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HomeMy WebLinkAbout10. Fire Protection Plan HUNTERS RIDGE II Tentative Tract 20078 Fontana, California FIRE PROTECTION PLAN October 1, 2018 Revised to Comments May 10/June 10/July 2 2019 Prepared For: Highland R and S Plaza, LLC, 300 E. Bonita Ave. #697 San Dimas, CA 91773 Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 1 of 35 This Fire Protection Plan follow the provisions of the 2016 California Fire Code Chapter 49; 2016 California Building Code Chapter 7A; 2016 California Residential Code, Section R337and local jurisdiction amendments. The Fire Protection Plan shall consider location, topography, geology, aspect, combustible vegetation, climatic conditions, and fire history. Additionally, 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 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. The Applicant hereby acknowledges the construction and other requirements of this Fire Protection Plan. Applicant: ___________________________________ Date: ____________ Approving Departments: City of Fontana San Bernardino County Fire Department Approved by: ___________________________________________ Date: _____________ City of Fontana Approved by: __________________________________________ Date: _____________ San Bernardino County Fire Dept. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 2 of 35 HUNTERS RIDGE II FIRE PROTECTION PLAN Table of Contents Section Page 1.0 GENERAL DESCRIPTION 3 1.1 Project Location 3 1.2 Project Description 3 1.3 Public and Private Ownership and Land in the Vicinity 4 1.4 Date of Site Inspection 4 1.5 Photo Description of Site 6 2.0 WILDLAND FIRE HAZARD AND RISK ASSESSMENT 11 2.1 On-Site Vegetation 12 2.2 Topography 12 2.3 Climate 12 2.4 Predicting Wildland Fire Behavior 12 2.5 Wildland Fire Behavior Calculations 13 3.0 ASSESSING STRUCTURE IGNITIONS IN THE WILDLAND/URBAN INTERFACE 15 3.1 Firebrands 15 3.2 Radiant Heat/Direct Flame Impingement 15 3.3 Fire Resistant Plant Palette 16 4.0 FIRE DEPARTMENT RESPONSE TIMES 17 5.0 VEGETATION MANAGEMENT ZONE DESCRIPTIONS & REQUIRED TREATMENTS 17 5.1 Vegetation Management Zone 1 17 5.2 Vegetation Modification Zone 2 18 5.3 Construction Standards 19 6.0 INFRASTRUCTURE 19 6.1 Water Supply 19 6.2 Access Roads/Driveways and Gates 19 7.0 COMMUNITY FACILITIES DISTRICT 19 8.0 HOMEOWNERS EDUCATION 20 9.0 FIRE PROTECTION PLAN EXHIBIT 20 APPENDICES: Undesirable Plant Species APPENDIX ‘A’ Literature Referenced APPENDIX ‘B’ Ignition Resistant Construction Requirements APPENDIX ‘C’ Non-combustible & Fire Resistant Building Materials APPENDIX ‘D’ Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 3 of 35 HUNTERS RIDGE II FIRE PROTECTION PLAN Tentative Tract 20078 Fontana, California October 1, 2018; Revised 10 May/2Jul 2019 1.0 GENERAL DESCRIPTION This Fire Protection Plan (FPP) has been prepared for Hunters Ridge II. The purpose of the FPP is to assess the potential impacts resulting from wildland fire hazards and identify the measures necessary to adequately mitigate those impacts. As part of the assessment, the plan has considered the property location, topography, geology, combustible vegetation (fuel types), climatic conditions, and fire history. The plan addresses water supply, access (including secondary/emergency access where applicable), structural ignitability and fire resistive building features, fire protection systems and equipment, impacts to existing emergency services, defensible space, and vegetation management. The plan identifies and prioritizes areas for hazardous fuel reduction treatments and recommends the types and methods of treatment that will protect one or more at-risk communities and essential infrastructures. The plan recommends measures that property owners will take to reduce the probability of ignition of structures throughout the area addressed by the plan. The plan will be submitted to and approved by the City of Fontana and San Bernardino County Fire Department for approval. 1.1 - Project Location The project site is located approximately 140 feet north of the northeast corner of the intersection of Labrador Avenue and Moncton Avenue (at the existing terminus of Moncton Avenue), which also known as Phase No. “4” of the Hunter’s Ridge Specific Plan (APN: 0226-421-06). 1.2 - Project Description Tentative Tract Map No. 20078 is located in the Hunter’s Ridge Specific Plan. This is the last remaining area to be subdivided in the Hunter’s Ridge Specific Plan. The project site is zoned Single-Family Residential (R- 1-7,200), which requires a minimum lot size, including the buildable area, of 7,200 square feet. The proposed tentative tract map (Tentative Tract Map No. 20078) is a request to subdivide one (1) parcels of land, approximately 9.5 gross acres, into 20 lots for the development of single-family homes. The plan design includes five (5) letter lots; Lot “A” Equestrian Trail, Lot “B” Infiltration Basin, Lot “C” Fire Access Road, Lot “D” Fuel Modification and Lot “E” Open Space. See Figures 1 and 2. The single-family lots range in size from approximately 7,866 square feet to approximately 15,107 square feet, over approximately 5.8 adjusted gross acres. The project site is vacant and is bounded on two (2) sides by single-family homes. The proposed lots meet the minimum building pad square footage. Letter Lot “A” is an equestrian trail of approximately 0.40 ac (17,457 square feet). The trail is 15-foot wide by 955-foot along the west and north boundary of the project site. The equestrian trail will be a continuation of the existing trail to the south of the project site and will continue to San Sevaine Canyon. Letter Lot “B” is an infiltration basin designed to 7,844 square feet. The basin is approximately 125-foot wide by 63-foot and will not exceed 6-feet in depth. The basin will be secure with a minimum of a six (6) foot decorative block wall on three (3) sides and a six (6) foot tubular steel fence and gate at the street frontage. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 4 of 35 Letter Lot “C” is an emergency vehicle access easement of approximately 0.04 adjusted gross acres (1,882 square feet). This access easement is approximately 20-foot wide by 95‑foot. The access easement will provide an access point for emergence vehicle between Lot No.14 and Lot No. 15, to access the area north of the tract site. This easement shall be constructed to support an 80,000lb fire apparatus, or conform to applicable San Bernardino County Fire District (SBCFD) requirements. Letter Lot “D” the Fuel Modification Area is 100‑foot wide by approximately 575-foot, area encompasses 1.22 acres. This Fuel Modification area is a non-irrigated thinning zone, beginning at the 6 ft CMU fire barrier and continuing 100-foot north of the proposed tract. The thinning zone is utilized to reduce the fuel load of a wildland area adjacent to urban projects thereby reducing the radiant and convective heat of wildland fires. The thinning zone is approximately 74‑foot wide. There is the Fire Access Easement, within the Fuel Modification area, it is 25‑foot wide by approximately 520-foot including a hammerhead turnaround at the west end. Lot “E” is identified as an Open Space area. This Open Space area is approximately 224-foot wide by the width of the property with an area of 2.10 acres. This Open Space area will remain mostly natural with some weed abatement twice a year. This Fire Access Easement will provide a staging area for emergence vehicle prior to the Open Space area. This easement shall be constructed to support an 80,000lb fire apparatus, or conform to applicable SBCFD requirements. 