Shingle Warranties and Storm Damage Claims

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Asphalt shingle manufacturers typically offer two distinct types of warranty coverage: a limited warranty against manufacturing defects, generally running for a long term or the life of the product, and a separate wind warranty that covers blow-off or lifting up to a specified wind speed, provided the shingles were installed according to the manufacturer’s published instructions. These warranties are contracts between the manufacturer and the property owner, running on an entirely separate track from any insurance policy covering the same roof. Wind warranty speed thresholds vary considerably by product line, with premium products sometimes carrying ratings well above what standard products offer, and the applicable threshold depends on which specific shingle was installed rather than on any general industry figure.

Because both processes can be triggered by the same storm event, it is common for a homeowner to explore a manufacturer warranty claim around the same time an insurance claim is being handled, particularly when blown-off shingles or workmanship questions are involved. The two processes generally do not overlap in scope or authority. A manufacturer’s warranty inspector evaluates the shingle’s condition against the warranty’s specific terms, which often focus narrowly on manufacturing defects or wind speed thresholds, while an insurance appraisal evaluates the extent and cause of physical loss under the applicable policy.

Warranty documentation, when it exists, can be a useful piece of evidence in an appraisal, particularly registration records showing installation date, product line, and any prior warranty claims or repairs on the roof. A denied or approved warranty claim does not by itself resolve an insurance claim, since the standards, evidence, and contractual language involved are different in each process, but the underlying facts, such as documented installation date or a manufacturer’s finding about a specific defect, can inform the broader picture an appraiser is building. Retaining copies of any warranty correspondence, including the specific findings a warranty inspector documented at the time of their visit, is a useful practice regardless of how the two processes ultimately conclude.

Coverage decisions, including how a warranty claim interacts with an insurance claim on the same roof, are ultimately governed by the specific policy and warranty language involved, and working out that interaction is a matter for the policyholder and the carrier, not something the appraisal process is designed to determine. An appraiser’s role is limited to evaluating the amount of loss under the policy once coverage and cause are established by the parties.

Manufacturer warranty inspections are also often narrower in scope than an insurance appraisal, since a warranty inspector’s task is typically to determine whether a specific manufacturing defect exists or whether documented wind speeds in the area exceeded the warranty’s stated threshold, rather than to evaluate the full extent of physical damage across a roof from a given storm. Registration records, which many manufacturers require within a set period after installation to activate enhanced warranty terms, can also become relevant when establishing the roof’s installation date and original product specifications as part of a broader factual record.

This is general educational material on the appraisal process rather than legal advice, and the specifics can vary with each state and policy.

Russ Lis is an independent property insurance appraiser and umpire in Minnesota who serves clients nationwide. Contact Appraisal Resolution.