05.130 Fire Hazard Severity
Section 502.2 is modified to read as follows:
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502.2 Fire hazard severity reduction. The fire hazard severity identified in Table
502.1 may be reduced by implementing an approved vegetation management plan.
TABLE 502.1
FIRE HAZARD SEVERITY
CRITICAL FIRE WEATHER
FUEL FREQUENCY
MODEL (b) Greater than 8 davs (a)
SLOPE (0/;;)
<40 41-60 >60
LiQht Fuel M M H
Medium E E E
Fuel
Heavy Fuel E E E
a. Days per annum.
b. When required by the Code official, fuel classification
shall be based on the historical fuel types for the area.
E = Extreme hazard. H = High hazard. M = Moderate hazard.
15.05.140 Ignition Resistant Construction.
Section 503.1 is modified to read as follows:
503.1 General. Buildings and structures hereafter constructed, modified, or
relocated into or within Wildland-Urban Interface Areas shall meet the construction
requirements in accordance with Table 503.1. Class 1 and Class 2 ignition-resistant
construction shall be in accordance with sections 504 and 505, respectively.
TABLE 503.1
IGNITION-RESISTANT CONSTRUCTION (a)
FIRE HAZARD SEVERITY
Moderate Hazard Hiah Hazard Extreme Hazard
Water Supply (b) Water Supply (b) Water Supply (b)
Conformin Nonconformin Conformin Nonconformin Conformin Nonconformin
DEFENSIBLE 9 (d) 9 (e) 9 (d) 9 (e) 9 (d) 9 (e)
SPACE ( c)
~onconformin IIR 2 IR 1 IR 1 IR 1 IR 1 Not Permitted
N.C. N.C
C f' IR 2 IR1 IR 1 IR 1 IR 1 IR 1
on ormmg N.C.
1.5 x Not IR2 IR2 IR1 IR 1 IR 1
Conformin!! required
--..-
Ordinance No. 669
Page 12
(a) Access shall be in accordance with section 402.
(b) Subdivisions shall have a conforming water supply in accordance with section
402.1.
IR 1 = Ignition-resistant construction in accordance with section 504.
IR 2 = Ignition-resistant construction in accordance with section 505.
N.C. = Exterior walls shall have a fire-resistance rating of not less than 1-hour
and the exterior surfaces of such walls shall be noncombustible.
Usage of log wall construction is allowed.
(c) Conformance based on section 603.
(d) Conformance based on section 404.
(e) A nonconforming water supply is any water system or source that does not
comply with section 404, including situations where there is no water supply for
structure protection or fire suppression.
15.05.150 Class 1 Ignition Resistant Construction.
Section 504.1.1 is added as follows:
504.1.1 Zoning Requirements. The minimum setbacks for locating structures on
a lot are set by the PAHJ. To minimize fire spread potential the FAHJ may require
additional setbacks as described. In no case may the setbacks required by the FAHJ
be less than those established by the PAHJ.
Section 504.1.2 is added as follows:
504.1.2 Fire Requirements. In those jurisdictions where a FAHJ approves a fuel
modification zone of less than 100 feet, all structures, including any part of a structure
located within the Wildland-Urban Interface Area, shall be not less than 30 feet
measured perpendicular from the subject property line adjacent to Wildland Fuel. When
the property line abuts a public way, the setback is measured to the farthest roadway
edge of the public way or street.
Exception: When allowed by both the FAHJ and by the PAHJ zoning
requirements and the wildland fire hazard is determined to be minimal, the 30 foot
setback may be reduced to a minimum of 5 feet from a property line provided the entire
exterior wall, eave, overhang, or any other building construction elements shall comply
with the enhanced ignition-resistant construction standards.
Note: The FAHJ may allow openings in the exterior wall facing the Wildland-
Urban Interface Area if it is determined the hazard is minimal.
- ----
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Page 13
Section 504.1.3 is added as follows:
504.1.3 Future setback modification. All fuel modification zones shall not extend
beyond the property line.
Exception: The FAHJ may approve fuel modification zones that extend beyond
the property lines when a legal agreement, such as an easement running with the land,
is in place.
Section 504.1.4 is added as follows:
504.1.4 Structure Setback from Slope. A single story structure shall be set back
a minimum 15 feet horizontally from top of slope to the farthest projection from a roof. A
single story structure shall be less than 12 feet above grade. A two-story structure shall
be set back a minimum of 30 feet measured horizontally from top of slope to the farthest
projection from a roof. Structures greater than two stories may require greater setback,
which is based upon a 2-to-1 slope.
Section 504.1.5 is added as follows:
504.1.5 Mitigation. In jurisdictions where a PAHJ or FAHJ approves a fuel
modification zone of less than 100 feet, Class 1 Ignition-Resistant Construction shall be
provided and or additional mitigation as determined by the FAHJ.