1.3 - Public and Private Ownership of Land in the Vicinity The applicant owns all property within TM 20078. Private properties to the south and east in the vicinity, that border on the site are developed. The site borders to the west on a flood control channel owned by a public agency and to the north property owned by LA Dept. of Water and Power. 1.4 - Date of Site Inspections A Site assessment and analysis was conducted on July 23, 2018, as well as several telephone calls/e-mails to determine pertinent information. Site Visit & Purpose Date Initial site visit, fuel and topo evaluation July 23, 2018 Photo journal of site Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 5 of 35 Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 6 of 35 PHOTO DEPICTION OF SITE Photo 1. View of future road extension from Hunter Ridge at Moncton Way Photo 2. Typical view of equestrian trail looking north from Hunter Ridge. Note: Flood control levee and height above grade Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 7 of 35 Photo 3. View of boundary between tracts looking to the east Photo 4. View to the north along western tract boundary. Note: Fuel load similar in area at easement. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 8 of 35 Photo 5. View along boundary east side of future development. Photo 6. View of SCE easement and access. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 9 of 35 Photo 7. Fuel as modeled Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 10 of 35 2.0 WILDLAND FIRE HAZARD AND RISK ASSESSMENT In assessing the wildland fire hazard, it is necessary to consider plant succession and the climax plant communities. The vegetation described below is the most likely climax plant community that will exist without human intervention and the one utilized for planning purposes. 2.1 - On Site Vegetation The entire site is in a Very High Fire Severity Zone. Figure 4 The project’s existing native vegetation will be removed prior to the grading process. The area just off the northern boundary will be modified to 100 feet, this is located on an Edison easement. Extending past the 100 feet the vegetation will remain natural. The remaining fuel on the north end and easement is classified as Riversidean Alluvial Fan Sage Scrub that consists of Chamise, White Sage, Black Sage, and sparse Yucca. Because of the soil type, the fuel generally never reaches full continuity. Normally, without fire intervention, the natural vegetation to the north and east will remain similar in continuity and cover as it looks today. The exception could be an increase in dead fuel load. It is best characterized as SCAL 18, as the majority of the fuel bed is buckwheat, sage and non-native species. 1-h Fuel Load 1.3 tons/ac, 10-h Fuel Load 1 tons/ac, 100-h Fuel Load 1 tons/ac, Live Herbaceous Fuel Load 2 tons/ac and, Live Woody Fuel Load 2 tons/ac. Figure 3 provides a detailed fire history of the project site. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 11 of 35 On page 56 of the City of Fontana 2017 Local Hazard Mitigation Plan refers to the same area with a source of CalFire. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 12 of 35 2.2 - Topography The proposed project site for Hunters Ridge II is falling gradually from north to south from 88 to 84.2 feet (12%). Figure 1 Hybrid Topo shows the center of the site at approximately 1800 feet. There are no noted changes in slope or aspect that would increase the risk from a wildland fire, either off-site or adjacent to the site. The DWP easement on the northern boundary of the site, in general has the same topographic changes up to the adjacent development. Letter Lot ‘E” will be dedicated to the City and is 330 feet wide 2.10 acres. It has an access road from Foxborough Dr. to the open space, although not on site, it would provide access to the open space in the event of a fire. Additional clearing is routinely completed in the area around each transmission tower. 2.3 - Climate The climate within the Project area would be characterized as Mediterranean. It is generally mild, with wet (14 -16 inches per year) winters. The bulk of the annual precipitation falls between January and March. Long, hot and very dry summer seasons frequently occur with occasional multi-year droughts. The most critical weather pattern to the project area is a hot, dry offshore wind, typically called a Santa Ana. Such wind conditions are usually associated with strong (>70 MPH), hot, dry winds with very low (<15%) relative humidity. Santa Ana winds originate over the dry desert land and can occur anytime of the year; however, they generally occur in the late fall (September through November). This is also when non-irrigated vegetation is at its lowest moisture content. The undeveloped land in proximity to the project can contribute to a damaging wildland fire event. Any wind or topography driven wildfire burning under a northeastern (Santa Ana) wind pattern through areas to the north and east would create a wildland fire hazard to the proposed project. Wildland fires starting south of the proposed project on a typical fire day with a southwest wind will likely burn through the walled easement area and will generally not be considered a significant wildland fire hazard. Areas that could likely burn west of the project site, would be a minimal hazard to the development, because of road widths. The typical prevailing summer time wind pattern is out of the south or southwest and normally is of a much lower velocity (5-19 MPH with occasional gusts to 30-MPH) and is associated with higher relative humidity readings. All other (northwest, south, west) wind directions may be occasionally strong and gusty. However, they are generally associated with cooler moist air and often have higher relative humidity (> 40%). They are considered a serious wildland fire weather condition when wind speeds reach greater than 20-MPH. All residential structures in the area are threatened through wind-blown embers. The installation of ‘ignition resistant construction’ will generally mitigate against a windblown ember threat (see Section 5.3 for a discussion of these features). The goal of this FPP is to prevent the loss of lives, buildings and personal property when wildfires occur. The challenge is using a best practices approach to construction and vegetation management, within a fully functioning mixed chaparral habitat. This goal is accomplished by requiring the home to be built with ignition resistant materials and requiring the site to be properly designed and maintained with vegetation management treatments that safely mitigate the fire hazard to insignificant levels. 2.4 - Predicting Wildland Fire Behavior The BEHAVE 5.0.5 Fire Behavior Prediction and Fuel Modeling System developed by USDA–Forest Service research scientists Patricia L. Andrews and Collin D. Bevins at the Intermountain Forest Fire Laboratory, Missoula, Montana, is one of the best systematic methods for predicting wildland fire behavior. The BEHAVE fire behavior computer modeling system is utilized by wildland fire experts and managers nationwide. The program projects the expected spotting distance, rate-of-spread and flame lengths with a reasonable degree of certainty for use in Fire Protection Planning purposes. FIREWISE 2000, Inc. used BEHAVE 5.0.5 Fire Behavior Prediction Model Software for the fire behavior assessments discussed below. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 13 of 35 2.5 - Wildland Fire Behavior Calculations for the Off-Site Hazardous Vegetative Fuels Wildland fire behavior calculations have been projected for the hazardous vegetative fuels on the undeveloped areas in proximity to the proposed site. These projections are based on scenarios that are ‘worst case’ San Bernardino County fire weather assumptions in the vicinty of the project area. Historical weather data was obtained from the RAWS (Remote Automatic Weather Station) network stations closest to the project area. The area modeled is north of the project boundary, which runs east to west along the project northern boundary. See Photo 7 for depiction of fuel bed. The worst case scenarios are depicted below in Tables 2.3.1 and 2.3.2. All tables display the expected Rate of Fire Spread (expressed in feet per minute), Spotting Distance (expressed in miles) and Flame Length (expressed in feet) and include the calculation inputs used in the BEHAVE program which were obtained from project site observations and fuel moisture levels typically observed during the local fire season. The tables also show the change in Rate of Fire Spread, Spotting Distance, and Flame Length following the completion of the required Vegetation Management. As a benchmark the following table provides fire with zero wind, only effect will be from slight rise in elevation from south to north. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 14 of 35 Table 2.3.1 Fire Scenario #1 (Late Fire Season With 70 MPH North, Northeast And East Wind Conditions) Edison Easement & Open Space North of Boundary Future View Fuel Model SCAL 18 Fire Behavior Calculation Input Data • 0.1 percent slope • 35 mph Midflame wind speed • 225o aspect from north • 45o wind direction from north Anticipated Fuel Moistures * 1-Hour Fine Fuel Moisture of ………....2% * 10-Hour Fuel Moisture of....………...… 3% * 100-Hour Fuel Moisture of ………...…..5% * Live Herbaceous Fuel Moisture of.….…30% * Live Woody Fuel Moisture of……..........50% Expected Fire Behavior Fuel Model SCAL 18 Rate of Spread - 376.1 ft/min Fireline Intensity - 27322 BTU's/ft2 Flame Length - 49.4 feet in length Expected Flame Lengths with 50% Fuel Treatment In thinning zones Flame Length - 24.7 feet in length Table 2.3.2 Fire Scenario # 2 - Fire Approaching from the west to east (Late Fire Season With 30 MPH South, Southwest and West Wind Conditions) Edison Easement north of Boundary Future View Fuel Mode SCAL18 Fire Behavior Calculation Input Data • 0.01 percent slope • 13.8 mph 20-foot wind speed • 0o aspect from north • 270o wind direction from north Anticipated Fuel Moistures * 1-Hour Fine Fuel Moisture of..………...2% * 10-Hour Fuel Moisture of.…………...…3% * 100-Hour Fuel Moisture of.....……...…..5% * Live Herbaceous Fuel Moisture of.…...30% * Live Woody Fuel Moisture of……........60% Expected Fire Behavior Fuel Model SCAL 18 Rate of Spread - 163.1 ft/min Fireline Intensity - 11790 BTU/ft/s Flame Length - 33.6 feet Flame Lengths in thinned area 16.8 feet Notes: Models are worst case scenarios. They do not take into account access roads, clearing around towers and areas of less than continuous fuel bed, which would tend to dampen the output flame lengths. The runs were done without changes in input tons per acre. In each run the lower portion of the panel indicates flame lengths after a 50% reduction in fuel load by thinning. Model Results for spotting requires there be a receptor available, only estimates the potential downwind. Both models results are for 1.4 to 3 miles downwind. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 15 of 35 3.0 ASSESSING STRUCTURE IGINITIONS IN THE WILDLAND/URBAN INTERFACE Structure ignitions from wildland wildfires basically come from three sources of heat: convective firebrands (flying embers), direct flame impingement, and radiant heat. The Behave Plus Fire Behavior Computer Modeling Program does not address windblown embers or firebrands. Ignition resistant exterior building materials will be the principle construction requirement to protect the structure from, wind driven embers and radiant heat (see APPENDIX ‘C’ for the description of ‘ignition resistive construction). 3.1 - Firebrands Firebrands are pieces of burning materials that detach from a burning fuel due to the strong convection drafts in the flaming zone. Firebrands may also be referred to as embers. Firebrands can be carried a long distance (one mile or more) by fire drafts and strong winds. Severe wildland/urban interface fires can produce heavy showers of firebrands. The chance of these firebrands igniting a structure will depend on the size and number of the firebrands, how long each ember burns after contact, and the type of building materials, building design, and construction features of the structure. Firebrands landing on combustible roofing and decks are common sources for structure ignition. They can also enter a structure through unscreened vents, decks, chimneys, unprotected skylights, and overhangs. Even with non-combustible roofing, firebrands landing on leaves, needles, and other combustibles located on a roof (due to lack of maintenance) can cause structure ignition. Any open windows, doors, or other types of unscreened openings are sources for embers to enter a structure during a wildland fire. If these maintenance issues are addressed on a regular basis, firebrands should not be a concern for future homeowners as the building will be constructed with ignition resistant building materials. 3.2 - Radiant Heat/Direct Flame Impingement Radiation and convection involve the transfer of heat directly from the flame. Unlike radiation heat transfer, convection requires that the flames or heat column contact the structure. An ignition from radiation (given an exposed flammable surface) heat transfer depends on two aspects of the flame: 1) the radiant heat flux to a combustible surface and, 2) the duration (length of time) of the radiant flux. The radiant heat flux depends on the flame zone size, flame-structure distance, and how much the combustible material of the structure is exposed to the flame. While the flame from a wildfire may approach 1,800 degrees Fahrenheit, it is the duration of heat that is more critical. For an example, a blow torch flame typically approaches 2,100 degrees Fahrenheit yet a person can easily pass his/her hand through the flame. Heat duration only becomes critical to a home with a wood exterior surface if the heat is allowed to remain for 30-90 seconds. Research scientist Jack Cohen of the United States Forest Service has found that a home's characteristics--its exterior materials and design in relation to a 100 foot area around a home will principally determine the home ignition potential. He calls the home and its immediate surroundings the home ignition zone. In a study of ignition of wood wallboard, tests by a USDA Forest Service research team described in the Proceedings, 1st International Fire and Materials Conference showed that flame impingement for sufficient length of time (approximately 1 min.) ignites a typical hardboard siding material. Since the requirements in this FPP provide for fuel treatment, a non-combustible wall and 1-hour fire resistive construction, the likelihood of the home’s exterior reaching ignition temperature from radiant or convective heat is unlikely. Fire agencies consider vegetation management as a principal approach to wildland fire hazard reduction. Whenever the flame length, can reach close proximity to the structure for 1-2 minutes in duration or more, there is a high probability of structure ignition. Contact with a fire's convection heat column also may cause ignition but the temperature of the column’s gases are generally not hot enough or long enough in duration to sustain the ignition. Comparing the expected wildland fire behavior projections in each of the scenarios in Section 2.3 against the required fuel modification zones outlined in Section 5.0, demonstrates substantial reductions in the expected flame length and fireline intensity. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 16 of 35 By requiring the structures exposed to the threat of wildfire to incorporate the following guidelines, those structures will be provided with the most effective treatment for minimizing losses from flame impingement and associated radiant heat intensities. • Each structure is constructed of ignition resistant building materials. • The area surrounding each structure contains an irrigated zone (defensible space) and a thinning zone (low fuel volume buffer strip) between the irrigated zone and the untreated fuels. The eventual homeowners shall be required to maintain their properties to Zone 1 and Zone 2 Vegetation Management standards and shall keep the roofs and rain gutters free of leaves, needles and other combustible debris. All firewood and other combustible materials must be properly stored away from the structures (minimum of 30’) so that burning embers falling on or near the structures have no suitable host. All future homeowners are responsible for maintaining their homes and for keeping all doors and windows tightly closed whenever a wildland fire is reported in the vicinity. 3.3 - Fire Resistant Plant Palette Wildland fire research has shown that some types of plants, including many natives, are more fire resistant than others. These low fuel volume, non-oily, non-resinous plants are commonly refered to as ‘fire resistant’. This term comes with the proviso that each year these plants are pruned, all dead wood is removed and all grasses or other plant material are removed from beneath the circumference of the shrub canopies. Some native species are not considered ‘undesirable’ from a wildfire risk management perspective provided they are properly maintained year round (refer to APPENDIX ‘A’ for a list of prohibited plant species). Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 17 of 35 4.0 FIRE DEPARTMENT RESPONSE TIMES San Bernardino County Fire Department (SBCFD) Station 79 is the closest Engine Company within the City of Fontana. It is located at 5050 Coyote Canyon Road south of Duncan Canyon Road. The approximate distance is 1.4 miles. Calculated response time at 35mph using NFPA 1142, would be 2.3 minutes. SBCFD Station 78, located at 7110 Citrus Avenue, north of Baseline Avenue, is approximately 4.7 miles from the site, with an estimated response (driving time) of approximately 10 minutes. There is no assurance that the closest fire station, will be in its station when a wildfire threatens Hunters Ridge from an ignition in the adjacent wildland. Engines may respond from other stations located further away or from other incidents. On high/extreme fire danger days there often may be multiple fire starts and engine companies may be already deployed on other incidents. This is why FIREWISE 2000, Inc. planned projects use ‘defensible space’, ignition resistant building features, and key fuel treatment strategies that enable residents to substantially increase their ability to survive a wildfire on their own and without the loss of their structure. The goal of this FPP therefore, is to make Hunters Ridge II and its homeowners as safe as possible and able to survive on their own until such time as firefighting equipment arrives and/or can be safely evacuated. 5.0 VEGETATION MANAGEMENT ZONE DESCRIPTIONS & REQUIRED TREATMENTS Below are the descriptions and required treatments for the Vegetation Management zones. All distances in this report are measured horizontally. These distances are depicted on the attached Fire Protection Plan Exhibit. The homeowners shall be responsible for maintaining Vegetation Management Zones within their lot. In the event a lot is repossessed, the unit/agency holding title to the lot will be responsible for the maintenance. 5.1 - Vegetation Management Zone 1 (Shown on the Fire Protection Plan Exhibit) Homeowner Maintained Defined Zone 1 is commonly called the defensible space zone and shall be free of all combustible construction and materials. It is an irrigated zone of varying widths. It is measured from the exterior walls of the structure or from the most distal point of a combustible projection and extends outward. It provides the best protection against the high radiant heat produced by a wildfire. It also provides a generally open area in which fire suppression forces can operate during wildfire events. This zone includes a nearly level or level-graded area around the structure. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 18 of 35 Required Landscaping All plant materials, including shrubs, ground cover and trees, shall be of approved materials. Acceptable to the City of Fontana and the San Bernardino County Fire Department. Removal of dead and dying vegetation is required on an ongoing basis. The following points should be followed as a best practice. ▪ An automatic irrigation system, and on-going irrigation, is required. ▪ Water conserving type, ignition resistant, landscaping designs, where compatible, and hardscape such as concrete, rock pavers, and similar noncombustible surfaces are encouraged. ▪ Focus should be on approved ground covers and irrigated lawns that should be maintained at a height that does not exceed an approximate 4-6 inches. ▪ Within one foot of structure, use non-combustible rock, gravel, concrete maintained lawn and ignition resistant shrubs and flowers. Plants shall be low growing and well irrigated. Plants shall be ignition resistant and be single specimens or a grouping not exceeding five plants. Mature heights of plants and shrubs shall not exceed 36 inches. However, isolated shrubs up to 48” tall, and of an approved type, may be placed in the first 10’ to frame the architecture of the home, provided they are a minimum of 2’ from the structure., and are not on the Undesirable Plant list in this plan. ▪ Spacing between mature canopies of shrubs, or group of like species, should be 2 times the height of the shrub for slopes less than 20%. Plants or shrubs are allowed under drip line of trees, provided there is a minimum clearance of 3 times the shrub height between the shrub and the lowest tree limb. No vines shall be attached to structures. No hedges are allowed. ▪ Trees are to be planted such that the mature canopies will be at least 10 feet from the exterior walls and roof of the structure or from the most distal point of a combustible projection, an attached accessory structure, or an accessory, and at least 15 feet from a chimney or vent (San Bernardino County Fire Department requirement). ▪ Trees shall be spaced 10 feet between mature canopies on slopes 20% or less. Trees shall be single specimens selected from the City approved tree list and not on the prohibited plant list in this plan. ▪ Trees shall be maintained such that the branches and limbs closest to the ground are pruned to a height from the ground that is equal to 1/3 the overall height of the tree or six feet from adjacent ground, whichever is less. ▪ On the northern tract boundary, lots adjacent to the SCE easement shall have a 6-foot high masonry wall, height to be measured from the SCE corridor grade. Fuel modification within Zone 1 shall be completed according to the guidelines in this plan on an ongoing basis. Those private lots that fail to comply with the maintenance standards shall be noticed as outlined in the CC&R’s. All trees must be maintained to the current ANSI A300 standards [Tree, Shrub, and Other Woody Plant Maintenance —Standard Practices Pruning)]see(www.treecareindustry.org/public/gov_standards_a300.htm). 