Browse the full Resources Index
Hail damage on a cedar roof does not look like hail damage on an asphalt shingle roof, and evaluators who expect the same visual cues on both surfaces can miss what actually matters on wood. Asphalt shingles typically show granule loss and soft mat bruising at the point of impact, while cedar responds to impact with fracturing, splitting along the grain, or displacement of fibers on the wood surface. A hailstone striking a cedar shake can split it cleanly along the grain line, leaving a crack that runs the length of the exposed course, or it can leave a localized dent or fracture that does not travel the full length of the piece.
Distinguishing hail impact from ordinary weathering requires attention to where on the roof damage appears and how it is distributed. Hail generally falls with some directional bias depending on wind at the time of the storm, so impacts tend to concentrate on the slopes facing the storm’s approach, with fewer marks on sheltered slopes or areas protected by trees, dormers, or adjacent structures. A consistent pattern of fresh splits, exposed lighter colored wood beneath a weathered gray surface, and impact marks aligned with a specific storm date supports a finding of hail related damage, while random or evenly distributed cracking across all slopes is more consistent with age related checking that develops over years of freeze thaw cycling.
Freshness of the damage is a key evaluation point on cedar because the wood’s natural checking process can visually resemble impact splitting to an untrained eye. A split caused by a recent hail impact typically exposes unweathered wood at the fracture point, showing a lighter tan or amber color in contrast to the silvered gray of the surrounding weathered surface. Splits that have existed for years will have weathered to match the surrounding wood, with no color contrast at the break. This test is not absolute on its own, but combined with storm date verification, hail size data, and the location of impacts relative to storm direction, it forms a reasonable basis for assessment.
Testing organizations including the Institute for Business and Home Safety have published research on wood shake and shingle performance in hail, noting that cedar’s natural variability makes damage assessment more dependent on trained visual inspection than instrument based testing. Some evaluators use a chalk test, lightly marking the roof surface and observing whether marks correspond to actual mechanical damage or simply surface dirt and lichen growth, though this method has limitations and is generally used alongside other observations rather than as a standalone determination.
Because cedar roofs are a significant investment and repairs can be difficult to blend with existing weathered material, thorough documentation matters more here than on many other roofing types. Photographs from multiple angles, close up images showing the fracture surface color, and a roof diagram marking the location of each observed impact all support a more defensible evaluation, whether that evaluation is being conducted by an adjuster, a contractor, or an appraiser reviewing the claim later. A dated record of the inspection, cross referenced against local hail storm reports for the region, adds another layer of support that becomes valuable if the claim is reviewed again months or years after the original inspection.
This article is general education about how the appraisal process commonly works. It is not legal advice, and specific procedures can vary by state and policy.
Russ Lis is a working property insurance appraiser and umpire based in Minnesota, serving clients nationwide. Contact Appraisal Resolution.