Section 504.2 is modified to read as follows:
504.2 Roof Covering. Roofs shall comply with the California Building Code and
have a minimum Class A roof covering. For roof coverings where the profile allows a
space between the roof covering and roof decking, the space at the eave ends shall be
fire stopped to preclude entry of flames or embers.
Exceptions:
1. When re-roofing or repairs are made which exceed 25 percent of the
projected roof area or 2,500 square feet, whichever is less, then the entire roof shall be
fire rated roof coverings in conformance with California Building Code section 504.2.
Roofing of residential room additions, however, may be constructed of roofing materials
having the same fire rating as the existing building when the projected roof area of the
addition does not exceed 25 percent of that of the existing horizontal projected roof area
or 2,500 square feet, whichever is less. For the purpose of this exception, re-roofing or
addition projects must be separated by at least 12 months to be considered separate
projects.
2. On qualified historical buildings, wood roof covering may be repaired or
reconstructed as allowed by the State Historical Building Code.
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Page 14
Section 504.2.2 is added as follows:
504.2.2 Insulation. In the Wildland-Urban Interface Area, paper-faced insulation
shall be prohibited in attics or ventilated spaces.
Section 504.3.1 is added as follows:
504.3.1 Protection of Eaves. Combustible eaves, fascias and soffits shall be
constructed as required in guidance documents prepared by the PAHJ.
Exception: Eave construction on additions may match the existing structure,
provided that the addition does not exceed 50 percent of the existing structure or 2,500
square feet, whichever is less. The vents in these eaves must comply with sections
26.2.4 and 26.3.2, as applicable.
Section 504.4 is modified to read:
504.4 Gutters and Downspouts. Gutters and downspouts shall be constructed of
noncombustible material. Gutters shall be designed to reduce the accumulation of leaf
litter and debris that contributes to roof edge ignition.
Section 504.5 is modified to read:
504.5 Exterior Walls. Exterior walls in the Wildland-Urban Interface Area shall
comply with the provisions of the California Building Code and with the following
additional requirements:
Exterior Wall Surfacing Materials. The exterior wall surface materials shall be
non-combustible or an approved alternate. In all construction, exterior walls are required
to be protected with 2-inch nominal solid blocking between rafters at all roof overhangs.
Wood shingle and shake wall covering shall be prohibited.
Exceptions:
1. Wood siding of 3/8-inch plywood or 3/4-inch drop siding is permitted, but must
have an underlayment of 1/2-inch fire-rated gypsum sheathing that is tightly butted or
taped and mudded, or other ignition-resistive material as approved by the PAHJ.
2. Livestock stables less than 2,000 square feet total floor area and without
restrooms are exempt from the non-combustible wall requirement if constructed a
minimum of 100 feet from the property line, from any open space easement, and from
any dwelling on the parcel. If a dwelling, or addition to a dwelling, is subsequently
proposed to be constructed closer than 100 feet from a stable constructed under this
exemption, the stable must be retrofitted with non-combustible exterior wall covering or
be removed.
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Page 15
3. Heavy timber or log wall construction. Such material shall extend from the top
of the foundation to the underside of the roof sheathing.
Section 504.5.1 is added as follows:
504.5.1 Repair/Replacement. If 50 percent or more of an exterior wall located
less than 30 feet from a property line requires repair or replacement, the entire wall shall
conform to this section. If less than 50 percent of the wall requires repair or
replacement, the existing wall may be repaired or replaced in kind, however, if the wall
covering is wood shingle or shake, it must be repaired or replaced with fire-retardant,
pressure-treated wood shingles or shakes.
Sections 504.7.1 through 504.7.6 are added as follows:
504.7.1 Fences and Other Attachments to Structures. The first 10 feet of fence
and other items attached to a structure shall be constructed of non-combustible
material, or pressure-treated exterior fire-retardant wood, or meet the same fire-resistive
standards as the exterior walls of the structure.
Exception: Wooden gates are permitted provided that a 5-foot minimum length
section of non-combustible fencing material is installed as a firebreak immediately
adjacent to the gate.
504.7.2 Projections, appendages. Exterior balconies, carports, decks, patio
covers, unenclosed roofs and floors, and similar architectural appendages and
projections, not meeting the 100-foot fuel modification requirements of section 603.2,
shall be of ignition-resistant construction in accordance with sections 302.1 and 504.7.4.
When such appendages or projections are attached to exterior fire-resistive walls, they
shall be constructed to maintain the fire-resistive integrity of the wall.
Construction details shall comply with the methods specified in guidance
documents prepared by the PAHJ in accordance with section 101.7.
