Supplements: Why the First Estimate Is Almost Never the Final Number
An adjuster measures from the ground and the eaves. A crew finds out what is actually there on the morning of the tear-off. The gap between those two pictures is what a supplement is for.
Estimating From Outside a Closed System
A roof estimate before tear-off is an educated projection. The adjuster cannot see the decking, cannot count the layers with certainty, and cannot know what the flashing detail at the chimney looks like under the shingles.
So the first approved estimate is a starting scope. When reality differs, the mechanism for correcting it is a supplement. It is a routine part of restoration work, not a sign that something has gone wrong.
What Actually Generates a Supplement
These are the common ones, roughly in order of frequency.
- Decking. Rot, delamination, or spaced board decking discovered at tear-off.
- Layer count. A second or third layer nobody knew about changes tear-off labour and disposal volume.
- Flashing. Chimney, sidewall, step, and counter flashing that cannot be reused, which is common and frequently under-scoped.
- Ventilation. Intake and exhaust corrections that were not in the original scope.
- Collateral damage. Damage caused by performing the repair itself.
- Code items. Ice barrier, drip edge, and fastening requirements that apply to the replacement.
- Missed elevations or components. Detached structures, soft metals, and slopes not included in the original inspection.
- Pricing updates. Where materials have moved between the estimate date and the build date.
Where Ohio's rule helps
Ohio Administrative Code 3901-1-54 provides that on replacement cost settlements, when a loss requires replacement of an item or part, any consequential physical damage incurred in making that repair or replacement — not otherwise excluded — shall be included in the loss. That is direct support for the collateral damage category, which is one of the more frequently contested.
What Makes a Supplement Get Approved
Photographs taken before the condition is covered up, with something in frame for scale and a visible location reference. A photograph of rotted decking that could be anyone's decking is worth very little. The same photograph with the chimney and the ridge visible in the background is worth a great deal.
Beyond that: line items written in the carrier's own estimating vocabulary and sequence, quantities that reconcile to the roof measurements already in the file, code citations for code items, and a short written explanation of why each item was not visible at the original inspection. That last one prevents most of the back-and-forth.
Sequencing and Deadlines
Submit supplements as conditions are discovered rather than saving them for the end. A carrier reviewing one supplement mid-project handles it as a normal revision; a carrier receiving a large supplement after completion is being asked to approve work it never had the chance to inspect.
Once a supplement is approved and the amount is not in dispute, Ohio's rule requires payment within ten days of acceptance. And where the carrier needs to investigate further, it owes you an explanation within twenty-one days of a properly executed proof of loss, with written status updates at least every forty-five days after that.
We handle supplements as part of the job rather than handing you a stack of paperwork and wishing you luck. If you have a project where the scope has already changed and nobody has told the carrier, call (877) 521-7171.
Not Sure Where Your Claim Stands?
We inspect the roof, document what is actually there, and tell you honestly whether you have a claim worth filing.
Common Questions
A request to revise the approved scope and amount of a claim based on conditions that were not visible or not accounted for in the original estimate.
Yes. Roof scopes are estimated before tear-off, so revisions once the real conditions are exposed are a routine part of restoration work.
Usually your contractor, since it is the contractor who discovers the condition and can document it. The carrier's decision still goes to you as the policyholder.
Well-documented supplements are approved regularly. What gets declined tends to be items submitted without dated photographs, without a reason they were not visible earlier, or after the work was already covered up.
Ohio's claims rule provides that consequential physical damage incurred in making a covered repair or replacement, not otherwise excluded, is included in the loss on replacement cost settlements.
Related Pages
Book Your Free Inspection
No cost, no obligation, no pressure. Or call (877) 521-7171 — we answer.
No comment yet, add your voice below!