Useful life & depreciation reference
Typical life by material, % depreciated at age.
Typical life by material, % depreciated at age.
Look up the typical useful life behind a depreciation call instead of guessing it. Pick the material or component — sixty-plus rows from 3-tab shingles to water heaters to upholstered furniture — enter its age, and you get the typical life with its range, the straight-line annual percentage, how depreciated the item is at that age, and estimated remaining life adjusted for condition. Reach for it every time Xactimate asks for age and life and the insured's answer is “I don't know, it came with the house.”
Straight-line depreciation divides 100% by the item's useful life: a 20-year 3-tab shingle sheds 5% a year, so at 8 years it is 40% depreciated. This reference holds typical lives compiled from public industry life-expectancy guides — the kind home inspectors use — with ranges, because a 3-tab in coastal sun lives differently than one in shade. Percentage depreciated caps at 90% here since functional items retain residual value, and remaining life flexes ±15% for good or poor condition. Carrier and Xactimate schedules are their own tables and vary; use this to anchor a defensible starting point, then price it in the depreciation calculator.
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Typical figures run about 20 years for 3-tab shingles (range 15–25), 25 for architectural laminates (22–30), 30 for wood shake, and 40–70 for metal. On straight-line math an 8-year-old architectural roof at a 25-year life is 32% depreciated. Actual schedules vary by carrier, and condition, ventilation, and climate move real-world life, so document what you see on the slope — curl, granule loss, prior repairs — alongside the age.
Divide age by useful life and multiply by 100: a 6-year-old carpet with a 10-year life is 60% depreciated, so a $2,000 replacement carries $1,200 of depreciation and a $800 ACV. Most practice caps depreciation short of 100% — this reference uses 90% — because a functioning item retains some value. Get the percentage here, then run the dollars through the depreciation (ACV ↔ RCV) calculator to get ACV, recoverable depreciation, and net after deductible.
No — these are typical values from public industry life-expectancy guides, the same family of numbers building inspectors use. Xactimate's depreciation schedules and each carrier's guidelines are their own proprietary tables and can differ by item and by program. Treat this reference as the defensible starting point and the sanity check: when a schedule's number is far off the typical range for the material, that's worth a question on the file.
Compute recoverable depreciation.
RCV → ACV → first check → depreciation check.
Squares from dimensions.
Add material overage to a quantity.