Document the concealed condition
Record where damaged decking was found after tear-off and attach dated photos. Explain why it could not reasonably be confirmed during the original estimate.
Field guide
Change Order for Roofing
Create a roofing change order for hidden decking, sheathing, or tear-off discoveries.
Roofing changes are often caused by damage that is not visible until tear-off. Use a change order to document the hidden condition, the replacement area, and the approved added cost.
Open prefilled generatorUse a measurable replacement basis
State square footage or sheet count, material thickness, unit price, fasteners, disposal, and any code-required work so the added total can be checked.
Set a field approval point
Give the owner a not-to-exceed amount or require approval after measurement. Do not cover the condition until the scope and price are documented.
CO-001
Completed roofing change order example
Example- Condition found
- Rot and delamination discovered along the rear eave after shingles and underlayment were removed.
- Changed scope
- Remove and replace 12 sheets of 1/2-inch roof decking; install new clips, fasteners, and underlayment.
- Unit basis
- $118 per installed sheet, including labor and disposal; maximum 12 sheets without another approval.
- Added cost
- Not-to-exceed total of $1,416.
- Schedule
- One calendar day added, weather permitting.
- Approval
- Owner approves photo set RF-07 and replacement before dry-in continues.
What this example covers
Hidden decking or sheathing condition
Replacement area and unit basis
Photo or field approval reference
Schedule impact from extra work
More field paperwork
Related contractor guides
Important note
This is practical paperwork guidance, not legal advice. Review important construction documents with qualified counsel before use.