There is no single answer, because the answer depends on the paper your job is written on. On a job paid out of pocket, the homeowner pays for decking work as agreed in the contract. Where a policy is involved, whether any decking work is covered depends on what that policy says, and policies differ, so read yours and ask your agent.
Why is decking a question at all?
The deck is the wood layer under your shingles, and nobody can judge it from the ground. Its condition is found at tear-off, once the old roof is off and a crew can walk it and look at every board or sheet. That is why decking is one of the most common items that moves between "estimate" and "final scope". If you want the basics first, start with what a redeck is.
Our owner describes what crews often see on older Oklahoma homes: old and new decking side by side, with hundreds of nail holes showing once the roof comes off. Nobody sees that from the driveway.
How do estimates usually treat decking?
Because the deck is unknown until tear-off, estimates generally handle it in one of a few ways. Ask which one your roofer uses.
| Estimate approach | What it means in plain terms | What to ask |
|---|---|---|
| Decking line item, priced per sheet or section | A unit rate is written down, and the final count is known after tear-off | What is the unit, and who confirms the count? |
| Allowance | A set amount is held for decking, adjusted up or down | What happens if the allowance is exceeded or not used? |
| Decking excluded | Nothing is included; any decking is a separate change | How is a change approved, and in what form? |
| Full redeck included | The whole deck is replaced or overlaid as part of the base scope | Is this needed, or is it a choice? |
None of these is automatically right. What matters is that it is written down before work starts, so nobody is surprised halfway through.
What about when a policy is involved?
When a roof is being replaced under an insurance policy, the original paperwork is usually written before anyone can see the deck. When a crew finds decking that needs work, the finding is typically documented with photos and sent back through whatever process the paperwork calls for. In roofing language, that kind of added item is often called a supplement. We explain the term in what is a roof supplement.
What we cannot tell you is how any particular policy treats decking. Some policies speak to the cause of damage. Others have wording about code compliance, which is its own topic, covered in what is Ordinance or Law coverage. Whether a given decking item is covered, partly covered or not covered comes down to the policy language and the facts of your loss. We do not predict that, and nothing on this page is a promise about coverage.
What should I have in writing before tear-off?
- How decking is priced (per sheet, per section, allowance, or excluded).
- The method: replace damaged sections, overlay the deck, or full redeck. Our practice on older spaced-board decks is often an OSB overlay, though that is our practice, not a rule for every home. See OSB vs plywood.
- How changes are approved, and whether it is in writing.
- Whether you will see photos of what was found.
- Who is responsible for the cost of each case: found damage that is repaired, versus decking that is replaced by choice.
If you want the larger picture on why scope moves, our guide why a roof estimate changes walks through it.
Frequently asked questions
Does the homeowner always pay for decking? No. It depends on the contract and on the policy, if there is one. On a self-paid job, the contract controls. Where a policy is involved, read it and ask your agent.
Can I find out the deck condition before the job? Not reliably. From the ground you can only notice indirect signs, such as sagging lines or ceiling stains. Attic observation can add clues, but the deck is judged at tear-off. Please do not climb on the roof to check.
Why do some estimates say nothing about decking? Some roofers leave it out and treat it as a change item later. That is why you should ask how it is handled before you sign.
Should I expect the price to change after tear-off? It can, if the deck needs work the estimate did not include. A clear written method for handling that helps everyone.
Does a decking finding mean the first estimate was wrong? Usually not. The deck was simply not visible yet.
Is decking damage from hail? Hail typically hits shingles first, and decking problems often come from age, moisture or old fasteners. The cause of loss matters for any policy question, and that is a conversation for your agent.
Talk to us about your roof
Total Roof Protection OKC can look at your roof and walk you through what we find and how we would handle decking in writing. Call 405-415-5841 to set up an inspection. An inspection describes the roof; it does not decide what a policy will do.