House Financial Services Subcommittee Issues Testimony From Insurance Institute for Business & Home Safety President Wright
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Members of the Subcommittee, thank you for the opportunity to speak with you today about the importance of residential resilience as we think about strengthening families, communities, and adapting to the adverse effects of wildfires across the American landscape. My name is
Severe weather disrupts lives, displaces families, and drives financial loss. IBHS delivers top-tier science and translates it into action so we can prevent avoidable suffering, strengthen our homes and businesses, inform the insurance industry, and support thriving communities. The perils we study at IBHS are part of the natural world in which we live, but social and economic disasters occur when these perils meet human populations that live or work in harm's way. To break the cycle of destruction, it is essential to address all aspects of the building performance chain: where you build, how you design and construct, and how well you maintain and repair. As a building science institute, IBHS focuses on the ways that weather behaves, what makes homes and businesses vulnerable, and how our buildings can be more resilient. We exist to help ensure that the places where people live, learn, work, worship, and gather are safe, stable, and as strong as the best science can equip them to be.
Wildfires have long been part of the American landscape. However, in recent years they have become more frequent and intense, often spreading into densely populated suburban neighborhoods where the economic losses and human suffering are significant. For instance, the 2020 wildfires burned 10.27 million acres and caused
Today, I would like to speak to you about what we know about wildfire risk and resilience: where the science is now and what we have yet to learn, as well as the resilience solutions that can help homeowners--right now--to meaningfully reduce the chance that their homes will burn. To start, I want to highlight three key points:
1. We must address the resilience of the built environment as a fundamental part of federal, state, and local wildfire public policy--and the heaviest lifting will occur at the state and local level.
2. We are not powerless. More than a decade of research, at IBHS and elsewhere, contribute to a scientific understanding of the mitigation actions, when undertaken collectively, that are most essential to reducing wildfire losses for individual properties.
3. Actions undertaken in
None of this is free. We cannot in one breath say "the climate is changing and making wildfires worse," and in the next breath say "I want the costs of building and insurance to be cheaper." The changing climate has a cost, and yet let me underscore my second point: we are not powerless. Strengthening our resilience to wildfire is among the most pressing challenges faced by too many American families, but solutions are within our reach.
The State of Wildfire Science
Wildfire is one of the most important perils we study at the
Based on this research, we now understand the behavior of wildfire around the built environment far better than we did ten years ago. Generally, wildfire causes damage to homes through three channels: flames, radiant heat, and embers. While the images of flames on nightly news reports gain the most attention, it is the embers that cause the vast majority of damage to homes and communities. Embers -- smoldering pieces the size of a hand -- can be carried aloft by wind for a half mile or more, bringing a wildfire well outside the predictable path of the flames. These embers are responsible for the vast majority of home ignitions caused by wildfires. And once a home ignites, it will be a complete loss 90 percent of the time. These findings have taught us that wildfires are essentially a home ignition problem, and that embers are the primary driver of these ignitions. By finding ways to reduce the likelihood that an ember ignites a home, we can meaningfully reduce that home's wildfire risk.
These findings are important and necessary, but they are not sufficient to fully understand and mitigate wildfire risk. We know that managing and mitigating wildfire risk requires actions undertaken at the property level to both the structure and the defensible space, and actions undertaken at the community level.
To date, the scientific understanding of community wildfire resilience is not as advanced as our understanding of mitigation at the individual home level. Understanding community resilience to wildfire is challenging because of the multiplicity of variables that contribute to - or reduce - it. These variables include topography, wind, vegetation management, seasonal drought conditions, neighborhood density, nature-based solutions (like fire breaks and buffers), the percentage of homes in a neighborhood that have undertaken meaningful property-level mitigation actions, and community-wide engagement through programs like Firewise. Understanding which of these variables are most important to community resilience, the availability of data for each of these variables, and how these variables interact are subjects of ongoing research for IBHS and others in the wildfire science space. I am confident that we will solve for this problem--and more work must be done to do so.
The Criticality of a Wildfire Resilient Built Environment
In
These startling statistics do not even fully capture the actual risk wildfire poses to people's homes and communities, given what we know about the behavior of wildfire. As I referenced earlier, embers -- which cause the vast majority of building ignitions during wildfires -- can fly a half mile or further ahead of the flames of a wildfire. As these embers land and ignite, they create more embers that winds carry even further ahead. What this means: more Americans than ever are moving into areas of known high wildfire risk, while wildfire risk encroaches outward.
