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CHAPTER 7A [SFM]
MATERIALS AND CONSTRUCTION METHODS FOR
EXTERIOR WILDFIRE EXPOSURE
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SECTION 701A
SCOPE, PURPOSE AND APPLICATION
701A.1 Scope. This chapter applies to building materials, sys- tems and/or assemblies used in the exterior design and con - struction of new buildings located within a Wildland-Urban Interface Fire Area as defined in Section 702A.
701A.2 Purpose. The purpose of this chapter is to establish minimum standards for the protection of life and property by increasing the ability of a building located in any Fire Hazard Severity Zone within State Responsibility Areas or any
Wildland-Urban Interface Fire Area to resist the intrusion of flames or burning embers projected by a vegetation fire and contributes to a systematic reduction in conflagration losses. 701A.3 Application. New buildings located in any Fire Hazard Severity Zone or any Wildland-Urban Interface Fire Area des- ignated by the enforcing agency constructed after the applica- tion date shall comply with the provisions of this chapter.
Exceptions:
1. Buildings of an accessory character classified as a
Group U occupancy and not exceeding 120 square
feet in floor area, when located at least 30 feet from an applicable building.
2. Buildings of an accessory character classified as
Group U occupancy of any size located least 50 feet
from an applicable building.
3. Buildings classified as a Group U Agricultural Build- ing, as defined in Section 202 of this code (see also
Appendix C – Group U Agricultural Buildings), when
located at least 50 feet from an applicable building.
4. Additions to and remodels of buildings originally
constructed prior to the applicable application date.
701A.3.1 Application date and where required. New build- ings for which an application for a building permit is sub- mitted on or after July 1, 2008 located in any Fire Hazard Severity Zone or Wildland Interface Fire Area shall comply with all sections of this chapter, including all of the follow- ing areas:
1. All unincorporated lands designated by the State
Board of Forestry and Fire Protection as State
Responsibility Area (SRA) including:
1.1. Moderate Fire Hazard Severity Zones
1.2. High Fire Hazard Severity Zones
1.3. Very-High Fire Hazard Severity Zones
2. Land designated as Very-High Fire Hazard Severity
Zone by cities and other local agencies.
3. Land designated as Wildland Interface Fire Area by
cities and other local agencies.
Exceptions:
1. New buildings located in any Fire Hazard
Severity Zone within State Responsibility
Areas, for which an application for a build-
ing permit is submitted on or after January
1, 2008, shall comply with all sections of this
chapter.
2. New buildings located in any Fire Hazard
Severity Zone within State Responsibility
Areas or any Wildland Interface Fire Area
designated by cities and other local agen -
cies for which an application for a building
permit is submitted on or after December 1,
2005 but prior to July 1, 2008, shall only
comply with the following sections of this
chapter:
2.1. Section 705A – Roofing
2.2. Section 706A – Attic Ventilation
701A.4 Inspection and certification. Building permit applica- tions and final completion approvals for buildings within the scope and application of this chapter shall comply with the fol- lowing:
1. Building permit issuance. The local building official shall, prior to construction, provide the owner or appli- cant a certification that the building as proposed to be built complies with all applicable state and local build- ing standards, including those for materials and con -
struction methods for wildfire exposure as described in this chapter. Issuance of a building permit by the local building official for the proposed building shall be con- sidered as complying with this section.
2. Building permit final. The local building official shall, upon completion of construction, provide the owner or
applicant with a copy of the final inspection report that demonstrates the building was constructed in compli -
ance with all applicable state and local building stan - dards, including those for materials and construction
methods for wildfire exposure as described in this chap- ter. Issuance of a certificate of occupancy by the local building official for the proposed building shall be con- sidered as complying with this section.