Exceptions:
1. A free-standing deck or trellis less than 250 square feet in area and greater
than 30 feet from the nearest structures and property lines is not required to meet the
fire-resistive requirements of Appendix II-A.
2. A detached deck that is separated from the dwelling by at least 5 feet of non-
combustible surface may be constructed of non-rated wood provided all of the following
conditions are met:
a) The decking must be a minimum dimension of 2x (nominal) material.
Ordinance No. 669
Page 16
b) The deck is located at or below the elevation of the dwelling ground floor
level, and not exposed to any underfloor area or basement opening.
c) The deck is skirted from the deck-walking surface to ground level with non-
combustible material.
d) If the deck is skirted, the underdeck area must be vented in conformance with
section 504.10.
504.7.3 Structural Supports and Framing Members. Structural supports and
framing members shall be of non-combustible construction, exterior fire-retard ant-
treated wood, modified heavy timber construction as described in guidance documents
prepared by the PAHJ, or one-hour fire-resistive construction.
Exception: Structural supports and framing may be constructed of non-fire-rated
lumber when decks, balconies, and similar projections are skirted from floor level to
ground level with non-combustible material or an approved alternate. The skirted
underdeck area must be vented in conformance with section 504.10.
504.7.4 Decking Surfaces. Decking surfaces, stair treads, risers, and landings of
decks, porches, and balconies shall be constructed of non-combustible construction,
exterior fire-retard ant-treated wood, modified heavy timber construction as described in
guidance documents prepared by the PAHJ, one-hour fire-resistant construction, or
alternative decking that passes the performance testing requirements of section
504.7.5.
504.7.5 Testing of Alternative Decking Materials. Alternative decking materials
may be approved when tested to demonstrate passing of the performance requirements
of State Fire Marshal standard 12-7A-4. The decking surface shall pass the tests in
both Parts A and B of SFM 12-7A-4, however, the burning brand exposure test of Part B
may be conducted with a Class B sized brand as specified in ASTM E-108 or UL-790.
The Conditions of Acceptance of State Fire Marshal standard 12-7A-4 shall be
modified to read as follows:
Part A: Underflame Test
1. Peak heat release rate of less than or equal to 25 kW/ft2 (269 kW/m2).
2. Absence of sustained flaming at the conclusion of the 40-minute observation
period.
3. Absence of structural failure of any deck board.
4. Absence of falling particles that are still burning when reaching the floor.
Ordinance No. 669
Page 17
Part B: Burning Brand Test
1. Absence of sustained flaming at the conclusion of the 40-minute observation period.
2. Absence of structural failure of any deck board.
3. Absence of falling particles that are still burning when reaching the floor.
Should one of the three replicates fail to meet the Conditions of Acceptance,
three additional tests may be run. All of the additional tests must meet the Conditions of
Acceptance.
A testing laboratory accredited by the California Accreditation Service or
identified by an ICC-ESIICBO-ES report shall do product tests. Test results and reports
must be submitted to the PAHJ for analysis and approval prior to being used within the
Wildland-Urban Interface Area.
Decking materials passing the performance requirements of this section shall be
identified with a grade stamp or label not more than every 6 feet along the length of the
decking board.
504.7.6 Deck Remodels or Repair. When remodels or repairs are made to decks
in areas of the Wildland-Urban Interface Area requiring Enhanced Ignition-Resistant
Construction and the deck remodel or repair exceeds 50 percent of the projected area
or 1,000 square feet, whichever is less, the entire deck shall comply with section
504.7.2. For the purpose of this exception deck remodel or repair projects must be
separated by at least 12 months to be considered separate projects.
504.7.7 Coatings. The use of paints, coatings, stains, or other surface treatments
is not an approved method of protection, as required in this Chapter.
Section 504.8 is modified to read as follows:
504.8 Exterior Windows and Glazing. Glass or other transparent, translucent or
opaque glazing shall be tempered glass, multi-layered glass panels (dual glazed), glass
block, have a fire-protection rating of not less than 20 minutes, or other assemblies
approved by the FAHJ. Glazing frames made of vinyl materials shall have welded
corners, metal reinforcement in the interlock area, and be certified to
ANSI/AAMAlNWWDA 101 /I.S.2-97 structural requirements.
Section 504.8.1 is added as follows:
504.8.1 Skylights. Skylights shall be tempered glass.
Section 504.9 is modified to read as follows:
Ordinance No. 669
Page 18
504.9 Exterior Doors. All exterior doors facing the Wildland-Urban Interface Area
shall be approved non-combustible construction or ignition-resistant, solid core wood
not less than 1-3/4 inches thick or have a fire protection rating of not less than 20
minutes. Windows within doors and glazed doors shall comply with section 504.8.
