My Roof Is Bubbling or Blistering After the Storm. Is It Damaged?

What you are actually seeing

Not every bubble means the same thing.

The word "bubble" gets used for three completely different things on a roof, and they do not carry the same weight. One is a surface blemish that has been there for years and the storm just drew your eye to it. One is the telltale sign that wind broke your shingles loose and the roof is no longer rated to survive the next gust. One is a true failure where water is trapped where it should never be. Sorting out which one you are looking at is the whole game, because the cheap one needs nothing and the dangerous ones need attention before the next rain band rolls through.

Start with cosmetic asphalt blistering. Asphalt shingles can form small raised pimples or blisters on the surface when gas or moisture trapped inside the shingle during manufacturing expands in the Florida heat. The blister pushes up, and sometimes its cap pops off and takes a patch of granules with it, leaving a tiny pock mark. This kind of blistering is mostly a looks issue, it develops slowly over years of sun, and a hurricane does not create it overnight. If the bumps are small, scattered, and you suspect they predate the storm, that is the likely answer. It is worth noting on a roof report, but it is not an emergency.

Now the one that matters. When hurricane-force wind hits a shingle roof, it does not always rip shingles off. Often it does something quieter and more dangerous: it lifts the shingle just enough to break the adhesive seal strip that bonds each shingle to the one below it. That broken seal leaves the shingle loose at the bottom edge, which is exactly why you now see rippling, waviness, or shingles that look raised or curled in rows. The roof can look almost normal, yet every one of those unsealed shingles has lost its wind rating. A shingle that was rated to take 130 mph wind when it was sealed down is, once that bond is broken, just a loose flap waiting for the next storm to peel it off. This is hidden storm damage in the truest sense: the roof looks fine, and it is not.

The third kind shows up from below. When wind lifts shingles and breaks the seal, wind-driven rain gets forced sideways and upward under those raised edges and soaks into the underlayment and the wood deck. Saturated decking and trapped moisture can then push the roof surface up from underneath, so the bubbling you see is actually water that got in during the storm and has nowhere to go. On a flat or low-slope roof the same thing reads as a soft, raised blister in the membrane. That is no longer a cosmetic question. That is water in your roof assembly, and it does not dry out on its own.

What this means for your claim

Document it now, because Florida gives you one year.

Hidden wind damage and your insurance deadline are on a collision course. Under Florida Statute 627.70132, you have one year from the date of loss to file a new or reopened windstorm or hurricane claim, and 18 months for a supplemental claim. Not two years, not three. One. That sounds like plenty of time until you remember that broken seals do not announce themselves. The roof looks fine, you forget about it, and then a storm next season peels off the shingles that were already unsealed, except now you are outside the window for the storm that actually caused the damage.

This is why documenting the bubbling and rippling right after the storm matters even if nothing is leaking. A drone survey and a written photo report taken now, with the date tied to the named storm, is the evidence that protects the claim. If we lift test tabs and find broken seals across a slope, that is a wind loss whether or not water has come through yet. Wait, and you lose both the proof that the storm caused it and, eventually, the legal right to file at all. To be clear about what we are: Coastline documents the damage and works with your adjuster, but we are not a public adjuster and we do not negotiate your claim for a fee. For the full process, see our Florida roof insurance claims guide.

If you can already see exposed underlayment, missing tabs, or shingles that have flipped over, you are past the subtle stage and into active damage. Read what to do when shingles are missing after a storm for the urgent steps, and if the deck itself feels soft or looks stained, our guide on roof deck damage covers what trapped water does to the wood underneath.

What to do about it

A free drone inspection settles which bubble you have.

You do not need to climb up and risk your neck on a storm-loosened roof, and you do not need to guess. Coastline does a free post-storm inspection with a drone flyover and a written photo report. We fly the slopes for the close-up images, lift test tabs in several spots to check seal integrity by hand, look for the wavy rippled rows that signal broken bonds, and check whether the underlayment and deck took on water. On a flat roof we read the membrane for trapped-moisture blisters versus ponding. You get the photos and a straight answer: cosmetic and leave it alone, broken seals that need a repair, or saturated deck and membrane failure that need to be opened up and dried out or replaced.

If the inspection finds active or worsening damage and rain is in the forecast, we can put a same-day emergency tarp over the area to stop more water from getting under those loose shingles. From there we handle the targeted repair or, where the wind unsealed a large share of the roof, a full replacement documented for your claim. Ten years and 2,000-plus roofs on the Gulf Coast, including the Hurricane Ian and Hurricane Milton seasons, means we know exactly what these storms do to a shingle bond. The full storm process lives on our storm damage repair page, and you can book the free look on our roof inspection page.