701A.5 Vegetation management compliance. Prior to build- ing permit final approval, the property shall be in compliance with the vegetation management requirements prescribed in California Fire Code Section 4906, including California Pub- lic Resources Code 4291 or California Government Code Sec- >
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MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE tion 51182. Acceptable methods of compliance inspection and documentation shall be determined by the enforcing agency and may include any of the following:
1. Local, state or federal fire authority or designee autho- rized to enforce vegetation management requirements
2. Enforcing agency
3. Third party inspection and certification authorized to enforce vegetation management requirements
4. Property owner certification authorized by the enforcing agency
SECTION 702A
DEFINITIONS
For the purposes of this chapter, certain terms are defined below:
CDF DIRECTOR means the Director of the California
Department of Forestry and Fire Protection.
EXTERIOR COVERING. The exposed siding or cladding
material applied to the exterior side of an exterior wall, roof eave soffit, floor projection or exposed underfloor framing.
FIRE PROTECTION PLAN is a document prepared for a
specific project or development proposed for a Wildland Urban Interface Fire Area. It describes ways to minimize and mitigate potential for loss from wildfire exposure.
The Fire Protection Plan shall be in accordance with this chapter and the California Fire Code, Chapter 49. When
required by the enforcing agency for the purposes of granting modifications, a fire protection plan shall be submitted. Only locally adopted ordinances that have been filed with the Cali- fornia Building Standards Commission or the Department of Housing and Community Development in accordance with
Section 1.1.8 shall apply.
FIRE HAZARD SEVERITY ZONES are geographical areas
designated pursuant to California Public Resources Codes Sections 4201 through 4204 and classified as Very High, High, or Moderate in State Responsibility Areas or as Local Agency Very High Fire Hazard Severity Zones designated pursuant to California Government Code, Sections 51175 through 51189.
See California Fire Code Article 86.
The California Code of Regulations, Title 14, Section 1280, entitles the maps of these geographical areas as “Maps of the Fire Hazard Severity Zones in the State Responsibility Area of California. ”
HEAVY TIMBER. A type of construction classification speci- fied in Section 602. For use in this chapter, heavy timber shall be sawn lumber or glue laminated wood with the smallest mini- mum nominal dimension of 4 inches (102 mm). Heavy timber walls or floors shall be sawn or glue-laminated planks splined, tongue-and-grove, or set close together and well spiked.
IGNITION-RESISTANT MATERIAL. A type of building
material that resists ignition or sustained flaming combustion sufficiently so as to reduce losses from wildland-urban inter - face conflagrations under worst-case weather and fuel condi- tions with wildfire exposure of burning embers and small flames, as prescribed in Section 703A and SFM Standard
12-7A-5, Ignition-Resistant Material.
LOCAL AGENCY VERY HIGH FIRE HAZARD SEVER -
ITY ZONE means an area designated by a local agency upon the recommendation of the CDF Director pursuant to Govern- ment Code Sections 51177(c), 51178 and 5118 that is not a state responsibility area and where a local agency, city, county, city and county, or district is responsible for fire protection.
LOG WALL CONSTRUCTION. A type of construction in
which exterior walls are constructed of solid wood members and where the smallest horizontal dimension of each solid wood member is at least 6 inches (152 mm).
RAFTER TAIL. The portion of roof rafter framing in a sloping roof assembly that projects beyond and overhangs an exterior wall.
ROOF EAVE. The lower portion of a sloping roof assembly that projects beyond and overhangs an exterior wall at the lower end of the rafter tails. Roof eaves may be either “open” or “enclosed. ” Open roof eaves have exposed rafter tails and an unenclosed space on the underside of the roof deck.
Enclosed roof eaves have a boxed-in roof eave soffit with a hor- izontal underside or sloping rafter tails with an exterior cover- ing applied to the underside of the rafter tails.
ROOF EAVE SOFFIT. An enclosed boxed-in soffit under a
roof eave with exterior covering material applied to the soffit framing creating a horizontal surface on the exposed under- side.
STATE RESPONSIBILITY AREA means lands that are clas-
sified by the Board of Forestry pursuant to Public Resources Code Section 4125 where the financial responsibility of pre - venting and suppressing forest fires is primarily the responsi- bility of the state.
WILDFIRE is any uncontrolled fire spreading through vegeta- tive fuels that threatens to destroy life, property, or resources as defined in Public Resources Code Sections 4103 and 4104.
