How does wind lift a shingle that was nailed down?
Shingles are nailed through the overlap and bonded to the course below with a sealant strip along the tab. Wind pulling up on the tab works against that bond, and the bond is weakest where the shingle has been flexing through cold weather.
The sealant on an asphalt shingle is a thermally activated adhesive that bonds when the roof is warm enough for the strip to soften. A roof installed in mild weather and then caught by a long freeze may have strips that never fully bonded, and those tabs are the ones a nor'easter finds first.
Once one tab lifts, the wind has a foothold. The loose tab flutters and creases along the nail line, and each crease weakens the material further.
What does a technician check on a wind-damaged roof?
The technician checks whether each shingle still seals, whether it is creased or torn, and whether the underlayment and nails beneath are sound. The decking and the flashing at edges and penetrations are checked for the same damage.
Wind damage concentrates at the ridge, the rake edges, the corners and anywhere the roof projects above its surroundings. Those are the places to look first, and they are also where gaps are most visible from the ground.
The condition of the nails matters as much as the shingle. Nails that have backed out let neighbouring shingles lift, and nails driven too high in the nailing zone do little to hold the course.
Can a lifted shingle be resealed, or does it have to be replaced?
A shingle that lifts without tearing, creasing or losing its nail can usually be resealed. A shingle that is creased, cracked, torn or missing has to be replaced, because sealant cannot restore the material.
Resealing is a fair repair when the shingle is still flexible and the adhesive has simply let go. The test is whether the tab lies flat and stays flat once the wind passes.
A crease is a break in the mat that a sealant cannot close. A shingle with a visible fold keeps lifting along that line, so the repair is only as good as the piece that replaces it.
What moves the price of wind damage repair here?
The price depends on how many shingles are affected, how steep the slope is, whether the roof can be walked safely, and whether the damage reaches the underlayment, decking or flashing. The price is confirmed on site and explained and approved before any work starts.
Access is often the largest factor. A house with a steep front slope and a sheltered rear is a different job from a multi-floor building with a low-slope section and porches to work around.
The number of coverings already on the roof also matters. Shingles laid over an older layer do not always lie flat once the top layer is lifted, so the technician decides whether the damage is confined to the top layer or runs through the roof.
Is wind damage covered by a homeowner's policy?
Whether a claim pays depends on the policy, the insurer and the cause of the damage, not on the roofer. The record of what happened, when, and what was done about it is what an adjuster will ask for.
Storm damage is handled through homeowner's insurance, and the policy language decides what is covered, what is excluded and how a claim is adjusted. A roofing company cannot say whether a particular claim will pay, and this page does not either.
The state's Division of Insurance takes complaints about insurers in Massachusetts. A homeowner who believes a claim was handled unfairly can take it there, and the guide on storm damage claims on this site explains what to keep.