Sections 504.10.1 through 504.10.2 are added as follows:
504.10.1 Venting in Eaves. Attic ventilation openings or ventilation louvers shall
not be permitted in soffits, in eave overhangs, between rafters at eaves, or in other
similar exterior overhanging areas in the Wildland-Urban Interface Area.
Exceptions:
1. Attic vents in soffits may be permitted by the FAHJ on those areas of the
building that do not face the wildland fuels, when the FAHJ determines it is not a
hazard.
2. When enhanced ignition-resistant construction is not required, enclosed eaves
may be vented on the underside of the eave closest to the fascia provided the closest
edge of the vent opening is at least 12 inches from the exterior wall. This venting must
be screened or have holes of 1/4-inch in diameter.
504.10.2 Venting on Roofs and Vertical Walls. Roof vents, dormer vents, gable
vents, foundation ventilation openings, ventilation openings in vertical walls, or other
similar ventilation openings shall be louvered and covered with y.,-inch, noncombustible,
corrosion-resistant metal mesh or other approved material that offers equivalent
protection. Turbine attic vents shall be equipped to allow, one-way direction rotation
only; they shall not free spin in both directions.
15.05.160 Class 2 Ignition Resistant Construction.
Section 505.1.1 is added as follows:
505.1.1 Zoning Requirements. The minimum setbacks for locating structures on
a lot are set by the PAHJ. To minimize fire-spread potential the FAHJ may require
additional setbacks as described in section 505.1.4. In no case may the setbacks
required by the FAHJ be less than those established by the PAHJ.
Sections 505.1.2 through 505.1.5 are added as follows:
505.1.2 Fire Requirements. In those jurisdictions where a FAHJ approves a fuel
modification zone of less than 100 feet, all structures, including any part of a structure
located within the Wildland-Urban Interface Area, shall be not less than 30 feet
measured perpendicular from the subject property line adjacent to Wildland Fuel. When
the property line abuts a public way, the setback is measured to the farthest roadway
edge of the public way or street.
Ordinance No. 669
Page 19
Exception: When allowed by both the FAHJ and by the PAHJ zoning
requirements and the wildland fire hazard is determined to be minimal, the 30 foot
setback may be reduced to a minimum of 5 feet from a property line provided the entire
exterior wall, eave, overhang, or any other building construction elements shall comply
with the enhanced ignition-resistant construction standards.
Note: The FAHJ may allow openings in the exterior wall facing the Wildland-
Urban Interface Area if it is determined the hazard is minimal.
505.1.3 Future Setback Modification. All fuel modification zones shall not extend
beyond the property line.
Exception: The FAHJ may approve a fuel modification zone that extends beyond
the property lines when a legal agreement, such as an easement running with the land,
is in place and appropriately recorded.
505.1.4 Structure Setback From Slope. A single-story structure shall be set back
a minimum of 15 feet horizontally from top of slope to the farthest projection from a roof.
A single story structure shall be less than 12 feet above grade. A two-story structure
shall be set back a minimum of 30 feet measured horizontally from top of slope to the
farthest projection from a roof. Structures greater than two stories may require greater
setback, which is based upon a 2-to-1 slope.
505.1.5 Mitigation. In jurisdictions where a PAHJ or FAHJ approves a fuel
modification zone of less than 100 feet, Class 1 Ignition-Resistant Construction shall be
provided and/or additional mitigation as determined by the FAHJ.
Section 505.2 is modified to read as follows:
505.2 Roof Covering. Roofs shall comply with the California Building Code and
have a minimum Class A roof covering. For roof coverings where the profile allows a
space between the roof covering and roof decking, the space at the eave ends shall be
fire stopped to preclude entry of flames or embers.
Exceptions:
1. When re-roofing or repairs are made which exceed 50 percent of the
projected roof area or 2,500 square feet, whichever is less, the entire roof shall consist
of fire rated roof coverings in conformance with section 505.2. Roofing of residential
room additions, however, may be constructed of roofing materials having the same fire
rating as the existing building when the projected roof area of the addition does not
exceed 50 percent of that of the existing horizontal projected roof area or 2,500 square
feet, whichever is less. For the purpose of this exception, re-roofing or addition projects
must be separated by at least 12 months to be considered separate projects.
Ordinance No. 669
Page 20
2. On qualified historical buildings, wood roof covering may be repaired or
reconstructed as allowed by the State Historical Building Code.
Sections 505.2.2 through 505.2.2 are added as follows:
505.2.2 Insulation. In the Wildland-Urban Interface Area, paper-faced insulation
shall be prohibited in attics or ventilated spaces.
505.3.1 Protection of Eaves. Combustible eaves, fascias and soffits shall be
constructed as required in guidance documents prepared by the PAHJ.
Exception: Eave construction on additions may match the existing structure,
provided that the addition does not exceed 50 percent of the existing structure or 2,500
square feet, whichever is less. The vents in these eaves must comply with sections
26.2.4 and 26.3.2 as applicable.