WILDFIRE EXPOSURE is one or a combination of radiant
heat, convective heat, direct flame contact and burning embers being projected by vegetation fire to a structure and its immedi- ate environment.
WILDLAND-URBAN INTERFACE FIRE AREA is a geo -
graphical area identified by the state as a “Fire Hazard Sever- ity Zone” in accordance with the Public Resources Code
Sections 4201 through 4204 and Government Code Sections 51175 through 51189, or other areas designated by the enforc- ing agency to be at a significant risk from wildfires. See Section 706A for the applicable referenced sections of the Government Code and the Public Resources Code.
SECTION 703A
STANDARDS OF QUALITY
703A.1 General. Building material, systems, assemblies and methods of construction used in this chapter shall be in accor- dance with Section 703A.
703A.2 Qualification by testing. Material and material assem- blies tested in accordance with the requirements of Section 256 2010 CALIFORNIA BUILDING CODE
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MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE >
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703A shall be accepted for use when the results and conditions of those tests are met. Product evaluation testing of material and material assemblies shall be approved or listed by the State Fire Marshal, or identified in a current report issued by an approved agency.
703A.3 Approved agency. Product evaluation testing shall be performed by an approved agency as defined in Section 1702.
The scope of accreditation for the approved agency shall include building product compliance with this code.
703A.4 Labeling. Material and material assemblies tested in accordance with the requirements of Section 703A shall bear an identification label showing the fire test results. That identi- fication label shall be issued by a testing and/or inspecting agency approved by the State Fire Marshal.
1. Identification mark of the approved testing and/or
inspecting agency
2. Contact and identification information of the manufac - turer
3. Model number or identification of the product or material
4. Pre-test weathering specified in this chapter
5. Compliance standard as described under Section
703A.7
703A.5 Weathering and surface treatment protection.
703A.5.1 General. Material and material assemblies tested in accordance with the requirements of Section 703A shall maintain their fire test performance under conditions of use, when installed in accordance with the manufacturers
instructions.
703A.5.2 Weathering. Fire-retardant-treated wood and
fire-retardant-treated wood shingles and shakes shall meet the fire test performance requirements of this chapter after being subjected to the weathering conditions contained in the following standards, as applicable to the materials and the conditions of use.
703A.5.2.1 Fire-retardant-treated wood. Fire-retar-
dant-treated wood shall be tested in accordance with
ASTM D 2898, “Standard Practice for Accelerated
Weathering of Fire-Retardant Treated Wood for Fire
Testing (Method A)” and the requirements of Section
2303.2.
703A.5.2.2 Fire-retardant-treated wood shingles and
shakes. Fire-retardant-treated wood shingles and shakes shall be approved and listed by the State Fire Marshal in accordance with Section 208(c), Title 19 California
Code of Regulations.
703A.5.3 Surface treatment protection. The use of paints, coatings, stains or other surface treatments are not an approved method of protection as required in this chapter. 703A.6 Alternates for materials, design, tests and methods of construction. The enforcing agency is permitted to modify the provisions of this chapter for site-specific conditions in accor- dance with Section 1.11.2.4. When required by the enforcing agency for the purposes of granting modifications, a fire pro- tection plan shall be submitted in accordance with the Califor- nia Fire Code, Chapter 49.
703A.7 Standards of quality. The State Fire Marshal stan - dards for exterior wildfire exposure protection listed below and as referenced in this chapter are located in the California Ref- erenced Standards Code, Part 12 and Chapter 35 of this code.
SFM Standard 12-7A-1, Exterior Wall Siding and Sheath-
ing. A fire resistance test standard consisting of a 150 kW intensity direct flame exposure for a 10-minute duration.
SFM Standard 12-7A-2, Exterior Windows. A fire resis -
tance test standard consisting of a 150 kW intensity direct flame exposure for a 8-minute duration.
SFM Standard 12-7A-3, Horizontal Projection Underside
A fire resistance test standard consisting of a 300 kW inten- sity direct flame exposure for a 10-minute duration.
