Winter is on its way for a big part of the country. From the Colorado Front Range and the mountains of North Carolina and Tennessee to New Jersey and New England, heavy snow and ice can put a lot of weight on a roof in a short time. Most roofs handle a normal winter without trouble. But when snow piles up, drifts, or soaks up rain, the load can grow faster than many people expect, and the damage it leaves behind isn’t always obvious.
This post covers why snow loads become a problem, the warning signs to watch for, how to stay safe, and what to keep in mind if you need to file a claim for winter roof damage.
Why snow and ice can overload a roof
The Federal Emergency Management Agency (FEMA) published a Snow Load Safety Guide (FEMA P-957) that explains the main ways snow can overstress a building. A few of the causes it lists:
- Drifting and sliding snow. When snow collects at different depths on different parts of a roof, it creates heavy, concentrated loads. Snow sliding off an upper roof onto a lower one can add even more weight in one spot.
- Rain on snow. Heavy rain falling on existing snow can saturate it and make it much heavier.
- Melting and refreezing. If gutters and drains are blocked, meltwater can refreeze into ice dams at the eaves. On flat or low-slope roofs, meltwater can pool in low areas.
- Roof shape. Simple, steep roofs shed snow most easily. Flat roofs with parapets, stepped roofs, and roofs with equipment or chimneys tend to collect drifts unevenly.
That last point matters for business owners. Warehouses, shopping centers, restaurants and other buildings with flat or low-slope roofs and rooftop equipment can be especially exposed during a heavy snow event.
Warning signs of a roof under stress
According to FEMA’s guide, overstressed roofs often show signs before they fail. Watch for:
- Sagging ceiling tiles or boards, or ceiling boards falling out of the grid
- Sagging sprinkler lines, or sprinkler heads dropping below a suspended ceiling
- Popping, cracking or creaking noises
- Sagging roof decking or sheathing, or bowing trusses
- Doors or windows that suddenly won’t open or close
- Cracked or split wood framing, or new cracks in walls or masonry
- Severe roof leaks, or water pooling on a low-slope roof
FEMA’s advice is clear: if you see any of these signs, get everyone out of the building promptly and contact your local building authority or a qualified design professional, such as a structural engineer, for an inspection. Your safety comes before your property and before your claim.
Staying safe when clearing snow
It can be tempting to climb up and shovel, but that carries real risk. The U.S. Department of Energy’s Building America Solution Center notes that clearing snow comes with its own dangers, including falls, and that your own weight can make things worse on a roof that’s already stressed. If a roof is sagging or creaking, get down and get out.
A few general precautions:
- Use a roof rake from the ground for low roofs when you can.
- Consider hiring a licensed, insured snow removal contractor.
- Keep gutters and downspouts clear before winter so meltwater has somewhere to go.
- Keep a record of any snow removal you pay for. Receipts and photos can help show you took reasonable steps to protect your property.
Winter roof damage you might not see right away
Not every snow event ends with a sagging ceiling. Some damage is quieter and shows up weeks later:
- Water stains on ceilings or upper walls near exterior walls, which can point to ice dams
- Damp or matted attic insulation, or frost and moisture on the underside of the roof deck
- Gutters pulled away from the fascia by ice
- Cracked, lifted or missing shingles after the snow melts
- Damaged flashing around chimneys, vents and skylights
After a big storm or a long cold stretch, take a careful look at your attic and ceilings, and check the roof from the ground once the snow clears.
How winter roof claims often work
Every policy is different, so the first step is always to read yours or ask your insurer which coverages apply. In general terms, many homeowners and commercial property policies address weight of ice, snow or sleet and sudden water damage, while damage blamed on wear and tear, poor maintenance or long-term leaks may be treated differently. Exclusions, deductibles and limits vary by carrier, state and endorsement.
If you think winter weather damaged your property:
- Put safety first. Leave the building if you see warning signs, and call professionals.
- Prevent more damage when it’s safe. Tarp leaks, move belongings away from water, and keep receipts for any emergency work.
- Document everything. Take wide photos and close-ups of the roof, attic, ceilings and any interior damage, plus videos with dates. Note when the storm happened and how much snow fell.
- Report the damage promptly. Policies have notice requirements and deadlines, and many states set time limits on filing claims. Waiting can make a claim harder.
- Keep a file. Save your policy, every letter and email from your insurer, estimates and receipts in one place.
Get a free policy review before the snow flies
The best time to understand your coverage is before you need it. A licensed public adjuster represents you, the policyholder, not the insurance company. ClaimPros helps homeowners and business owners in many states review their policies, document damage and work through the claims process.
Call ClaimPros at (888) 592-5552 for a free policy review. We’ll walk through what your policy says about winter weather, roof damage and deductibles, so you know where you stand before the next storm.
Sources: FEMA P-957, Snow Load Safety Guide (https://www.fema.gov/sites/default/files/documents/fema957_snowload_guide.pdf); U.S. Department of Energy Building America Solution Center, “Managing Snow Loads on Roofs and Decks” (https://basc.pnnl.gov/resource-guides/managing-snow-loads-roofs-and-decks).
Collin Johnston, Lic. PA P091208