Section 505.4 is modified to read as follows:
505.4 Gutters and Downspouts. Gutters and downspouts shall be constructed of
noncombustible material. Gutters shall be designed to reduce the accumulation of leaf
litter and debris that contributes to roof edge ignition.
Section 505.5 is modified to read as follows:
505.5 Exterior Walls. Exterior walls in the Wildland-Urban Interface Area shall
comply with the provisions of the California Uniform Building Code and with the
following additional requirements:
Exterior Wall Surfacing Materials. The exterior wall surface materials shall be
non-combustible or an approved alternate. In all construction, exterior walls are
required to be protected with 2-inch nominal solid blocking between rafters at all roof
overhangs. Wood shingle and shake wall covering shall be prohibited in high or very
high fire severity zones as described by the PAHJ.
Exceptions:
1. Wood siding of 3/B-inch plywood or 3/4-inch drop siding is permitted but must
have an underlayment of 1/2-inch fire-rated gypsum sheathing that is tightly butted or
taped and mudded, or other ignition-resistive material as approved by the PAHJ.
Ordinance No. 669
Page 21
2. Livestock stables less than 2,000 square feet total floor area and without
restrooms are exempt from the non-combustible wall requirement if constructed a
minimum of 100 feet from the property line, from any open space easement, and from
any dwelling on the parcel. If a dwelling or addition to a dwelling is subsequently
proposed to be constructed closer than 100 feet from a stable constructed under this
exemption, the stable must be retrofitted with non-combustible exterior wall covering or
be removed.
3. Heavy timber or log wall construction. Such material shall extend from the top
of the foundation to the underside of the roof sheathing.
Section 505.5.1 is added as follows:
505.5.1 Repair/Replacement. If 50 percent or more of an exterior wall located
less than 30 feet from a property line requires repair or replacement, the entire wall shall
conform to this section. If less than 50 percent of the wall requires repair or
replacement, the existing wall may be repaired or replaced in kind, however, if the wall
covering is wood shingle or shake, it must be repaired or replaced with fire-retardant,
pressure-treated wood shingles or shakes.
Sections 505.7.1 through 505.7.2 are added as follows:
505.7.1 Fences and Other Attachments to Structures. The first 5 feet of fence
and other items attached to a structure shall be constructed of non-combustible
material, or pressure-treated exterior fire-retardant wood, or meet the same fire-resistive
standards as the exterior walls of the structure.
Exception: Wooden gates are permitted, provided that a 5-foot minimum length
section of non-combustible fencing material is installed as a firebreak immediately
adjacent to the gate.
505.7.2 Coatings. The use of paints, coatings, stains, or other surface treatments
is not an approved method of protection as required in this chapter.
Section 505.8 is modified to read as follows:
505.8 Exterior Windows and Glazing. Glass or other transparent, translucent, or
opaque glazing shall be tempered glass, multi-layered glass panels (dual glazed), glass
block, have a fire-protection rating of not less than 20 minutes, or other assemblies
approved by the FAHJ. Glazing frames made of vinyl materials shall have welded
corners, metal reinforcement in the interlock area, and be certified to
ANSI/AAMAlNWWDA 101/I.S.2-97 structural requirements.
Ordinance No. 669
Page 22
Section 505.9 is modified to read as follows:
505.9 Exterior Doors. All exterior doors facing the Wildland-Urban Interface Area
shall be approved non-combustible construction or ignition-resistant, solid core wood
not less than 1-3/4 inches thick or have a fire protection rating of not less than 20
minutes. Windows within doors and glazed doors shall comply with section 504.8.
Sections 505.10.1 through 505.10.2 are added as follows:
505.10.1 Venting in Eaves. Attic ventilation openings or ventilation louvers shall
not be permitted in soffits, in eave overhangs, between rafters at eaves, or in other
similar exterior overhanging areas in the Wildland-Urban Interface Area.
Exceptions:
1. Attic vents in soffits may be permitted by the FAHJ on those areas of the
building that do not face the wildland fuels, when the FAHJ determines it is not a
hazard.
2. When enhanced ignition-resistant construction is not required, enclosed eaves
may be vented on the underside of the eave closest to the fascia provided the closest
edge of the vent opening is at least 12 inches from the exterior wall. This venting must
be screened or have holes 1/4-inch in diameter.
505.10.2 Venting on Roofs and Vertical Walls. Roof vents, dormer vents, gable
vents, foundation ventilation openings, ventilation openings in vertical walls, or other
similar ventilation openings shall be louvered and covered with 1/4-inch,
noncombustible, corrosion-resistant metal mesh or other approved material that offers
equivalent protection. Turbine attic vents shall be equipped to allow, one-way direction
rotation only; they shall not free spin in both directions.
