Drip edge on a roof supplement, and why "it wasn't there before" is not a denial
Drip edge is one of the most commonly supplemented line items on an asphalt shingle roof, and one of the most commonly denied. The denial almost always arrives in the same shape: the roof did not have drip edge before the loss, so we are not paying to add it now.
That sentence sounds like a coverage position. It is not. It is a statement about the old roof, and the old roof is not what is being installed.
What the code section actually says
The requirement lives at IRC R905.2.8.5, in the section on asphalt shingle flashing. In plain terms it requires drip edge at eaves and rakes on asphalt shingle roofs, with adjacent segments overlapped, and fastened along the top flange at regular intervals.
Two details in that sentence do a lot of work on a supplement, and both get left out of the estimates we see:
- Eaves and rakes. A carrier estimate that carries drip edge only at the eaves has covered part of the requirement. The rake lengths are a separate quantity and they are on the measurement report.
- It is a flashing requirement, not an accessory. It sits in the flashing subsection alongside valley and sidewall detail, not in a list of optional upgrades. That matters when someone characterises it as a betterment.
Why "it wasn't there before" does not answer it
Building code applies to the work being permitted and performed, not to the assembly that was torn off. When a roof covering is replaced, the new covering is installed under the code edition the jurisdiction has adopted at the time the permit is issued. Nothing in that framework grandfathers an absence.
This is worth being precise about, because the precision is what makes the argument survive a second read at a desk:
The requirement attaches to the completed installation, under the code edition in force when the permit is issued. That the previous roof lacked drip edge does not exempt the new one — it only explains why the line item was not on the original scope.
Notice what that does not claim. It does not claim the policy covers code upgrades — that is a separate question, and it is answered by the policy, not by the building code. If the file needs ordinance-and-law coverage to pay for it, that is a different line of argument and it belongs in a different paragraph. Mixing the two is the fastest way to lose both.
The part most supplements get wrong
The IRC is a model code. It has force in a jurisdiction only once that jurisdiction adopts an edition of it, and adoption is not uniform — not between states, and in Florida and Texas, not even between counties within a state.
So "IRC R905.2.8.5 requires drip edge" is, on its own, an incomplete statement. The complete one names the jurisdiction and the adopted edition:
IRC R905.2.8.5 requires drip edge at eaves and rakes on asphalt shingle roofs. [Jurisdiction] has adopted the [year] edition of the IRC. Drip edge: [quantity] LF.
An adjuster who wants to reject a code argument does not need to argue about roofing. They only need to point out that you have not established the code applies here. Naming the adopting jurisdiction and the adopted year closes that door before it opens.
What to photograph
The strongest version of this item is not the code citation. It is the code citation with a photograph attached to it. Useful frames:
- The eave edge before tear-off, close enough to show whether edge metal is present under the shingle course.
- The rake edge, same thing — this is the one that goes missing.
- A frame during tear-off showing the deck edge with the old covering removed.
The first two are unrepeatable. Once the roof is off, no photograph will ever show what the eave looked like before, and an item that cannot be evidenced is an item that will be argued about. If the tear-off has not started, take them now.
One thing we deliberately do not print
You will find plenty of write-ups that hand you an estimating code — a category and selector to type straight into an estimating package — for drip edge. We do not print one, and the reason is worth stating plainly.
We went looking for the source of the selector that gets passed around for this item and could not establish one. It does not appear in the reference documents or the sample carrier estimates we hold, and the one carrier guideline that discusses drip edge at length quotes the IRC section without ever printing a selector for it. A second, different selector is also in circulation for the same item, so even the form of it is contested.
A wrong selector on a supplement is not a small error. It is handed to someone whose job includes finding reasons to say no, and it invites them to reject the item on a technicality that has nothing to do with whether the roof needs drip edge. So we leave the field blank and let the item stand on the physical fact and the code section, both of which we can support.
The short version
- Drip edge is required at eaves and rakes under IRC R905.2.8.5 — check the rake quantity, it is the one that gets dropped.
- The absence of drip edge on the old roof is not an exemption for the new one.
- Name the jurisdiction and the adopted code year. Without them the argument is incomplete and easy to refuse.
- Keep the code argument and the ordinance-and-law coverage argument in separate paragraphs.
- Photograph the eave and rake edges before tear-off. You do not get a second chance at those frames.
This is written for contractors preparing their own supplements. It is not legal advice and it is not a reading of anyone's policy. Verify the adopted code edition with the authority having jurisdiction for the property.