SFM Standard 12-7A- 4, Decking. A two-part test consist- ing of a heat release rate (Part A) deck assembly combustion test with an under deck exposure of 80 kW intensity direct flame for a 3-minute duration, and a (Part B) sustained deck assembly combustion test consisting of a deck upper surface burning ember exposure with a 12 mph wind for 40 minutes using a 2.2lb (1kg) burning “Class A” size 12"x12"x 2.25" (300 mm
x 300 mm x 57 mm) roof test brand.
SFM Standard 12-7A-4A, Decking
Alternate Method A. A
heat release rate deck assembly combustion test with an under deck exposure of 80 kW intensity direct flame for a 3-minute duration,
SFM Standard 12-7A-5, Ignition-resistant Material. A
generic building material surface burning flame spread test standard consisting of an extended 30 minute ASTM E84 or UL 723 test method as is used for fire-retardant-treated wood.
SECTION 704A
IGNITION-RESISTANT CONSTRUCTION
704A.1 General. The materials prescribed herein for ignition resistance shall conform to the requirements of this chapter. 704A.2 Ignition-resistant material. Ignition-resistant mate - rial shall be determined in accordance with the test procedures set forth in SFM Standard 12-7A-5 “Ignition-Resistant Mate- rial” or in accordance with this section.
704A.3 Alternative methods for determining ignition-resis - tant material. Any one of the following shall be accepted as meeting the definition of ignition-resistant material:
1. Noncombustible material. Material that complies with the definition for noncombustible materials in Section
202.
2. Fire-retardant-treated wood. Fire-retardant-treated
wood identified for exterior use that complies with the requirements of Section 2303.2.
3. Fire-retardant-treated wood shingles and shakes.
Fire-retardant-treated wood shingles and shakes, as
defined in Section 1505.6 and listed by State Fire Mar - shal for use as “Class B” roof covering, shall be
accepted as an ignition-resistant wall covering material when installed over solid sheathing.
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MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE SECTION 705A
ROOFING >
705A.1 General. Roofs shall comply with the requirements of Chapter 7A and Chapter 15. Roofs shall have a roofing assem- bly installed in accordance with its listing and the manufac - turer’s installation instructions.
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705A.2 Roof coverings. Where the roof profile allows a space between the roof covering and roof decking, the spaces shall be constructed to prevent the intrusion of flames and embers, be firestopped with approved materials or have one layer of mini- mum 72 pound (32.4 kg) mineral-surfaced nonperforated cap sheet complying with ASTM D 3909 installed over the combus- tible decking.
705A.3 Roof valleys. Where valley flashing is installed, the flashing shall be not less than 0.019-inch (0.48 mm) No. 26 gage galvanized sheet corrosion-resistant metal installed over not less than one layer of minimum 72 pound (32.4 kg) min- eral-surfaced nonperforated cap sheet complying with ASTM D 3909, at least 36-inch-wide (914 mm) running the full length of the valley.
705A.4 Roof gutters. Roof gutters shall be provided with the means to prevent the accumulation of leaves and debris in the gutter.
SECTION 706A
VENTS
706A.1 General. Where provided, ventilation openings for enclosed attics, enclosed eave soffit spaces, enclosed rafter spaces formed where ceilings are applied directly to the under- side of roof rafters, and underfloor ventilation shall be in accordance with Section 1203 and Sections 706A.1 through 706A.3 to resist building ignition from the intrusion of burning embers and flame through the ventilation openings.
706A.2 Requirements. Ventilation openings for enclosed
attics, enclosed eave soffit spaces, enclosed rafter spaces formed where ceilings are applied directly to the underside of roof rafters, and underfloor ventilation openings shall be fully covered with metal wire mesh, vents, other materials or other devices that meet the following requirements:
1. The dimensions of the openings therein shall be a mini- mum of
1/16-inch (1.6 mm) and shall not exceed 1/8-inch
(3.2mm).
2. The materials used shall be noncombustible.
Exception: Vents located
under the roof covering,
along the ridge of roofs, with the exposed surface of
the vent covered by noncombustible wire mesh, may
be of combustible materials.