15.05.170 Class 3 Ignition Resistant Construction.
Section 506 is hereby deleted in its entirety.
15.05.180 Replacement or Repair of Roof Coverings
Section 507.1 is modified to read as follows:
507.1 General. When re-roofing or repairs are made which exceed 25 percent of
the projected roof area or 2,500 square feet, whichever is less, then the entire roof shall
consist of fire rated roof coverings in conformance with section 1503.
Section 507.1.1 is added as follows:
507.1.1 Roof Coverings - Historical Buildings. On qualified historical buildings,
wood roof covering may be repaired or reconstructed as allowed by the State Historical
Building Code.
Ordinance No. 669
Page 23
15.05.190 Defensible Space
Section 603.2 is modified to read as follows:
603.2 Fuel Modification. For individual building or structures on a property, in
order to qualify as a conforming defensible space for the purpose of Table 503.1, the
fuel modification zone shall be achieved by removing, clearing or modifying away
combustible vegetation and other flammable materials from areas within 100 feet from
such buildings or structures. The distances specified in Table 603.2 shall be measured
on a horizontal plane, in plan view, from the perimeter or projection of the building or
structure as shown in Figure 603.2. The Code official, because of a site-specific
analysis based on local conditions and the fire protection plan, may increase distances
specified in Table 603.2.
The fuel management plan shall conform to the City of Poway Guide to
Landscaping Requirements, Unit 6, titled "Vegetative Fuel Management at the
Development-Wild/and Interface."
Section 603.2.1 is added as follows:
603.2.1 Fuel Modification of Brush or Vegetative Growth From Roadways.
(a) Clearance at Existing Off-Site Roadways. The Fire Chief and/or his or her
designee are authorized to cause the area within 20 feet on each side of the improved
width portions of highways and private streets or roads which are improved, designed,
or ordinarily used for vehicular traffic to be cleared of flammable vegetation and other
combustible growth shall comply with the requirements of a fuel modification zone. The
Fire Chief or his or her designee is authorized to enter upon private property to insure
the fuel modification zone requirements are met.
Exception: Single specimens of trees, ornamental shrubbery, or cultivated
ground cover such as green grass, ivy, succulents, or similar plants used as ground
covers, provided that they do not form a means of readily transmitting fire.
(b) Clearance for New Off-Site Roadways when constructed and New On-Site
Roadways. The area 30 feet on each side of the improved width of highways, private
roads, streets, and driveways shall comply with requirements of a fuel modification
zone.
Exceptions:
1. Upon approval by the Fire Department, the Roadway Fuel Modification Zones
may be reduced provided the reduction of the zones does not impair access.
2. Single specimens of trees, ornamental shrubbery or cultivated ground cover
such as green grass, ivy, succulents or similar plants used as ground covers, provided
that they do not form a means of readily transmitting fire.
Ordinance No. 669
Page 24
(c) All roadways shall have a minimum of thirteen feet six inches (13' 6") vertical
clearance free of vegetation.
TABLE 603.2
REQUIRED DEFENSIBLE SPACE
URBAN-WILDLAND INTERFACE AREA FUEL MODIFICATION DISTANCE (FEET) (1)
Moderate Hazard 30
High Hazard 100
Extreme Hazard 100
(1) Or as defined in a Fire Protection Plan (See Section 405)
Sections 603.3 through 603.3.2 are added as follows:
603.3 Community Fuel Modification. Fuel modification zones to protect new
communities shall be provided when required by the Fire Code official in accordance
with section 603 to reduce the fuel loads adjacent to communities and structures within
them.
603.3.1 Land Ownership. Fuel modification zone land used to protect a
community shall be under the control of an association or other common ownership
established in perpetuity, for the benefit of the community to be protected.
603.3.2 Plans. Plans shall be approved prior to fuel modification work. Plans
shall be placed on a grading site plan shown in plan view. An elevation plan shall also
be provided to indicate the length of the fuel modification zone on the slope. Plans shall
include, at a minimum: (1) plan showing existing vegetation; (2) photographs showing
natural condition prior to work being performed; and, (3) grading plans showing location
of proposed structures and setback from top of slope to all structures.
Section 603.4 is added as follows:
603.4 Fuel Modification Installations. All fuel modifications shall be installed prior
to the final inspection for issuance of a certificate of occupancy.
Ordinance No. 669
Page 25
FIGURE 603.2 MEASUREMENTS OF FUEL MODIFICATION DISTANCE
- --- .- .--- . ....... --- . ----- ---I
lJnl110dilied --1 1100 feet !
~Id 100 feet Modified i
Modilied Fuel:
. Fucl B I[I] Hn,ilOl1tal plane i
11ofll.Onlal plane i
, Unrnodilicd i
: !'ucl i
. .
