Short answer: Water that backs up behind an ice dam and leaks into your ceilings and walls is generally covered by a homeowners policy, but many policies won't pay to remove the ice dam itself, according to the Connecticut Insurance Department. A roof that collapses suddenly under the weight of snow or ice is normally covered too, unless the insurer can tie the failure to age, decay or damage that was already there. Flooding from melting snow or ice jams is a flood loss, which needs a separate flood policy. FEMA guidance, as summarized by the U.S. Department of Energy, puts a foot of heavy wet snow at about 21 pounds per square foot, so watch for sagging, creaking and sticking doors after big storms, and get out if you see them.
This guide is for homeowners, condo owners and renters in states that get real winter: the Northeast, Midwest, Plains, Mountain West, Alaska and the higher-elevation South and West. It's general information. Your policy's covered perils, exclusions and deductibles control the answer for your home.
How an ice dam forms, and why it leaks
The Department of Energy's Building America Solution Center explains the mechanism. When heat from the house leaks into the attic, the underside of the roof warms above freezing and snow on the roof melts even on a cold day. The meltwater runs down to the colder eave and refreezes, building a ridge of ice that blocks drainage. Water then pools behind the ridge and can work under the shingles into the attic, walls and ceilings. Icicles along the eaves are a common sign (DOE Building America Solution Center, Managing Snow Loads on Roofs and Decks).
The long-term fixes are on the building side: air-sealing and insulating the attic floor, and good ventilation under the roof deck so the roof stays cold.
What a homeowners policy usually does with winter roof damage
| Winter problem | Usual treatment | Watch out for |
|---|---|---|
| Ice dam water leaking into ceilings, walls or insulation | Generally covered, subject to the deductible | Many policies don't pay to remove the ice dam |
| Roof or structure collapse from the weight of snow, ice or sleet | Often covered as a sudden, accidental loss | Denials tied to age, rot or pre-existing damage; some nonstandard policies don't list this peril |
| Roof leak discovered after heavy snow | Depends on the cause | Wear and tear or poor maintenance is excluded; snow that just exposed an old problem may not be covered |
| Tree or limb brought down by ice onto the house, garage or fence | Generally covered | Removing a tree that fell in the yard without hitting anything usually isn't |
| Ice-laden tree falls on your car | Auto comprehensive, not homeowners | Liability-only auto policies won't pay |
| Snowmelt or ice-jam flooding into the house | Not covered by homeowners | Needs flood insurance, with a waiting period |
| You're hurt shoveling your own roof or walk | Not covered by homeowners | Health insurance is the usual source |
Based on the Connecticut Insurance Department's winter claim tips and the Oklahoma Insurance Department's winter and ice storm recovery guide. Policies differ; check your own.
A few of those rows deserve more detail.
Weight of ice and snow. The Oklahoma Insurance Department says a roof collapse caused by the weight of ice or snow is often covered under a standard home policy, but that some nonstandard policies don't cover that risk. Check the covered-perils section of your policy, especially if it's a named-peril or limited form, and ask about an upgrade if the peril isn't listed.
"The snow uncovered it." If heavy snow reveals a roof that was already worn out, Oklahoma's regulator notes that the leak may not be covered, because homeowners policies cover sudden and accidental damage, not deterioration. Fall roof repairs are cheaper than a winter denial. See does homeowners insurance cover roof leaks?
Snowmelt and ice-jam flooding. The National Weather Service describes how a thaw can break river ice into chunks that jam at bridges and bends and act like a dam, causing severe flooding (NWS, Ice Storms). Most home policies don't cover flooding (Texas Department of Insurance, Home insurance guide). A National Flood Insurance Program policy generally has a 30-day wait before it takes effect, so buying one after the snowpack builds may be too late; see the NFIP 30-day waiting period.
Renters. Connecticut's regulator reminds tenants that the landlord's policy pays for winter damage to the building, not to the tenant's belongings. Your own renters insurance covers your things.
How heavy is the snow on your roof?
The DOE Building America Solution Center, citing FEMA's Snow Load Safety Guide (FEMA P-957), gives these rough weights:
| Material on the roof | Approximate weight |
|---|---|
| 1 foot of light, dry snow | about 3 pounds per square foot |
| 1 foot of heavy, wet snow | about 21 pounds per square foot |
| 1 inch of ice | about 5 pounds per square foot |
| 1 foot of ice | about 57 pounds per square foot |
The same page notes that melt-and-refreeze cycles, rain falling on existing snow and back-to-back storms all drive loads higher, and that drifting can pile snow deeper on one side of a roof or between gables. Snow sliding from an upper roof can also overload a lower one.
