By: Michael Harding, Senior Risk Solution Specialist, Markel Specialty
Weather conditions and natural disasters occasionally take a toll on vineyards and other agricultural production systems. Due to climate change and recurring droughts, some of which are severe, the frequency and severity of wildfires is expected to increase. These risks highlight the need for winegrowers and winery owners to be as prepared as possible to reduce risk.
Putting Your Plan Together
Many wineries may have already revisited their evacuation plans and filed them with their respective state agencies. Staying current of wildfire season developments can help enhance your ongoing planning and preparedness. Technology can also support your wildland fire planning and response. Additional planning resources by the American Red Cross are available at: www.redcross.org/get-help/how-to-prepare-for-emergencies/types-of-emergencies/wildfire.html
Steps to Take Before a Wildland Fire Event
• Take a close look at your winery’s communication protocol for evacuations. Everyone should have a clear understanding of any community alarms that signal when you need to evacuate. Assign specific accountabilities to staff so everyone works collectively to achieve a positive outcome of protecting lives and property.
• Work with your regional Forest Service to better understand emergency evacuation procedures in your area.
• Coordinate with the American Red Cross, FEMA, and other emergency agencies to give them the locations of your evacuation sites. Invite your local fire department out as part of a fire pre-incident plan. They should be provided a map of your property, highlighting planned evacuation routes. They can also offer technical assistance to support your plan.
• Prepare and post route maps for each site, including alternate routes. With a large fire, you may need to use “Plan B.”
• Consider forming a cooperative agreement with another site to share resources and serve as an evacuation site.
• Identify key equipment to be evacuated, including computers and other vital records. As part of your business continuity planning, programs should already have information backed up and stored remotely. But, in case you don’t, practice removing this equipment as part of your practice response.
• Stock an ample supply of water and easily-prepared foods until rescue arrives.
Controlling Wildland Fire Exposures
Wildland fires are one of the most catastrophic threats to wineries. Protecting your structures from ignition and fire damage is an important program objective second only to an evacuation plan. Taking precautions ahead of time can help reduce the exposure of a wildfire intrusion. There are a number of proactive measures a winery can take to mitigate the property damage a wildland fire can cause.
To support a fire adaptive community philosophy, the local fire department or authority having jurisdiction for your winery should require you to develop a landscape plan for your property. It is wise to seek their advice and incorporate their recommendations as you develop a plan specific to your location. You can learn more about fire adaptive community planning at the Fire Adaptive Communities, www.fireadapted.org
According to the NFPA 1144 – Reducing Structure Ignition Hazards from Wildland Fires, fire protection plans should address four zones around a property.
What are the primary threats to property during a wildfire?
Research around property destruction vs. property survival in wildfires point to embers and small flames as the main way that the majority of properties ignite in wildfires. Embers are burning pieces of airborne wood and/or vegetation that can be carried more than a mile through the wind, they can cause spot fires and ignite structures, debris and other objects.
There are methods for property owners to prepare their structures to withstand ember attacks and minimize the likelihood of flames or surface fire touching the structure or any attachments. Experiments, models and post-fire studies have shown structures ignite due to the condition of the structure and everything around it, up to 200’ from the foundation. This is called the Structure Ignition Zone.
What is the Structure Ignition Zone?
The concept of the structure ignition zone was developed by retired USDA Forest Service fire scientist Jack Cohen in the late 1990’s, following some breakthrough experimental research into how structures ignite due to the effects of radiant heat.
The structure ignition zone is divided into three zones; immediate, intermediate and extended.
The structure and the area 0-5’ from the furthest attached exterior point of the structure; defined as a non-combustible area. Science tells us this is the most important zone to take immediate action on as it is the most vulnerable to embers.
START WITH THE STRUCTURES then move into the landscaping section of the Immediate Zone.
• Clean roofs and gutters of dead leaves, debris and pine needles that could catch embers.
• Replace or repair any loose or missing shingles or roof tiles to prevent ember penetration.
• Reduce embers that could pass through vents in the eaves by installing 1/8” metal mesh screening.
• Clean debris from exterior attic vents and install 1/8” metal mesh screening to reduce embers.