3. The materials used shall be corrosion resistant.
706A.3 Ventilation openings on the underside of eaves and cornices: Vents shall not be installed on the underside of eaves and cornices.
Exceptions:
1. The enforcing agency may accept or approve special
eave and cornice vents that resist the intrusion of
flame and burning embers.
2. Vents complying with the requirements of Section
706A.2 may be installed on the underside of eaves and
cornices in accordance with either one of the follow-
ing conditions:
2.1. The attic space being ventilated is fully pro -
tected by an automatic sprinkler system in-
stalled in accordance with Section 903.3.1.1
or,
2.2. The exterior wall covering and exposed un -
derside of the eave are of noncombustible ma-
terial, or ignition-resistant-materials as
determined in accordance with SFM Stan -
dard 12-7A-5 Ignition-Resistant Material and
the vent is located more than 12 feet from the
ground or walking surface of a deck, porch,
patio or similar surface.
SECTION 707A
EXTERIOR COVERING
707A.1 Scope. The provisions of this section shall govern the materials and construction methods used to resist building ignition and/or safeguard against the intrusion of flames resulting from small ember and short-term direct flame contact exposure.
707A.2 General. The following exterior covering materials and/or assemblies shall comply with this section:
1. Exterior wall covering material
2. Exterior wall assembly
3. Exterior exposed underside of roof eave overhangs
4. Exterior exposed underside of roof eave soffits
5. Exposed underside of exterior porch ceilings
6. Exterior exposed underside of floor projections
7. Exterior underfloor areas
Exceptions:
1. Exterior wall architectural trim, embellishments, fas- cias, and gutters
2. Roof or wall top cornice projections and similar
assemblies
3. Roof assembly projections over gable end walls
4. Solid wood rafter tails and solid wood blocking
installed between rafters having minimum dimension
2 inch (50.8 mm) nominal
5. Deck walking surfaces shall comply with Section
709A.4 only
707A.3 Exterior walls. The exterior wall covering or wall assembly shall comply with one of the following requirements:
1. Noncombustible material
2. Ignition-resistant material
3. Heavy timber exterior wall assembly
4. Log wall construction assembly
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MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE
5. Wall assemblies that meet the performance criteria in accordance with the test procedures for a 10-minute
direct flame contact exposure test set forth in SFM Stan- dard 12-7A-1
Exception: Any of the following shall be deemed to meet the assembly performance criteria and intent of this section:
1. One layer of
5/8-inch Type X gypsum sheathing
applied behind the exterior covering or cladding on
the exterior side of the framing
2. The exterior portion of
a 1-hour fire resistive exterior
wall assembly designed for exterior fire exposure
including assemblies using the gypsum panel and
sheathing products listed in the Gypsum Association
Fire Resistance Design Manual
707A.3.1 Extent of exterior wall covering. Exterior wall coverings shall extend from the top of the foundation to the roof, and terminate at 2 inch (50.8 mm) nominal solid wood blocking between rafters at all roof overhangs, or in the case of enclosed eaves, terminate at the enclosure.