5.2 - Vegetation Management Zone 2 (Shown as on the Fire Protection Plan Exhibit) Defined Fuel Modification in this off-site area is the responsibility of the Community Facilities District (CFD). Enforcement will be by the City and Fire Department through their ongoing Fuel Modification/Hazard Abatement Programs. See reference in Sec 7 to CFD. Zone 2 is a transition area between the strict requirements of Zone 1 and the undisturbed native vegetation designed to maintain a reasonably open character in this area. Zone 2 is a non-irrigated thinning zone, beginning at the 6 ft CMU fire barrier and continuing north to 100 feet. 73.5 Feet is subject to Fuel Modification. Of the 100 foot area a 25 foot wide drivable Fire Access Easement is provided, on the west end is a hammerhead turnaround. Access will be from the cul-de-sac on Moncton Way. Along the northern project boundary, the required distance for off-site treatment is 100 feet. The entire 100 feet is on the remainder portion. (See the Fuel Treatment Exhibit). Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 19 of 35 Thinning zones are utilized to reduce the fuel load of a wildland area adjacent to urban projects thereby reducing the radiant and convective heat of wildland fires. The intent is to achieve and maintain an overall 50 percent reduction of the canopy cover spacing and a 50 percent reduction of the original fuel loading by reducing the fuel in each remaining shrub or tree without substantially decreasing the canopy cover or the removal of tree holding root systems. Required Landscaping and Maintenance Thinning the native vegetation to a point where 50% open space is created. Removal of all dead, woody debris and exotic flammable vegetation, including species that are referenced in Appendix ‘A’. No construction is allowed in Zone 2. • Annually remove any undesirable exotic vegetation (See APPENDIX ‘A’) to maintain a 50% thinning from the original vegetation cover. • Native annual and perennial grasses will be allowed to grow and produce seed during the winter and spring. As grasses begin to cure (dry out), they will be cut to 4 inches or less in height. • As needed remvoal of dead and dying vegetation and highly flammable exotic species (see APPENDIX ‘A’). • Allowances for the needs of protected species and habitats will be considered in this zone. • Any fuel modification performed outside the approved Hunter Ridge II Fuel Modification Zone, should be reviewed by a qualified Biologist or have Resource Agency approval. 5.3 - Construction Standards All structures within the proposed development shall meet all wildland/interface standards to the satisfaction of the City of Fontana and SBCFD and be designed and constructed to current ignition resistant construction standards. Reference material can be found in APPENDIX ‘B’. A list of detailed construction standards from the Chapter 7a of the 2016 Building Code and Sec 337 of the California Residential Code can be referenced in APPENDIX ‘C’. All non-habitable accessory structures such as decks, balconies, patios, covers, gazebos and fences shall be built from non-combustible or ignition resistant materials. The homeowners are not restricted from having concrete patios, concrete walkways or swimming pools (concrete or fiberglass) within the Vegetation Management Zones in compliance with other codes. Refer to APPENDIX ‘D’ for examples and descriptions of non-combustible decks, patio covers, and railings for these non-habitable accessory structures. Other types of non-combustible, non-habitable structures may be permissible with the approval of City of Fontana, and SBCFD. Construction or building permits shall not be issued until the fire code official inspects and approves required fire apparatus access and water supply for the construction site. Prior to the delivery of combustible building construction materials to the project site the following conditions shall be completed to the satisifaction of the jurisdiction having authority. • All wet and dry utilities shall be installed and approved by the appropriate inspecting department or agency. • Clearance of Zone 1 vegetation and approved Zone 2 vegetation management shall be provided prior to combustible material arriving on the site and shall be maintained throughout the duration of construction. Fire code officials may require additional vegetation management and/or defensible space when warranted. 6.0 INFRASTRUCTURE 6.1- Water Supply The Project will obtain its water supply from the Fontana Water Company. An extension of the public water system with new pipelines and hydrants will be built to serve the area. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 20 of 35 The system shall be engineered to the requirements of Fontana Water Company, San Bernardino County Fire Department and the City of Fontana. In addition, the required flow and pressure must meet the demands required for residential sprinkler systems. 6.2 - Access Roads/Driveways and Gates Access to Hunters Ridge II will be from Moncton Way with a cross street of Labrador Ave. Access to the Fuel Treatment area north of the project boundary will be from Moncton Way at terminus of cul- de-sac, the drivable Fire Access Easement will have a hammerhead turnaround on the west end. Required signage; S.B. County Fire Access Drive No Parking or Stopping at any Time. Road design will conform to City of Fontana Street Design Standards and if applicable San Bernardino County Standards. All paved roads will be constructed to support an 80,000lb fire apparatus, or conform to applicable SBCFD requirements. Public streets shall not be gated. 7.0 COMMUNITY FACILITIES DISTRICT A Community Facilities District (CFD) is an area where a special property tax is levied on property owners within a community to finance improvements. Hunter Ridge II’s on-going fuel treatment and maintenance will be funded by a CFD. The TTM 20078 Maintenance CFD will fund up to five notifications/inspections per year for fuel modification, as determined by the City. The City will inspect private lots in this development for reasonable compliance with this plan and the City requirements. The City will also inspect offsite, adjacent properties for reasonable compliance with their requirements as currently enforced by the City. 8.0 HOMEOWNER EDUCATION The homeowner, by reviewing this Fire Protection Plan and the community’s CC&R’s shall be aware of the herein described fire protection measures; the types of non-combustible construction and the plant materials that are allowed within their lot boundary. Of particular importance are APPENDICES ‘A’ and ‘D’ of this plan, which provides guidance in the types of plants that are allowed or prohibited in landscaped areas and appropriate construction within Vegetation Management Zones. Plant selection and overall