• Repair or replace damaged or loose window screens and any broken windows. Screen or box-in areas below patios and decks with wire mesh to prevent debris and combustible materials from accumulating.
• Move any flammable material away from wall exteriors – wooden pallets, mulch, flammable plants, leaves and needles, firewood piles – anything that can burn. Remove anything stored underneath decks or porches.
5-30’ from the furthest exterior point of the structure. Landscaping/hardscaping – employing careful landscaping or creating breaks that can help influence and decrease fire behavior.
• Clear vegetation from under large stationary propane tanks.
• Create fuel breaks with driveways, walkways/paths, patios, and decks.
• Keep lawns and native grasses mowed to a height of 4”.
• Remove ladder fuels (vegetation under trees) so a surface fire cannot reach the crowns. Prune trees up to 6-10’ from the ground; for shorter trees do not exceed 1/3 of the overall tree height.
• Space trees to have a minimum of 18’ between crowns with the distance increasing with the percentage of slope.
• Tree placement should be planned to ensure the mature canopy is no closer than 10’ to the edge of the structure.
• Tree and shrubs in this zone should be limited to small clusters of a few each to break up the continuity of the vegetation across the landscape.
30-100’, out to 200’. Landscaping – the goal here is not to eliminate fire but to interrupt fire’s path and keep flames smaller and on the ground.
• Dispose of heavy accumulations of ground litter/debris.
• Remove dead plant and tree material.
• Remove small conifers growing between mature trees.
• Remove vegetation adjacent to storage sheds or other outbuildings within this area.
• Trees 30 to 60’ from the structure should have at least 12’ between canopy tops.
• Trees 60 to 100’ from the structure should have at least 6’ between the canopy tops.
If an Evacuation Becomes Evident
• If possible, identify the location and direction of the fire event. Remain cognizant that this can quickly change direction and speed.
• Clearly explain your evacuation procedures to all that may be involved.
• Identify special medical needs and gather emergency equipment and necessities, including trauma supplies for ready access.
• Designate enough vehicles to evacuate everyone safely. Reinforce safe driving practices with all drivers.
• Equip staff with emergency communications equipment (cell phones, walkie-talkies, whistles, flares, colored smoke canisters, etc.). Ask your local jurisdiction authority for suggestions.
• Load key equipment, vital records, food, and water.
• Ask qualified associates to disconnect and move LP gas tanks to a safer location, such as a gravel lot, or follow the manufacturer’s instructions to empty the tanks.
• Warn firefighters of underground fuel storage or LP gas tanks before you leave.
Making your facility fire resistant can help reduce property loss. However, keep in mind that these steps should be done only by assigned staff in conjunction with an evacuation and never require or allow staff to remain behind. Close and secure all doors and windows once combustible materials have been moved away from these openings.
• Wet down buildings and roofs. There are commercial grade fire retardant products available that can help support your efforts to protect your property. But do your research ahead of time; and don’t let the application of these products reduce the priority of evacuating.
• Have qualified personnel cut down trees in the fire path, bulldoze a firebreak, and cut field grass as short as possible.
• Remove brush and dry vegetation near buildings.
Fire evacuation – What you need to know
During wildfire season, you may be forced to evacuate in a hurry. People are your first priority; to include guests, staff and firefighters. Most fire evacuations provide at least a three-hour notice; but due to the scope of your operation, you may need to do it sooner. Take proactive steps before and during an evacuation to reduce anxiety and avoid injuries. Plan, prepare and practice.
In the event your area experiences a wildfire event, it is highly likely it will not only be monitored by your insurance agent, in addition to your insurance company. Pre-loss documentation, such as video recordings and pictures of buildings, business personal property inventories, should be up to date and included as part of your evacuation materials. Working with your agent is a great resource to understand what might be necessary to help with documentation, if you should need it.
• NFPA 1144 – Reducing Structure Ignition Hazards from Wildland Fires, 2018 Edition. National Fire Protection Association. Quincy, MA 02169, 2018
• Fire Adaptive Communities. Fire Adapted Communities Learning Network.
• Wildfire Safety.http://www.redcross.org/get-help/how-to-prepare-for-emergencies/types-of-emergencies/wildfire.html. © 2019 The American National Red Cross
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