AS the Trump administration stalls federal funding for projects intended to make states more resilient to climate change and private insurers decline to cover properties in high-risk zones, North Carolina just proved there’s another way to fund disaster preparedness: a US$600mil catastrophe bond (cat bond) that rewards homeowners and their insurer for installing “super roofs.”
Along North Carolina’s beaches, wind damage from hurricanes is such a threat that many private insurers have stopped offering coverage.
Hundreds of thousands of homeowners have been forced to buy coverage from the North Carolina Insurance Underwriting Association (NCIUA), the state-created insurer of last resort for coastal properties.
Like other insurers, NCIUA has to buy its own risk mitigation so it can pay customers if a major event causes more damage than it has saved from collecting and investing premiums.
One option is reinsurance and another is a cat bond, which pays out a specific amount if damage reaches a particularly severe level.
Cat bonds have become popular with institutional investors like hedge funds and endowments in recent years because they trigger rarely and otherwise deliver high returns.
For years, academics and brokers have discussed whether cat bonds could do more than just clean up after disasters-whether they could incentivise mitigation work that would lessen damages in the first place.
Earlier this year, NCIUA decided to test it: They offered investors a cat bond with two features linked to reducing wind damage risks to homes in its portfolio.
First, if no major losses occur each year, US$2mil returns to NCIUA-earmarked exclusively to incentivise homeowners to install super roofs that are especially wind-resistant.
Second, as more people add these roofs, the annual pricing on the bond resets to reflect the changing exposure.
It’s modest financially but revolutionary conceptually, says Shalini Vajjhala, founder and executive director of PRE Collective, a San Diego-based non-profit that works with communities and government agencies to clear barriers to building climate resilient infrastructure.
“The North Carolina programme is game-changing,” she says. “It’s a precedent-setting way of linking how you manage your financial risks with how you manage physical risks.”
Its origins go back to 2009, when the North Carolina legislature passed a law encouraging NCIUA to look at mitigation strategy.
The state was worried because the number of homes insured by NCIUA was creeping up as private insurers pulled back after damaging storms.
NCIUA officials researched options to reduce liability, landing on a seemingly simple one: roof fortification.
The technique uses things like ring-shank nails, designed for gripping, and extra sealing for the roof’s underlayer and edges.
There was one big roadblock. Super roofs prevented damage, but since they exceed building code requirements and cost roughly US$3,400 more than a standard roof, few homeowners installed them.
So in 2017, NCIUA began offering free super-roof replacements to homeowners who needed a new roof after a storm.
They met resistance at first, said Gina Hardy, chief executive officer of the association.
“With the free grants, people thought we were running some kind of scam.”
So the association engaged in consumer and contractor education. They also expanded incentives.
In 2019, NCIUA offered US$6,000 grants for super roofs during routine re-roofing, even though the upgrade cost just a fraction of that. They later increased it to US$10,000.
Homeowners essentially use the rest to defray regular roofing costs. It was those new grants that turned Marie Raynor, 59, from a sceptic to a buyer.
She’s lived in coastal North Carolina her entire life, and in 2024 her home in Wilmington, just a few miles from the beach, had a leaking roof.
She received a mailing advertising the roof programme, but worried it was an empty sales pitch; a call to the insurance office verified the programme’s veracity.
Eight weeks after she applied, she had a new roof. And now she is “thrilled.”
It was one of the most painless renovations of her life, she says, and she is convinced that the new construction is venting wind and even heat in the summer.
“I feel like it is also a rebate for all the years I paid insurance and didn’t use it,” she says.
About two years ago, the programme began really catching on. Today, more than 20,574 homes have these roofs or are in the process of adding them and more than 6,000 were added just this year.
And the financial benefits are already accruing. After every storm, NCIUA checks the results.
They’ve found that fortified homes had 60% fewer claims than code-compliant homes during regular storms, and 20% to 30% fewer claims with lower severity during named storms.
NCIUA says its financial analysis is that it will recoup US$72mil over 10 years on the investment in roofs, some from avoided losses after storms but even more from having to purchase less reinsurance because their portfolio is less risky.
With demand for roofs finally surging, Hardy wanted to make sure she had adequate capital for all the willing participants.
She began looking beyond her own surplus to fund grants.
Every year the association pays for a combination of reinsurance and cat bonds to cover portfolio risk.
She had read about cat bonds with resilience features in academic literature and now wanted to make one a reality.
“For a long time, people have been asking, ‘Could we monetise the savings from mitigation efforts to pay for the mitigation efforts?’ But it’s incredibly complex,” says Cory Anger, managing director of insurance-linked securities at Guy Carpenter, the broker for the bond.
North Carolina, however, has a five-year track record showing its programme works, which is very enticing to investors.
When the Cape Lookout Re bond was sold to investors in February, it not only secured an interest rate at the low end of expectations, according to Artemis, the industry trade magazine, it attracted far more interest than expected.
Offered at US$350mil, it instead drew US$600mil in investor interest. “It was a really successful offering,” Anger says.
The timing couldn’t be more critical. Since taking office, President Donald Trump has held back billions in Building Resilient Communities and Infrastructure grants awarded by the Biden administration.
Many working to make homes and cities more resilient to storms and wildfires worsened by climate change are hopeful the NCIUA’s success will be a model.
“North Carolina did the really heavy lifting, and when it’s done, it opens up this whole universe of opportunities where you can basically create a plug-and-socket between programmes that reduce risk and insurers who benefit,” says Vajjhala. — Bloomberg