Insurance · Math

Roof depreciation — what it really costs you.

Depreciation is how insurance companies pay less than the cost to replace your roof. Understanding it is the difference between getting 100% of your roof paid for and getting 50%.

ACV vs. RCV — the policy types

Every homeowners policy is one of two types when it comes to roof claims, and which one you have determines the math entirely.

  • RCV (Replacement Cost Value): pays the full cost to replace your roof with new materials of like kind and quality. This is the better policy
  • ACV (Actual Cash Value): pays the depreciated value of the roof. Older roofs get less, sometimes far less

How depreciation is calculated

Carriers depreciate based on age, condition, and useful life expectancy. The standard formula is straight-line depreciation across expected lifespan:

  • 20-year shingle, age 5 = 25% depreciated. ACV pays 75% of replacement cost
  • 20-year shingle, age 10 = 50% depreciated. ACV pays 50%
  • 20-year shingle, age 15 = 75% depreciated. ACV pays 25%
  • 20-year shingle, age 20 = 100% depreciated. ACV pays 0% (just the deductible-free portion of accessories)

Recoverable depreciation (RCV's superpower)

On an RCV policy, the carrier still calculates the depreciated value (ACV portion), but they also withhold the depreciation amount as 'recoverable depreciation' — payable to you AFTER you complete the repair and submit proof. The flow:

  • Step 1: Carrier issues first check for ACV portion (depreciated value minus deductible)
  • Step 2: You complete the roof replacement and pay your contractor
  • Step 3: You submit final invoice + photos to the carrier
  • Step 4: Carrier issues second check for the recoverable depreciation
  • Result: you recover the full RCV minus your deductible

How to find out which policy you have

Pull your declarations page (the summary at the front of your policy). Look for terms like 'Replacement Cost Coverage,' 'RCV,' or 'Replacement Cost Endorsement' under your dwelling coverage. If you only see 'Actual Cash Value' or 'ACV,' you're on the cheaper coverage. If unclear, call your agent and ask: 'Is my roof covered at RCV or ACV?' Get the answer in writing.

Why ACV policies trap homeowners with old roofs

ACV policies often have premiums 15-30% lower than RCV — appealing in the short term. But on a 15-year-old roof, you'll get half the replacement cost. On a 20-year-old roof, you'll get nothing for the shingles themselves (only labor, dump fees, and accessories). At that point, a 'covered loss' becomes a $15,000 out-of-pocket bill. If your roof is over 8 years old and you're on an ACV policy, the math almost always favors switching to RCV before your next claim.

Code upgrade coverage — separate but related

When local building codes change (e.g., requiring ice and water shield, drip edge, or improved ventilation), the cost to bring your replacement up to current code is often EXCLUDED from base coverage. You need a 'Building Ordinance and Law' endorsement (sometimes called Coverage D or Code Upgrade Coverage). Without it, the carrier pays to replace your old roof with old-code materials only — and you pay the difference for code-required upgrades. Get this endorsement; it's typically $20-50/year.

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FAQ Common questions

Frequently asked.

How do I recover my recoverable depreciation?
Submit the final invoice from your contractor, along with photos of the completed work, to the carrier. Their adjuster will verify and issue a second check for the held-back depreciation amount. Most carriers require this within 6-12 months of the original ACV payment, so don't delay the build.
What's a 'matching' clause and why does it matter?
Matching coverage requires the carrier to pay for replacement of undamaged areas if matching materials aren't available. For example, if hail damaged the south slope but your shingle line is discontinued, matching coverage pays for replacing all four slopes so they look uniform. Without matching coverage, you might end up with a multi-color patchwork. Worth confirming in your policy.
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