707A.4 Open roof eaves. The exposed roof deck on the under- side of unenclosed roof eaves shall consist of one of the follow- ing:
1. Noncombustible material
2. Ignition-resistant material
3. One layer of
5/8-inch Type X gypsum sheathing applied
behind an exterior covering on the underside exterior of the roof deck
4. The exterior
portion of a 1-hour fire resistive exterior
wall assembly applied to the underside of the roof deck designed for exterior fire exposure including assemblies using the gypsum panel and sheathing products listed in the Gypsum Association Fire Resistance Design Manual
Exceptions: The following materials do not require protec- tion:
1. Solid wood rafter tails on the exposed underside of
open roof eaves having a minimum nominal dimen -
sion of 2 inch (50.8 mm)
2. Solid wood blocking installed between rafter tails on the exposed underside of open roof eaves having a
minimum nominal dimension of 2 inch (50.8 mm)
3. Gable end overhangs and roof assembly projections
beyond an exterior wall other than at the lower end of
the rafter tails
4. Fascia and other architectural trim boards
707A.5 Enclosed roof eaves and roof eave soffits. The exposed underside of enclosed roof eaves having either a boxed-in roof eave soffit with a horizontal underside, or sloping rafter tails with an exterior covering applied to the underside of the rafter tails, shall be protected by one of the following:
1. Noncombustible material
2. Ignition-resistant material
3. One layer of
5/8-inch Type X gypsum sheathing applied
behind an exterior covering on the underside of the raf- ter tails or soffit
4. The exterior portion of
a 1-hour fire resistive exterior
wall assembly applied to the underside of the rafter tails or soffit including assemblies using the gypsum panel
and sheathing products listed in the Gypsum Association Fire Resistance Design Manual
5. Boxed-in roof eave soffit assemblies with a horizontal underside that meet the performance criteria in accor - dance with the test procedures set forth in SFM Standard 12-7A-3
Exceptions: The following materials do not require protec- tion:
1. Gable end overhangs and roof assembly projections
beyond an exterior wall other than at the lower end of
the rafter tails
2. Fascia and other architectural trim boards
707A.6 Exterior porch ceilings. The exposed underside of exterior porch ceilings shall be protected by one of the follow- ing:
1. Noncombustible material
2. Ignition-resistant material
3. One layer of
5/8-inch Type X gypsum sheathing applied
behind the exterior covering on the underside of the ceil- ing
4. The exterior portion
of a 1-hour fire resistive exterior
wall assembly applied to the underside of the ceiling
assembly including assemblies using the gypsum panel
and sheathing products listed in the Gypsum Association Fire Resistance Design Manual
5. Porch ceiling assemblies with a horizontal underside that meet the performance criteria in accordance with
the test procedures set forth in SFM Standard 12-7A-3
Exception: Architectural trim boards.
707A.7 Floor projections. The exposed underside of a cantile- vered floor projection where a floor assembly extends over an exterior wall shall be protected by one of the following:
1. Noncombustible material
2. Ignition-resistant material
3. One layer of
5/8-inch Type X gypsum sheathing applied
behind an exterior covering on the underside of the floor projection
4. The exterior
portion of a 1-hour fire resistive exterior
wall assembly applied to the underside of the floor pro- jection including assemblies using the gypsum panel and sheathing products listed in the Gypsum Association
Fire Resistance Design Manual
5. The underside of a floor projection assembly that meet the performance criteria in accordance with the test pro- cedures set forth in SFM Standard 12-7A-3
Exception: Architectural trim boards.
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MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE 707A.8 Underfloor protection. The underfloor area of ele - vated or overhanging buildings shall be enclosed to grade in accordance with the requirements of this chapter or the under- side of the exposed underfloor shall consist of one of the follow- ing:
1. Noncombustible material
2. Ignition-resistant material
3. One layer of 5/8-inch Type X gypsum sheathing applied behind an exterior covering on the underside of the floor projection
4. The
exterior portion of a 1-hour fire resistive exterior
wall assembly applied to the underside of the floor
including assemblies using the gypsum panel and
sheathing products listed in the Gypsum Association
Fire Resistance Design Manual
5. The underside of a floor assembly that meets the perfor- mance criteria in accordance with the test procedures
set forth in SFM Standard 12-7A-3
Exception: Heavy timber structural columns and beams do not require protection.
707A.8 Underside of appendages. When required by the
enforcing agency the underside of overhanging appendages shall be enclosed to grade in accordance with the requirements of this chapter or the underside of the exposed underfloor shall consist of one of the following:
1. Noncombustible material
2. Ignition-resistant material
3. One layer of
5/8-inch Type X gypsum sheathing applied
behind an exterior covering on the underside of the floor projection
4. The exterior portion of a
1-hour fire resistive exterior
wall assembly applied to the underside of the floor
including assemblies using the gypsum panel and
sheathing products listed in the Gypsum Association
Fire Resistance Design Manual
5. The underside of a floor assembly that meets the perfor- mance criteria in accordance with the test procedures
set forth in SFM Standard 12-7A-3
Exception: Heavy timber structural columns and beams do not require protection.