maintenance of your property is critical as embers often travel over a mile during Santa Ana wind events. Homeowners are advised to look at Fontana Fire Protection District website and navigate to http://fontana.org/DocumentCenter/Home/View/2143. The document provides excellent information on preparations for a wildfire event. Additional resource information can be found on the San Bernardino County Fire web page. 9.0 FIRE PROTECTION PLAN EXHIBIT FIRE PROTECTION PLAN EXHIBIT, is considered a part of this plan it depicts the location of all proposed vegetation management treatment locations as well as fire access roads, property lines, proposed hydrant locations and other pertinent information. APPENDICES Undesirable Plant Species APPENDIX ‘A’ Literature Referenced APPENDIX ‘B’ Ignition Resistant Construction Requirements APPENDIX ‘C’ Non-combustible & Fire Resistant Building Materials APPENDIX ‘D’ Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 21 of 35 This page left blank intentionally Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 22 of 35 APPENDIX ‘A’ UNDESIRABLE PLANT SPECIES Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 23 of 35 Prohibited plant list: Botanical Name Common Name Comment* Trees Abies species Fir F Acacia species (numerous) Acacia F, I Agonis juniperina Juniper Myrtle F Araucaria species (A. heterophylla, A. araucana, A. bidwillii) Araucaria (Norfolk Island Pine, Monkey Puzzle Tree, Bunya Bunya) F Callistemon species (C. citrinus, C. rosea, C. viminalis) Bottlebrush (Lemon, Rose, Weeping) F Calocedrus decurrens Incense Cedar F Casuarina cunninghamiana River She-Oak F Cedrus species (C. atlantica, C. deodara) Cedar (Atlas, Deodar) F Chamaecyparis species (numerous) False Cypress F Cinnamomum camphora Camphor F Cryptomeria japonica Japanese Cryptomeria F Cupressocyparis leylandii Leyland Cypress F Cupressus species (C. fobesii, C. glabra, C. sempervirens,) Cypress (Tecate, Arizona, Italian, others) F Eucalyptus species (numerous) Eucalyptus F, I Juniperus species (numerous) Juniper F Larix species (L. decidua, L. occidentalis, L. kaempferi) Larch (European, Japanese, Western) F Leptospermum species (L. laevigatum, L. petersonii) Tea Tree (Australian, Tea) F Lithocarpus densiflorus Tan Oak F Melaleuca species (M. linariifolia, M. nesophila, M. quinquenervia) Melaleuca (Flaxleaf, Pink, Cajeput Tree) F, I Metrosideros excelsus New Zealand Chistmas tree FR Olea europea Olive I Picea (numerous) Spruce F Palm species (numerous) Palm F, I,FR Pinus species (P. brutia, P. canariensis, P. b. eldarica, P. halepensis, P. pinea, P. radiata, numerous others) Pine (Calabrian, Canary Island, Mondell, Aleppo, Italian Stone, Monterey) F Platycladus orientalis Oriental arborvitae F Podocarpus species (P. gracilior, P. macrophyllus, P. latifolius) Fern Pine (Fern, Yew, Podocarpus) F Pseudotsuga menziesii Douglas Fir F Schinus species (S. molle, S. terebenthifolius) Pepper (California and Brazilian) F, I Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 24 of 35 Prohibited plant list: Botanical Name Common Name Comment* Tamarix species (T. africana, T. aphylla, T. chinensis, T. parviflora) Tamarix (Tamarisk, Athel Tree, Salt Cedar, Tamarisk) F, I Taxodium species (T. ascendens, T. distichum, T. mucronatum) Cypress (Pond, Bald, Monarch, Montezuma) F Taxus species (T. baccata, T. brevifolia, T. cuspidata) Yew (English, Western, Japanese) F Thuja species (T. occidentalis, T. plicata) Arborvitae/Red Cedar F Tsuga species (T. heterophylla, T. mertensiana) Hemlock (Western, Mountain) F Groundcovers, Shrubs & Vines Acacia species Acacia F, I Adenostoma fasciculatum Chamise F Adenostoma sparsifolium Red Shanks F Aeonium decorum Aeonium FR Aeonium simsii No common name FR Agave attenuata No common name FR Agave victoriae-reginae No common name FR Agropyron repens Quackgrass F, I Alogyne huegeii Blue hibiscus FR Anthemis cotula Mayweed F, I Arbutus menziesii Madrone F Arctostaphylos species Manzanita. Also note that Eastwood Manzanita grows to 8’ F Arundo donax Giant Reed F, I Artemisia species (A. abrotanium, A. absinthium, A. californica, A. caucasica, A. dracunculus, A. tridentata, A. pynocephala) Sagebrush (Southernwood, Wormwood, California, Silver, True tarragon, Big, Sandhill) F Atriplex species (numerous)** Saltbush F, I** Avena fatua Wild Oat F Baccharis pilularis Coyote Bush F Bambusa species Bamboo F, I Bougainvillea species Bougainvillea F, I, FR Brassica species (B. campestris, B. nigra, B. rapa) Mustard (Field, Black, Yellow) F, I Bromus rubens Foxtail, Red brome F, I Bromus carinatus California brome Grows to 5’, Dies if cut Castanopsis chrysophylla Giant Chinquapin F Cardaria draba Hoary Cress I Carpobrotus species Ice Plant, Hottentot Fig I Carissa macrocarpa Green carpet natal plum FR Prohibited plant list: Botanical Name Common Name Comment* Ceonothus griseus “ Louis Edmunds** Louis Edmunds Ceanothus Grow higher than 18”* Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 25 of 35 Ceonothus griseus var. horizontalis** Carmel Creeper Ceonothus Grows higher than 18”** Ceonothus griseus var. horizontalis “yankee point”* Yankee Point Ceonothus Grows higher than 18”** Ceonothus megacarpus** Big pod ceonothus Grows higher than 18”** Cirsium vulgare Wild Artichoke F,I Conyza bonariensis Horseweed F Coprosma pumila Prostrate Coprosma F Cortaderia selloana Pampas Grass F, I Cytisus scoparius Scotch Broom F, I Delosperma “alba” White trailing Ice Plant F Dodonaea viscosa Hopseed Bush F Drosanthemum Floribundum Rosea Ice plant F Eriodictyon californicum Yerba Santa F Eriogonum species (E. fasciculatum) Buckwheat (California) F Fremontodendron species Flannel Bush F Hakea suaveolens Sweet Hakea FR Hedera species (H. canariensis, H. helix) Ivy (Algerian, English) I Helix Canariensis English Ivy F Heterotheca grandiflora Telegraph Plant F Hordeum leporinum Wild barley F, I Juniperus species Juniper F Lactuca serriola Prickly Lettuce I Lamprathus aurantiacus Bush Ice Plant F Lamprathus spectabilis Trailing Ice Plant F Larix species (numerous) Larch F Larrea tridentata Creosote bush F Leymus condensatus Giant Wild Rye Grows to 9’ tall Lolium multiflorum Ryegrass F, I Lonicera japonica Japanese Honeysuckle F Mahonia species Mahonia F Mimulus aurantiacus Sticky Monkeyflower F Miscanthus species Eulalie Grass F Muhlenbergia species Deer Grass F Nassella ( stipa)leprida Foothill needlegrass Gets to 18” high. Can’t cut to 4”. Okay in mosaics (clumps) in certain areas of FMZ. Nassella (stipa) pulchra Purple needlegrass Same comment as above Prohibited plant list: Botanical Name Common Name Comment* Nerium Oleander Oleander Toxic Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 26 of 35 Nicotiana species (N. bigelovii, N. glauca) Tobacco (Indian, Tree) F, I Pennisetum setaceum Fountain Grass F, I Perovskia atroplicifolia Russian Sage F Phoradendron species Mistletoe F Pickeringia montana Chaparral Pea F Rhus (R. diversiloba, R. laurina, R. lentii)** Sumac (Poison oak, Laurel, Pink Flowering) F**. Poison oak presents a health hazard Ricinus communis Castor Bean F, I Rhus Lentii Pink Flowering Sumac F Rosmarinus species Rosemary ( except dwarf/prostrate variety) F Salvia species (numerous) Sage F, I Salsola australis Russian Thistle F, I Senecio serpens No common name FR Solanum Xantii Purple Nightshade (toxic) I, Toxic Solanum Douglasii Douglas Nightshade Toxic Silybum marianum Milk Thistle F, I Strelizia nicolae Giant bird of paradise FR Strelizia reginae Bird of paradise FR Thuja species Arborvitae F Urtica urens Burning Nettle F Vinca major Periwinkle I F = flammable, I = Invasive, FR- freezes in some areas ( see sunset book zones 18 and 19 as an example and also check the zones the development is in) NOTES: 1 Plants on this list that are considered invasive are a partial list of commonly found plants. There are many other plants considered invasive that should not be planted in a fuel modification zone and they can be found on The California Invasive Plant Council’s Website www.cal-ipc.org/ip/inventory/index.php. Other plants not considered invasive at this time may be determined to be invasive after further study. 