Unlike any other natural peril, wildfires are strengthened when they reach the built environment. Buildings are literally fuel for the fire, meaning that our homes are not just at risk from wildfire, they contribute to its spread. In our post-disaster investigation of
Given these two unique facets of wildfire, our policy response must include making the built environment more resilient to wildfire. Wildfire resilience requires policy responses that recognize the complex interaction of the built environment and the natural environment. The federal government invests considerable resources into wildfire response and recovery - and most of these funds go to wildfire response and forest management. We also need to take action where people live.
We Know How to Make Homes Safer from Wildfires
In response to this critical need, IBHS developed Wildfire Prepared Home(TM) - a wildfire resilience standard and designation program incorporating available wildfire science, building performance characteristics, data analytics insights, and contributions from a diverse group of wildfire leaders - to provide homeowners, insurers, and policymakers with a risk reduction tool to prevent avoidable suffering, harden homes, and support thriving communities. In its initial phase, a Wildfire Prepared Home designation is available for single-family, site-built homes in
Wildfire Prepared Home is grounded in research identifying core mitigation actions that, when taken together, significantly reduce a given property's wildfire risk. These mitigation actions reduce the risk of ignition when embers reach suburban properties and, should ignition occur, remove pathways leading flames to the home. Our decade of wildfire research instructs that wildfire resilience requires a systems-based approach to mitigation actions--meaning that homeowners must undertake and maintain all the requisite mitigation actions to drive down their risk. Once achieved, the Wildfire Prepared Home designation signals that the wildfire risk to the designated home can be meaningfully distinguished from unmitigated or partially mitigated properties. The requisite mitigations actions included in Wildfire Prepared Home, which are achievable for both new construction and existing homes, focus on the roof, building features, and defensible space.
Roof. The Wildfire Prepared Home standard requires a Class A roof and non-combustible gutters and downspouts. The good news is that many homes throughout the American West already have this in place.
Building Features. The Wildfire Prepared Home standard has two requirements relating to building features. First, homeowners must have ember-resistant vents to prevent embers from intruding into a structure. In addition, homeowners must have a six-inch vertical noncombustible zone around the base of the house, an area in which wildfire embers are known to collect.
Defensible Space. While all mitigation actions included in the Wildfire Prepared Home program are necessary, perhaps none are as important as the defensible space requirements. First and foremost, homeowners must have and maintain an impeccable five feet, completely free of combustibles, around the entire base of their home (this area has also been called the "home ignition zone", the "ember-resistant zone", or "Zone 0"). This area must be free of vegetation, sheds, hoses, boats, propane tanks, or any other materials that could burn. Roofs and decks must also be kept clear of combustible material. Time and again, our research has demonstrated that embers collect in the five-foot area around a home, and those embers will ruthlessly seek out combustible material to ignite. A home that does not remove all combustibles from this area are at risk.
In addition, homeowners must trim trees and branches away from the five-foot zone around the house, including those located above the roof. Also, yards must be well-maintained and clear of debris, such as fallen branches, leaves, and other combustible materials. The program also requires that for homes with decks, underdeck areas must be cleared of combustibles and well-maintained, and underdeck areas four feet or less in height must be enclosed to reduce debris accumulation and resist embers. For homes with fences, any fencing attached to a home must be noncombustible.
In addition to the requisite mitigation actions required by the Wildfire Prepared Home standard, IBHS also has identified six additional mitigation actions that even more substantially reduce risk and qualify a home for a Wildfire Prepared Home + Plus(TM) designation:
* All fencing on the parcel must be single line and not back-to-back with neighboring parcels to reduce debris accumulation.
* Non-combustible siding materials are used on the exterior envelope of the home.
* Enclosed eaves.
* Enclosed the space under bay windows.
* Homes with decks use upgraded wildfire resistant deck materials.
* Windows are wildfire resistant or exterior shutters can be deployed.