. .
. .
. .
. .
i "II'~"""'~'~~"""~'~'~''''1ii i
i ~;'~~~'~j111~J;'\IiI~t~~t~,[~i~~1 i
: .;~ 1/, '. ," ~"if;'~ <. . ~~~, '!:wr !111;il'~;;ri! :
i ..,'or"', ',~.",.',_..;, ,,",","'., ""'; ,~ i
MEASUREMENTS6F FUEL MODI FICA fior,lblsTANCE.mm.m.
15.05.200 Maintenance of Defensible Space
Section 604.3 is modified to read as follows:
604.3 Responsibility. Persons owning, leasing, controlling, operating or
maintaining buildings or structures are responsible for maintenance of defensible
spaces. Maintenance of the defensible space shall be conducted annually or as
determined by the FAHJ and may include, but is not limited to, the modification or
removal of non-fire resistive or undesirable vegetation as described with the City of
Poway Guide to Landscape Requirements, Tables 6.1 and 6.2, and keeping leaves,
needles, and other dead vegetative material regularly removed from roofs of buildings
and structures.
Section 604.4 is modified to read as follows:
604.4 Trees. Horizontal clearance from tree crowns to structures shall be pruned
to maintain a minimum of 10 feet for fire resistive trees and 30 feet for non-fire resistive
trees. Tree crowns within the defensible space shall be pruned to remove limbs located
less than 6 feet above the ground surface adjacent to the trees. Portions of tree crowns
that extend within 10 feet of the outlet of a chimney shall be pruned to maintain a
minimum horizontal clearance of 10 feet. Dead wood and litter shall be regularly
removed from trees. Ornamental trees shall be limited to groupings of 2 to 3 trees with
canopies for each grouping separated horizontally as described in Table 604.
Ordinance No. 669
Page 26
TABLE 604
DISTANCE BETWEEN TREE CANOPIES
Distance Between Tree Cano ies b Percent Slo e 1
Zone Recommended Distances Between
Edge of Mature Tree Cano~ies 2
Zone A 20 feet
Zone B No less than 2x the diameter of the
species' mature canopy.
Sections 604.5 through 604.5.5 are added as follows:
604.5 Landscape Req u irements-Objective. Provisions of this section are
intended to modify fuel load in areas adjacent to structures to create defensible space.
604.5.1 Landscape Submittals. Landscape plans are required for all residential
custom homes, production tract homes, multi-family residential, and commercial
buildings. Landscape plans shall be submitted and approved by the Development
Services Department and the Department of Safety Services prior to the issuance of a
building permit. Landscape plan submittals shall follow the submittal requirements
found in the City of Poway Guide to Landscape Requirements and shall, at a minimum,
include a readable scale, the delineation of 100-foot fuel modification zones, the existing
vegetation, all irrigated areas, a plant legend with both botanical and common names,
and identification of all plant material symbols. The Fire Marshal may expand or reduce
the distance of the fuel modification zone based on project location, surrounding
vegetation, and topography.
604.5.2 Landscaping Requirements. All plant materials used shall be from the
Vegetative Fuel Management at the Development-Wildland Interface plant palette
and/or from the list of suggested fire-resistance plant species identified in Table 6-2 of
the City of Poway Guide to Landscape Requirements. The addition of plant material to
the approved list will be at the discretion of the Fire Department. Landscape plans shall
be in accordance with the following criteria:
1. All non-fire resistive trees, including conifers, pepper trees, eucalyptus, and
acacia species, shall be planted and maintained so that the drip line of the tree at
maturity is a minimum 30 feet from any combustible structure. All fire resistive tree
species shall be planted and maintained at a minimum of 10 feet from the drip line of
the tree to any combustible structure.
2. For streetscape plantings, all non-fire resistive trees shall be planted so that
the center of the tree trunk is 20 feet from edge of curb. Fire resistive trees can be
planted 10 feet from the edge of the curb to the center of the tree trunk. Trees selected
shall be of a type that will not encroach into the roadway, nor produce a closed canopy
effect.
Ordinance No. 669
Page 27
3. Limit planting of large unbroken masses, especially trees and large shrubs.
Groups should be two to three trees maximum, with mature foliage of any group
separated horizontally by at least 20 feet in Zone A; if planted in Zone B, no less than
two times (2x) the diameter of the species' mature canopy.
4. If shrubs are located underneath the drip line of a tree, the lowest branch
should be at least three times as high as the understory shrubs or 10 feet, whichever is
greater.
5. Existing trees can be pruned 10 feet away from roof, eave, or exterior siding,
depending on the physical or flammable characteristics of the tree and the building
construction features.