2 For the purpose of using this list as a guide in selecting plant material, it is stipulated that all plant material will burn under various conditions. 3 The absence of a particular plant, shrub, groundcover, or tree, from this list does not necessarily mean it is fire resistive. 4 All vegetation used in Vegetation Management Zones and elsewhere shall be subject to approval of the Fire Marshal. 5 Landscape architects, homeowners, contractors, developer, or the HOA may submit proposals for use of certain other vegetation on a project specific basis to the Fire Department for review and approval. 6 This list was prepared by Hunt Research Corporation and Dudek and Associates and reviewed by, Scott Franklin Consulting Co, with certain plants added due to freezing and growth heights. 7 Native, drought tolerant plants are encouraged unless they are on this Prohibited Plant list or otherwise known as flammable or Invasive. 8 Notwithstanding the type of plant not included on this list, spacing and configuration of plantings in relationship to structures is critical to stopping fire spread. 9 **: certain species of Ceonothus, Saltbush and Sumac need to be maintained free of dead materials, which builds up in the plant. Remove any poison oak (Sumac). Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 27 of 35 APPENDIX ‘B’ REFERENCE MATERIAL Literature References 1. Standard Fire Behavior Fuel Models: A Comprehensive Set for Use with Rothermel’s Surface Fire Spread Model, General Technical Report RMRS-GTR-153. June 2005. Joe H. Scott, Robert E. Burgan, United States Department of Agriculture - Forest Service, Rocky Mountain Research Station, Missoula, Montana. 2. BEHAVEPlus: Fire Modeling System, version 5.0.5: Variables. General Technical Report RMRS-GTR- 213WWW Revised. September 2009. Patricia L. Andrews, United States Department of Agriculture - Forest Service, Rocky Mountain Research Station, Missoula, Montana. 3. BEHAVEPlus Fire Modeling System, Version 5.0.0 General Technical Report RMRS-GRT-106WWW Revised. June 2008. Patricia L. Andrews, Collin D. Bevins and Robert C. Seli. United States Department of Agriculture - Forest Service, Rocky Mountain Research Station, Missoula, Montana. 4. BEHAVEPlus Fire Modeling System, Version 5.0 User’s Guide. General Technical Report RMRS-GRT- 106WWW Revised. July, 2009. Patricia L. Andrews, Collin D. Bevins, Robert C. Seli. United States Department of Agriculture - Forest Service, Rocky Mountain Research Station, Missoula, Montana. 5. California Code of Regulations, Title 14, section 1280; California Public Resources Codes sections 4201 through 4204 6. California Government Code, sections 51175 through 51189 7. 2016 Fire Code portion of the CBSC, including appendices to Chapters 1 & 4 and appendices B, F & H 8. The 2016 California Fire Code with and adopted Local Amendments. 9. The 2016 California Residential Code, Section R337. 10. Chapter 7A-California of the 2016 Building Code 11. National Fire Protection Association - NFPA 13 Standard for the Installation of Sprinkler Systems in One – and Two-Family Dwellings and Manufactured Homes, 13-R &13-D, 2013 Editions 12. National Fire Protection Association - NFPA 1144 Standard for Reducing Structure Ignition Hazards from Wildfire (2013). 13. National Fire Protection Association - NFPA 1142, 2012 Edition. Table C.11 (b) Time-Distance Table Using an Average Speed of 35 mph 14. The California State and Local Responsibility Area Fire Hazard Severity Zone Map – Fire and Resource Assessment Program of CAL FIRE 15. San Bernardino County Fire Safety Overlay District FS-3 Requirements 16. San Bernardino County Ordinance 4011 20. Western Region Climate Center. Historic Climate Data from Remote Automated Weather Stations. RAWS USA Climate Archive. Reno, NV. Data for all Remote Automated Weather Stations is available at: http://www.raws.dri.edu/index.html Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 28 of 35 APPENDIX ‘C’ IGNITION RESISTANT CONSTRUCTION REQUIREMENTS Applicable standards for constuction in a Very High Fire Severity Zone as defined in Chapter 7A of the 2016 California Building Code (CBC) and the 2016 Edition of the California Residential Code (CRC) section R337 and those amendments by the City of Fontana. This Fire Protection Plan and its requirements are based on current state and local code adoptions, actual construction requirements shall be based on the most current code requirements, with local amendments, at the time of plan check submittal for proposed construction. 1. All structures will be built with a non-combustible Class A Roof Assembly, including a Class A roof covering. Roofs shall have a roofing assembly installed in accordance with its listing and the manufacturer’s installation instructions. 2. Where the roof profile allows a space between the roof covering and roof decking, the roof area will have one layer of minimum 72 pound (32.4 kg) mineral-surfaced, non-perforated cap sheet complying with ASTM D 3909 installed over the combustible decking. Openings on barrel tiles or similar roof coverings shall be constructed to prevent the intrusion of flames and embers, and be fire stopped with approved materials to prevent the accumulation of debris, bird nests, etc. between the tiles and decking material. 3. When provided, exposed valley flashings shall be not less than 0.019-inch (No. 26 galvanized sheet gage) corrosion-resistant metal installed over a minimum 36-inch-wide underlayment consisting of one layer of No. 72 ASTM cap sheet running the full length of the valley. 4. All rain gutters, down spouts and gutter hardware shall be constructed from metal or other non- combustible material to prevent wildfire ignition along eave assemblies. 5. Gutters shall be provided with the means to prevent the accumulation of leaf litter and debris that contribute to roof edge ignition. 6. All chimney, flue or stovepipe openings will have an approved spark arrester. An approved spark arrester is defined as a device constructed of nonflammable materials, 12 gauge minimum thicknesses or other material found satisfactory by the Fire Protection District, having ½-inch perforations for arresting burning carbon or sparks. It shall be installed to be visible for the purposes of inspection and maintenance. 7. The exterior walls surface materials shall be non-combustible or ignition resistant. In all construction, exterior walls shall extend from the top of the foundation to the roof and terminate at 2-inch nominal solid blocking between rafters at all roof overhangs, or in the case of enclosed eaves, terminate at the enclosure. Architectural foam may be applied only after the exterior wall surface meets the requirements of CBC Chapter 7A/CRC section R337. A finish and color coat may than be applied. 