These actions are achievable and effective, and a recent study of the
Moreover, this mitigation approach should have salutary effect on the insurance system in
Insurers look forward to leveraging Wildfire Prepared Home(TM) as effectively as they have used IBHS's FORTIFIED Home(TM) program in hurricane-prone regions to identify properties that have received meaningful mitigation measures. Wildfire Prepared Home(TM) may be a game changer for consumers and insurers in the wildfire space.... As more homes are hardened and more communities follow Paradise's lead,
Mitigating wildfire risk is essential for the safety of families and communities and for reducing the damage, disruption, and dislocation all too often associated with wildfire conflagrations; and its positive effect on the insurance system should be neither understated nor overstated.
Pulling Together: Federal, State and Local Actions to Reduce Wildfire Risk
Just as the mitigation actions to reduce property level wildfire risk must be undertaken collectively, so too must the actions of federal, state, and local policymakers to assist homeowners to achieve a higher degree of resilience. Three essential public policy lanes for reducing wildfire risk are:
* Stronger codes and standards for building and defensible space;
* Appropriately tailored financial incentives and support mechanisms to help homeowners invest in meaningful wildfire resilience; and
* Public education and consistent messaging about wildfire risk reduction - especially critical mitigation actions like a combustible-free home ignition zone in the five feet around the home.
It is important to note that while the federal government can play a supporting role in each of these policy lanes, the role of state and local governments is more direct and essential than that of the federal departments and agencies. In the building code space, the
Stronger codes and standards.
A recent study found that homes that meet wildfire codes were 40% less likely to be destroyed, compared to older homes. Unfortunately, while codes and standards for wildfire resilience have existed and evolved through regular code updates for decades, the adoption rates for existing wildfire codes and standards are even lower than the shamefully low adoption rates for modern versions of the International Residential Code, and far more sporadic in their usage. To strengthen the resilience of vulnerable homes and communities, adoption and enforcement of wildfire codes and standards must increase.
One key model for wildfire standards comes from the consensus process of the
In the absence of state action, or in addition to it, local governments can also use town and county ordinances to enact and enforce wildfire resilience measures. For example, the Town of Paradise -- which is already subject to the requirements of
Appropriately tailored financial incentives and support mechanisms.
For existing homes, homeowners must invest in retrofits to improve the resilience of their home and property. As with other natural perils, financial incentives can help provide needed nudges to encourage wildfire resilience investments, and more significant financial mechanisms may be necessary to help low- and moderate-income homeowners mitigate their risk. Actions at the federal, state and local level can provide these financial mechanisms to spur resilience-enhancing actions by homeowners.
Many people have difficulty effectively evaluating risk, particularly high impact, low likelihood risk like wildfire disasters. When it comes to natural perils like wildfires, people usually feel more protected than they are. This complacency can be an obstacle to people investing in their own resilience. This complacency is a place where
However, some people need more than a nudge -- they need financial support to undertake mitigation actions that they cannot otherwise afford. For these individuals, mitigation grant programs can mean the difference between resilience and ignition when embers fly through the air.
Public education and consistent messaging.
As more states and communities confront wildfire risk, a multitude of public, non-profit, and for-profit programs have sprung up in response. In any given community, a homeowner may hear messaging about wildfire from the local fire department, a wildfire prevention authority, town and county leaders, a neighborhood Firewise community, a local
IBHS always strives to translate our research into action so we can prevent avoidable suffering, strengthen our homes and businesses, inform the insurance industry, and support thriving communities. Risk communications is an important tool for doing so, because we understand that our science is only as good as people's ability to understand it and put into action. We strongly encourage federal, state, and local policymakers to coalesce around a science-driven set of recommendations for wildfire resilience and the actions that will mitigate such risk. A common message across multiple stakeholders will simplify and amplify the signal to homeowners, hopefully giving them clear guidance as well as a measure of hope. The newly formed
In closing, I would like to thank you for the recognizing the importance of wildfire mitigation for both resilient communities and healthy insurance markets, and the critical role IBHS research plays to help strengthen the built environment. Americans are not powerless against wildfire resilience -- it is possible to take actions today to meaningfully reduce the risk that one's home will ignite and burn. I appreciate the opportunity to share some of our ideas with you today.
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Original text here: https://financialservices.house.gov/uploadedfiles/hhrg-117-ba04-wstate-wrightr-20220922.pdf
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