SECTION 708A
EXTERIOR WINDOWS AND DOORS
708A.1 General.
708A.2 Exterior glazing. The following exterior glazing mate- rials and/or assemblies shall comply with this section:
1. Exterior windows
2. Exterior glazed doors
3. Glazed openings within exterior doors
4. Glazed openings within exterior garage doors
5. Exterior structural glass veneer
708A.2.1 Exterior windows and exterior glazed door
assembly requirements. Exterior windows and exterior
glazed door assemblies shall comply with one of the follow- ing requirements:
1. Be constructed of multipane glazing with a minimum
of one tempered pane meeting the requirements of
Section 2406 Safety Glazing, or
2. Be constructed of glass block units, or
3. Have a fire-resistance rating of not less than 20 min- utes when tested according to NFPA 257, or
4. Be tested to meet the performance requirements of
SFM Standard 12-7A-2
708A.2.2 Structural glass veneer. The wall assembly
behind structural glass veneer shall comply with Section 707A.3.
708A.3 Exterior doors. Exterior doors shall comply with one of the following:
1. The exterior surface or cladding shall be of noncombus- tible or ignition-resistant material, or
2. Shall be constructed of solid core wood that comply with the following requirements:
2.1. Stiles and rails shall not be less than
13/8 inches
thick.
2.2. Raised panels shall
not be less than 11/4 inches
thick, except for the exterior perimeter of the
raised panel that may taper to a tongue not less
than
3/8 inch thick.
3. Shall have a fire-resistance
rating of not less than 20
minutes when tested according to NFPA 252.
4. Shall be tested to meet the performance requirements of SFM Standard 12-7A-1.
708A.3.1 Exterior door glazing. Glazing in exterior doors shall comply with Section 708A.2.1.
SECTION 709A
DECKING
709A.1 General. The walking surface material of decks,
porches, balconies and stairs shall comply with the require - ments of this section.
709A.2 Where required. The walking surface material of
decks, porches, balconies and stairs shall comply with the requirements of this section when any portion of such surface is within 10 feet (3048 mm) of the building.
709A.3 Decking Surfaces. The walking surface material of decks, porches, balconies and stairs shall be constructed with one of the following materials:
1. Ignition-resistant material that complies with the perfor- mance requirements of both SFM Standard 12-7A-4 and
SFM Standard 12-7A-5.
2. Exterior fire retardant treated wood
3. Noncombustible material
260 2010 CALIFORNIA BUILDING CODE
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MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE
4. Any material that complies with the performance
requirements of SFM Standard 12-7A-4A when attached
exterior wall covering is also either noncombustible or ignition-resistant material.
Exception: Wall material may be of any material that other- wise complies with this chapter when the decking surface material complies with the performance requirements
ASTM E 84 with a Class B flame spread rating.
SECTION 710A
ACCESSORY STRUCTURES
710A.1 General. Accessory and miscellaneous structures, other than buildings covered by Section 701A.3, which pose a significant exterior exposure hazard to applicable buildings during wildfires shall be constructed to conform to the ignition resistance requirements of this section.
710A.2 Applicability. The provisions of this section shall apply to trellises, arbors, patio covers, carports, gazebos and similar structures of an accessory or miscellaneous character.
Exceptions:
1. Decks shall comply with the requirements of Section
709A.
2. Awnings and canopies shall comply with the require-
ments of Section 3105.
710A.3 Where required. Accessory structures shall comply with the requirements of this section.
710A.3.1 Attached accessory structures shall comply with the requirements of this section.
710A.3.2 When required by the enforcing agency, detached accessory structures within 50 feet of an applicable building shall comply with the requirements of this section.
710A.4. Requirements. When required by the enforcing
agency accessory structures shall be constructed of noncom - bustible or ignition-resistant materials.
2010 CALIFORNIA BUILDING CODE 261
9 07A_CA_Bldg_2010.ps
M:\data\CODES\STATE CODES\California\2010\Part 2_Building\Final VP\Volume 1 of 2\07A_CA_Bldg_2010.vp Friday, June 18, 2010 9:13:34 AM