When I first wrote about cosmetic damage exclusions and the Cannon Falls Area Schools case in The “Cosmetic Damage Exclusion” Won: What a Court Said About Hail-Dented Metal Roofs, I suggested that the real battle was not about dents in metal roofs. It was about words. More specifically, it was about whether courts would give meaning to every word the insurance company chose to write into its policy.
The Eighth Circuit has now answered that question in Cannon Falls Area Schools, ISD 252 v. The Hanover American Insurance Company, 1 and in doing so has issued one of the most significant appellate decisions to date interpreting cosmetic damage exclusions. While the court did not adopt every argument advanced by the policyholder, it rejected the district court’s central reasoning and held that the policy language requires far more than simply asking whether a roof presently leaks.
For policyholders, insurers, adjusters, contractors, and coverage lawyers, this decision deserves careful study because it illustrates how a few words in an insurance policy can completely change the outcome of a multimillion-dollar claim.
The dispute arose after an April 2022 hailstorm caused widespread indentations to the standing-seam metal roofs of Cannon Falls Elementary School and Cannon Falls High School in Minnesota. The parties agreed that the hail damaged the roofs and even stipulated to the amount of loss if coverage existed. The entire case turned on whether Hanover’s cosmetic damage exclusion eliminated coverage.
The exclusion provided:
We will not pay for cosmetic damage to roof surfacing caused by wind and/or hail. For the purpose of this endorsement, cosmetic damage means that the wind and/or hail caused marring, pitting or other superficial damage that altered the appearance of the roof surfacing, but such damage does not prevent the roof from continuing to function as a barrier to entrance of the elements to the same extent as it did before the cosmetic damage occurred.
That final phrase, “to the same extent as it did before,” ultimately became the focal point of the appeal.
In my earlier discussion of this case, I questioned whether courts should reduce this language to a simple “does it leak?” test. The policy does not say that cosmetic damage is excluded unless the roof leaks. Nor does it say coverage exists only if water has penetrated into the building. Instead, Hanover drafted an endorsement requiring the roof to continue functioning as a barrier to the elements “to the same extent” as before the hail damage.
Those additional words matter. The parties approached the issue from dramatically different perspectives.
The school district argued that the hail impacts immediately weakened the structural metal roof panels. Their engineering expert, Dr. Matt Phelps, conducted laboratory testing using Rockwell Hardness methods and concluded that the impacted metal had lost strength and could no longer withstand wind loads, snow loads, and future hail impacts to the same degree as before the storm. The school district argued that “the elements” include wind, snow, and hail, not merely rainwater, and that a roof which can no longer resist those forces to the same degree no longer functions “to the same extent” as required by the policy.
Hanover framed the case much more simply. It argued that the exclusion focuses exclusively on present functionality. Because neither roof leaked before the storm or afterward, Hanover maintained that the roofs continued functioning as barriers to the elements. According to Hanover, arguments about weakened metal, shortened service life, or increased susceptibility to future failure improperly attempted to rewrite the policy by adding requirements Hanover never agreed to insure. Hanover repeatedly emphasized that the exclusion uses the present tense, asking whether the roof “does” function as a barrier and not whether it “will” continue functioning years into the future.
The federal district court accepted Hanover’s interpretation almost entirely. Judge Katherine Menendez concluded that the exclusion focused on the roof’s present ability to keep the elements out and that no reasonable jury could find coverage because there had been no leaks or other intrusion of the elements during the three years following the storm. Even assuming Dr. Phelps’ testimony was entirely correct, the district court ruled that weakened metal and reduced structural capacity were legally irrelevant because the roofs had not yet failed to keep the weather outside.
The Eighth Circuit agreed with part of that reasoning, but rejected the most important part. Judge Gruender’s opinion first rejected the policyholder’s argument that merely shortening a roof’s expected lifespan removes damage from the cosmetic damage exclusion. The court concluded that the policy focuses upon present functionality rather than future deterioration. A roof that simply may not last as long in the future does not necessarily fall outside the exclusion.
That portion of the opinion is important because it prevents virtually every cosmetic damage claim from becoming a covered loss simply because an expert predicts accelerated aging. However, the court reached a very different conclusion regarding present structural performance.
The Eighth Circuit recognized that every roof has an upper limit to the amount of wind and snow load it can resist. That structural capacity is itself part of the extent to which the roof serves as a barrier against the elements. If hail damage reduces that load-bearing capacity, then the roof presently performs differently, even if it has not yet leaked.
The court explained that if a roof previously could bear three feet of snow but now could bear only two feet because of hail damage, then it no longer functions as a barrier to the elements “to the same extent” as before the storm. That interpretation gives independent meaning to every word Hanover placed in its endorsement.
That analysis is, in my view, the most significant aspect of the opinion. The district court effectively interpreted the exclusion to ask one question: Does the roof leak? The Eighth Circuit held that the policy asks a different question: Does the roof function to the same degree as before? Those questions are not the same inquiry.
Equally significant is what the Eighth Circuit did not do. The court did not hold that every dent defeats a cosmetic damage exclusion. Quite the opposite. The opinion recognizes that some dents may weaken a roof only in an insubstantial, immeasurable, or inconsequential way. Decorative components, gutters, flashing, or other nonstructural roof elements may still fall comfortably within the exclusion. Likewise, Hanover’s expert may ultimately persuade a jury that the dents in these roofs did not materially reduce their structural performance. Those factual questions remain open on remand.
This is a remarkably nuanced opinion. The policyholder did not receive everything it wanted. Reduced life expectancy alone is insufficient. The insurer did not receive everything it wanted either. The absence of leaks is no longer dispositive. Instead, the court recognized that structural functionality exists on a spectrum rather than as a binary proposition.
The opinion also illustrates the importance of careful policy drafting. Hanover argued that the endorsement should be interpreted as requiring present water intrusion. The Eighth Circuit noted that other insurers have drafted endorsements using precisely that language, requiring “water leaking through the surface of a metal roof” or “penetration of water” before coverage exists. Hanover did not use that language. Instead, it chose to state that the roof must continue to function “to the same extent.” Courts must interpret the words insurers actually write—not the words they later wish they had written.
The practical impact of this decision is substantial. For policyholders, cosmetic damage exclusions are no longer automatically resolved by asking whether a roof leaks. Structural performance now matters. If competent engineering evidence demonstrates that hail damage has measurably reduced a roof’s present ability to resist wind, snow, or other environmental loads, coverage may exist even without water intrusion.
For insurers, this decision highlights the importance of precise drafting. If the underwriting intent is to exclude all denting unless it results in actual water penetration, future endorsements will almost certainly be much more explicit.
For engineers and experts, laboratory testing, structural analysis, and careful evaluation of functional performance become increasingly important. Simply documenting dents, or simply documenting the absence of leaks, may no longer answer the coverage question.
Finally, this opinion reminds us that insurance cases are often decided not by broad principles but by a handful of carefully chosen words. Here, three words, “to the same extent,” ultimately changed the direction of the litigation.
Thought for the Day
“Freedom is hammered out on the anvil of discussion, dissent, and debate.”
— Hubert H. Humphrey
1 Cannon Falls Area Schools, ISD 252 v. Hanover American Ins. Co., — F4th —, 2026 WL 2148331 (8th Cir. July 27, 2026). See Cannon Falls Initial Brief; Hanover Answer Brief; Cannon Falls Reply Brief.