6. All tree branches and palm fronds shall be removed within 10 feet of a
fireplace chimney or outdoor barbecue.
604.5.3 Orchards, Groves, or Vineyards. All orchards, groves, and vineyards
shall be kept in a healthy state and maintained as described below. A 10-foot firebreak
shall be cleared between the perimeter of the orchard trees or row of grape vines and
native vegetation or ornamental landscaping. Orchards shall be kept clean of dead and
or downed trees. Orchards and vineyards shall be free of combustible debris, including
but not limited to, dead branches and dead foliage. All dead grasses between rows of
trees or vines shall be removed.
604.5.4 Eucalyptus Forests and Oak Woodlands. All forests and woodlands
shall be kept in a healthy state and maintained as described below. The forest or
woodlands shall be free of all dead, dying, or diseased trees (excluding tree stumps no
higher than 6 inches above the ground). Dead, dying, or diseased trees shall include
insect-infested trees, no longer living, in the last stages of growth, or infected by a
pathogen of any type. If combustible vegetation is located underneath the drip line of a
tree, the lowest branch shall be at least three times as high as the understory brush or
grasses, or 10 feet, whichever is greater.
This will reduce the build-up of "ladder" fuels. Firewood shall be neatly stacked
and shall have a minimum of 30 feet of clearance (no vegetation) around the entire
firewood storage area. Debris and trimmings produced by the removal process shall be
removed from the site, or if left, shall be converted into mulch by a chipping machine
and evenly dispersed to maximum depth of 6 inches.
604.5.5 Landscape Installation. All landscaping shall be installed prior to the final
inspection for issuance of certificate of occupancy.
15.05.210 Liquefied Petroleum Gas Installations.
Section 606.2 is modified to read as follows:
606.2 Location of Containers. Liquefied petroleum-gas containers shall be
located within the defensible space, in accordance with the locally adopted Fire Code.
Ordinance No. 669
Page 28
15.05.220 Storage of Firewood and Combustible Materials
Section 607.1 is modified to read as follows:
607.1 General. Storage of Firewood and Combustible Materials. Firewood and
combustible material shall not be stored in unenclosed spaces beneath buildings or
structures, or on decks or under eaves, canopies or other projections or overhangs.
When required by the Code official, storage of firewood and combustible material stored
in the defensible space shall be located a minimum of 30 feet from structures and
separated from the crown of trees by a minimum of 15 feet, measured horizontally.
Firewood and combustible materials not for use on the premises shall be stored so as to
not pose a hazard.
Firewood and combustible materials not for use on the premises shall be stored
so as to not pose a hazard.
15.05.230 General Requirements
Section A 109 is modified to read as follows:
SECTION A109 REFERENCED STANDARDS
IFC- California Fire A 104.6,
2006 Code A 105.1
ICC- ICC Electrical
Code -
EC- Administrative A107.5
2006 Provisions
15.05.240 Appendices
Appendices "B", "C", "E", "F", and "H" are hereby deleted.
15.05.250 Conflict
All other ordinances or parts of ordinances in conflict with this Code are hereby
repealed. Wherever a conflict exists in this Code, the more restrictive requirement shall
apply.
SECTION 2: Upon passage, the City Clerk shall transmit a copy of this
ordinance to the California Building Standards Commission pursuant to Health and
Safety Code section 17958.7, and the California Department of Housing and
Community Development.
SECTION 3: Specific boundaries of natural or man-made features of Wildland-
Urban Interface Areas shall be as shown on the Wildland-Urban Interface Area map,
which is on file in the office of the City Clerk and the office of the Fire Marshal.
Ordinance No. 669
Page 29
SECTION 4: This Ordinance shall be codified.
EFFECTIVE DATE: This Ordinance shall take effect on January 1, 2008, over
30 after the date of its passage; and before the expiration of fifteen (15) days after its
passage, it shall be published once with the names of members voting for and against
the same in the Poway News Chieftain, a newspaper of general circulation published in
the City of Poway.
Introduced and first read at a Regular Meeting of the City Council of the City of
Poway held the 13th day of November 2007, and thereafter PASSED AND ADOPTED at
a regular meeting of said City Council held the 27th day of November 2007.
Ordinance No. 669
Page 30
STATE OF CALIFORNIA )
) ss.
COUNTY OF SAN DIEGO)
I, L. Diane Shea, city Clerk of the City of Poway, do hereby certify that the
foregoing Ordinance No. 669, was duly adopted by the City Council at a meeting of said
City Council held on the 2ih day of November 2007, and that it was so adopted by the
following vote:
AYES: BOYACK, EMERY, HIGGINSON, CAFAGNA
NOES: REXFORD
ABSENT: NONE
DISQUALIFIED: NONE h-w~ cxtL
L. Di e Shea, City Clerk
City of Poway