Warning signs of an overloaded roof
The Solution Center lists these signs of excessive snow load, from FEMA P-957:
- Sagging or bowed ceilings or truss bottom chords
- Creaking or cracking sounds from the roof or deck
- Doors or windows that suddenly stick or won't close
- New cracks in walls, ceilings, framing or masonry
If you see any of them, the guidance is to leave the building and have a qualified professional, such as a structural engineer, inspect it. If you clear snow yourself, a roof rake from the ground is safer than climbing up. On the roof, use fall protection and a plastic shovel, and leave an inch or two of snow so you don't break shingles. If the roof sags or creaks while you're on it, get down right away.
Before the first big storm
- Fix the roof in the fall. Replace missing shingles and damaged flashing, and look for old water stains in the attic.
- Clean gutters and downspouts so meltwater has somewhere to go.
- Check attic insulation and air leaks around lights, vents and the attic hatch.
- Install and test smoke and carbon monoxide alarms with battery backups, as Ready.gov recommends before winter (Ready.gov, Winter Weather).
- Plan generator use. Ready.gov says to run generators outdoors, at least 20 feet from windows, doors and attached garages.
- Know your deductible, including any separate wind or hail deductible, and keep your insurer's claims number handy.
Frozen pipes are a separate winter risk with their own rules; see does homeowners insurance cover burst pipes?
If winter damages your home: a claim checklist
Drawn from the Connecticut and Oklahoma insurance departments' winter guidance:
- Report the claim quickly. Use your insurer's 24-hour claims line. After big storms, adjusters get busy.
- Photograph and video the damage before you clean up.
- Prevent further damage. Tarp holes, shut off water if pipes burst, and move belongings away from leaks. Save the receipts; Oklahoma's regulator notes your policy may cover these costs.
- Don't make permanent repairs or throw out damaged items until the insurer has inspected, unless it tells you otherwise.
- Keep a log of every call, email and name at the insurance company.
- Ask about additional living expenses if the home isn't livable. See additional living expenses (loss of use).
- Be careful with storm contractors. Oklahoma's regulator advises getting more than one bid, not paying up front, and avoiding anyone who offers to waive your deductible.
If a claim is delayed or denied, see home insurance claim and lawsuit deadlines by state and public adjuster rules by state.
Winter driving note
Ice and snow affect auto claims too. Oklahoma's insurance department says that if you lose control on snow or ice and hit a barrier, it's a collision claim and treated as at fault, not a no-fault weather event. A tree that falls on your parked car in an ice storm is an auto comprehensive claim. See also what happens when a tree falls.
Frequently asked questions
Does homeowners insurance cover ice dam damage?
Generally yes for the interior or exterior water damage an ice dam causes, subject to your deductible. Many policies don't pay to remove the ice dam itself, and damage tied to poor maintenance or an already-failing roof can be denied.
Is roof collapse from snow covered by homeowners insurance?
Often, yes. A sudden collapse from the weight of snow, ice or sleet is normally covered under standard homeowners policies, but some nonstandard policies don't include that peril, and losses blamed on age or pre-existing damage can be denied.
How much snow can a roof hold?
It depends on the design, age and condition of the roof and on the type of snow. FEMA figures cited by the Department of Energy put light dry snow at about 3 pounds per square foot per foot of depth and heavy wet snow at about 21, while an inch of ice adds about 5. Watch for sagging, creaking and sticking doors.
Does homeowners insurance cover flooding from melting snow?
No. Flooding from snowmelt or ice jams is excluded from standard homeowners policies. You need a flood insurance policy, and NFIP policies generally take 30 days to start.
Will my insurance pay to remove snow or ice from my roof?
Usually not as routine maintenance, and many policies exclude ice dam removal. Reasonable steps to prevent further damage after a covered loss may be reimbursed, so keep receipts and ask your insurer.
What should renters know about winter roof damage?
The landlord's insurance covers the building. Your belongings are covered only by your own renters insurance.
Alishahi Insurance · 439 N Canon Dr, Penthouse, Beverly Hills, CA 90210 · (877) 711-4545 · CA License #4348151. General information only. This isn't legal, tax or financial advice or a coverage determination. Coverage depends on policy language and underwriting, and rules vary by state.
Related guide: Storm contractor scams and temporary repairs after winter weather damage