Documenting Condition for Depreciation Decisions

Browse the full Resources Index

Depreciation is a number, but behind every depreciation figure sits a description of physical condition that either supports it or does not. When an estimate applies depreciation to a roof, a furnace, or an exterior paint job, that percentage is meant to reflect how much useful life the component had already consumed before the loss occurred, and the credibility of that figure depends heavily on how well the pre-loss condition was documented. A well-documented file gives a reviewer something concrete to evaluate rather than a bare number pulled from a generic age based table.

Photographs taken at the time of inspection carry much of this weight. Close images of granule loss on a roof, chalking or fading on painted siding, rust at flashing details, or wear patterns on flooring all give a visual basis for a condition assessment that goes beyond simply noting the age of the material. Moisture readings taken with a pin or pinless meter, when relevant, add an objective measurement to what might otherwise be a subjective visual call, and recording those readings at the time of inspection, rather than reconstructing them later, keeps the file accurate.

Manufacturer life expectancy data and published estimating life tables are commonly referenced alongside condition photographs, since age alone is a weak indicator without some sense of how a component was maintained. A twenty-year-old roof that was properly ventilated and free of prior leaks will often show different wear than a twenty-year-old roof installed over inadequate ventilation, and the physical evidence, not just the installation date, is what should drive the depreciation figure applied in the estimate. Maintenance records, when available, can supplement this picture, though they are frequently absent and the physical inspection has to carry more of the load.

It is worth being clear about where an appraiser’s role begins and ends here. Determining the physical condition and remaining useful life of a component is squarely within the estimating work of the appraisal process. Whether a given amount of depreciation is recoverable, and under what conditions, is a coverage question defined by the policy language and is a matter for the policyholder and the carrier to resolve, not something the appraisal process decides. Keeping that line clear helps prevent condition documentation from being confused with a coverage determination it was never meant to make.

Written condition notes taken alongside the photographs add context that an image alone cannot always convey, such as whether staining on a ceiling reflects a recent event or a long-standing condition the homeowner had already addressed, or whether visible granule loss on a roof edge is consistent with normal weathering rather than an isolated area of concern. Pairing a short written observation with each set of condition photographs, recorded at the time of inspection rather than reconstructed afterward, gives the file a more complete and more defensible record than photographs presented without any accompanying explanation of what the inspector observed and why it mattered to the depreciation figure ultimately applied.

General education only: the appraisal process described here can vary by state and policy language, and nothing in this article is legal advice.

Russ Lis is a working property insurance appraiser and umpire based in Minnesota, serving clients nationwide. Contact Appraisal Resolution.