8. All eaves, fascias and soffits will be enclosed (boxed) with non-combustible materials. Eaves of heavy timber construction are permissible. Eaves of heavy timber construction are not required to be enclosed as long as attic venting is not installed in the eaves. This shall apply to the entire perimeter of each structure. For the purposes of this section, heavy timber construction shall consist of a minimum of 4x6 rafter tails and 2x decking. 9. Paper-faced insulation shall be prohibited in attics or ventilated spaces. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 29 of 35 10. Automatic interior fire sprinklers shall be installed according to the National Fire Protection Association (NFPA) 13D 2013 edition - Standard for the Installation of Sprinkler Systems in One and Two-family Homes and Manufactured Homes. 11. 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 one of the following requirements: • Must comply with ASTM E2886 • Must have passed an Ember Intrusion Test • Vent mesh material must be non-combustible and be a minimum of 1/16th inch and not exceeding 1/8th inch • All venting on the underside of eaves and cornices must have passed the Ember and Flame Intrusion Test • Turbine attic vents shall not be allowed. 12. No attic ventilation openings or ventilation louvers shall be permitted in soffits, in eave overhangs, between rafters at eaves, or in other overhanging areas. 13. All fences and gate assemblies (fences, gate and gate posts) shall be of non-combustible material. 14. All projections (exterior balconies, decks, patio covers, unenclosed roofs and floors, and similar architectural appendages and projections) or structures shall be of non-combustible material, or one- hour fire resistive construction, in accordance with CBC Chapter 7A and CRC section R337.All building material shall be ignition resistant, and may be heavy timber, or approved pressure-treated exterior fire-retardant wood. If such appendages and projections are attached to exterior fire-resistive walls, they shall be constructed to maintain the same fire-resistant standards as the exterior walls of the structure. 15. Attached and detached accessory structures shall be in built accordance with the CBC Chapter 7A and CRC section R337. 16. CBC Chapter 7A and CRC Section R337 Exterior doors. Exterior doors shall comply with one of the following, and must be self-closing, self-latching 1. The exterior surface or cladding shall be of noncombustible or ignition-resistant material. 2. Shall be constructed of solid core wood that comply with the following requirements: • Stiles and rails shall not be less than 1-3/8 inches thick • Raised panels shall not be less than 1-1/4 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. 17. Exterior glazed door assemblies shall comply with the following: 1.Be constructed of multi-pane glazing with a minimum of one tempered pane meeting the requirements of Section 2406 Safety Glazing. 2. Have a fire-resistance rating of not less than 20 minutes when tested according to NFPA 257. 3. Be tested to meet the performance requirements of SFM 12-7A-2. 18. All glass or other transparent, translucent or opaque glazing materials including skylights shall be constructed multi-layered glazed panels one layer of which must be tempered glass. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 30 of 35 19. Garage doors shall be fitted with a sweep seal and/or weather stripping on all sides suitable for preventing the intrusion of embers, if fitted with windows they shall meet the requirements listed above in 18. Additionally, it is recommended that garage doors be of the type that have a self-closing security feature. 20. Vinyl window assemblies are deemed acceptable if the windows have the following characteristics: • Frame and sash are comprised of vinyl material with welded corners • Metal reinforcements in the interlock area • Glazed with insulating glass, annealed or tempered (one layer of which must be tempered glass). • Frame and sash profiles are certified in AAMA Lineal Certification Program • Certified and labeled to ANSI/AAMA/NWWDA 101/LS2-97 for Structural Requirements APPENDIX ‘D’ Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 31 of 35 NON-COMBUSTIBLE AND FIRE RESTIVE BUILDING MATERIALS Prior to selection of a non-combustible approve material for your specific design or purpose it is suggested that you first search the Office of the State Fire Marshal web site http://osfm.fire.ca.gov/licensinglistings/licenselisting_bml_searchcotest.php. Navigate to DECKING FOR WILDLAND URBAN INTERFACE (W.U.I) or search by specific Company. If your material is approved, then check with your local jurisdiction to see if they also have it on an approved list. The following examples of non-combustible and fire-resistant building materials may be used for balconies, carports decks, patio covers and floors. I. NON-COMBUSTIBLE HEAVY GAGE ALUMINUM MATERIALS – Metals USA Building Products Group - Ultra-Lattice Ultra-Lattice Attached Patio Cover Ultra-Lattice Attached Patio Cover Ultra-Lattice Stand Alone Shade Cover Ultra-Lattice Vs. Wood II. FRX Exterior Fire-Retardant Treated (FRT) Wood Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 32 of 35 FRX® fire retardant treated wood may be used in exterior applications permitted by the codes where: public safety is critical, other materials would transfer heat or allow fires to spread, sprinkler systems cannot easily be installed, corrosive atmospheres necessitate excessive maintenance of other materials, or fire protection is inadequate or not readily available. The International Building, Residential and Urban-Wildland Interface Codes and regulations permit the use of fire retardant treated wood in specific instances. See below for typical exterior uses and typical residential uses. For information on fire retardant treated wood for exterior uses, visit www.frxwood.com III. TREX COMPANY, INC. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 33 of 35 IV. SOLID “WOOD” DECKING (refer to SFM website or request additional information from local jurisdiction) V. VINYL FENCE (not included in Chapter 7A) should the project use Vinyl Fencing the following reference is provided. Source: http://firecenterbeta.berkeley.edu/bwmg/attachments-1.html Depending on material and location, fencing can increase or decrease the vulnerability of a building to wildfire. A solid perimeter fence made of noncombustible materials (such as steel or concrete) has been shown to be an effective barrier against a radiant energy exposure from the fire front. Even a wood plank fence, if a high density species is selected and the boards are closely spaced, can provide some protection to the building from a purely radiant exposure. Depending on the pre-fire exposure, however, vegetative debris at the base of a combustible fence could result in ignition, as would direct flame contact. [Leonard, J. et al. 2006. Research and Investigation into the Performance of Residential Boundary Fencing Systems in Bushfires, Bushfire CRC, Report CMIT 2006-186] In this fire demonstration, a vinyl lattice fence, connected to a wood clad wall, was ignited with at burning standard ‘A’ brand. As is shown in the following photograph, fire did not spread to the wall, even though fine combustible debris was stuffed into areas in the lattice fence. Oct 1, 2018 Revised May 10, Jul 2, 2019 FPP Hunters Ridge II V3.0 Page 34 of 35 The vinyl lattice fence deformed, but did not sustain combustion after the ‘A’ brand burned out, and did not spread fire to the combustible wood wall.