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Roofs · From the Yard

Roof Snow & Ice Dams in Traverse City: Watch From the Ground

Snow sits on roofs here for a long time. At the airport there are about 98 days a year with at least an inch on the ground, and last winter there were 88 days with six inches or more. This page is about watching that load from the yard, knowing what you are looking at, and handing the roof to someone insured to work on it.

Traverse City Snow Plowing is a referral service. It does not clear roofs, plow drives or spread salt; any roof work is done by an independent roof-snow contractor under its own name and its own insurance, and nothing on this page is an instruction to go up there yourself.

Start With the Code Number

Sixty Pounds Is a Design Input, Not a Promise

Michigan’s Residential Code, as adopted in Mich. Admin. Code R 408.30515, sets the ground snow load for all of Grand Traverse and Leelanau counties at 60 pounds per square foot. Benzie and Kalkaska carry the same figure. It is the code writing the lake-effect climate into a table.

It is easy to misread. Sixty psf is a number an engineer or builder starts from when designing a new house. It is not a rating stamped on your roof. Roofs are built to their own design, age and repair history, and a great deal of the lake-home stock here began as seasonal cottages that were winterized later, often before the current table existed. A steep metal roof on a newer house and a low-pitched roof on an older cottage are not the same structure, and the code number says nothing about which one you have.

What It Weighs

Rules of Thumb for Roof Snow

These figures come from the Insurance Institute for Business & Home Safety, as published by the U.S. Department of Energy’s Building America program. They are approximations, but they are useful for understanding why a roof that looked fine in December can be in trouble in March.

Approximate roof snow weights (IBHS via DOE)
What is on the roofApproximate load
10–12″ of new snowabout 5 psf
3–5″ of old, packed snowabout 5 psf
1″ of iceabout the same as 1 ft of fresh snow
Where many roofs begin to show stressaround 20 psf

The pattern that matters is layering. Fresh snow is light. Snow that sits, settles, gets rained on and refreezes is not. After a winter like 2025–26, when the airport took about 145 inches by April 1, the load on a roof that never shed is mostly old pack and ice, and those weigh far more per inch than the snow that just fell.

Heavy icicles hanging from the eave of a snow-loaded standing-seam metal roof on a cedar-sided cottage, deep snow on the ground below
Ice Dams

A Warm Attic Under a Cold Eave

An ice dam starts inside the house. Heat escaping into the attic warms the roof deck above freezing, the snow on it melts, and the meltwater runs down to the eave, which hangs out past the heated walls and stays cold. There it freezes. The ridge of ice grows, later melt pools on the uphill side of it, and water that should have run off sits on the roof and works its way under the covering.

The University of Minnesota Extension calls air leakage into the attic “the major mode” of heat loss behind ice dams, and IBHS puts the lasting fix in the attic, not on the roof: ventilation, insulation and air sealing. Michigan State Police’s MIREADY program recommends at least R-30 attic insulation, with R-38 preferred in northern Michigan, along with clear gutters and a roof rake. Michigan’s insurance regulator, DIFS, lists ice dams, roof collapse and frozen pipes among the state’s most frequent winter claims.

What You Can See From the Yard

Warning Signs, Viewed From the Ground

Icicles at the eave

Heavy icicles along the eave, especially thick ones that keep growing, are the visible edge of an ice dam. They mean meltwater is reaching a cold edge and freezing there.

A ridge line that is not straight

Stand back and look along the ridge and the eaves. A dip, a sag or a roofline that is no longer straight is one of the signs Extension guidance lists for a roof under too much load.

Walls that bulge

Sidewalls pushed outward near the top are another sign on that list. They are easiest to see by sighting along the wall from a corner of the house.

Stains and ceiling damage

Water stains on a ceiling or an upper wall, or visible damage to ceilings or trusses, can mean an ice dam is leaking or the structure is working. If you see signs of damage, Extension guidance is not to enter the building while the snow is still on the roof, and to call professionals.

None of these requires a ladder. All of them can be seen, and photographed, from the driveway.

The Empty House

A Cold Cottage Dams Less and Loads Longer

This follows from the mechanism rather than from any count. A house kept at a low heat setting over the winter warms its roof less, so it tends to form fewer ice dams than an occupied one. But the snow on it also melts less, so the load sits and builds. And in an empty house, nobody walks under a sagging ceiling or notices a stain on the upstairs drywall.

That is the case for having someone look. Across the region, about a quarter of all housing is seasonal and roughly 8% of it is occupied in winter, and on Old Mission, where short-term rentals are banned, a second home can sit untouched from fall to spring. A plow operator is often the only person who sees the house after every storm. The vacant-property page covers how that visit can include the roof.

The Only Homeowner Tool

A Roof Rake, From the Ground

IBHS names a roof rake used from the ground as the safe option for a homeowner: a long-handled rake that pulls snow off the lower part of the roof while you stand in the yard. Even that carries cautions. The University of Minnesota notes that a rake may damage roofing materials, and IBHS warns to stay well clear of where power lines come into the house. Stay off the roof, and off a ladder at the eave. Extension guidance is blunt that anyone on a roof in winter, or working on one from below, risks injury.

Beyond a rake from the ground, roof snow is a contractor’s job. Leelanau County publishes its own list of local snow contractors, and five of the eleven on it advertise roof snow removal. Whoever you use, ask for a certificate of insurance that covers roof work specifically. Michigan has no state license for snow contractors, so insurance is what to check.

What a Plow Contract Can Add

Look, Photograph, Report, Refer

  1. A baseline in the fall. On the pre-season staking visit, a photo of each roof face from the ground, so later pictures have something to compare against.
  2. A roofline photo on every visit. Taken from the drive, timestamped, sent with the driveway photo.
  3. A report when something changes. New or thickening icicles, a dip in the ridge, a gutter pulling away, snow sliding off a metal roof onto a walk or the propane regulator.
  4. A referral, not a repair. The plow operator stays on the ground. If the roof needs work, the report goes to you, and the work goes to a roof-snow contractor with its own insurance.

Settle this when you arrange the season contract, alongside the trigger and the return pass for the berm. For how much snow a given part of the county normally sees, see where the snow falls.

Questions

Roofs, Asked Directly

Is my roof rated for 60 psf?
Not necessarily. Sixty pounds per square foot is the ground snow load the Michigan Residential Code assigns to Grand Traverse and Leelanau counties as a design input for new construction. It is not a statement of what any existing roof can carry, and many older cottages were built before the current table.
How heavy is the snow on a roof?
As a rule of thumb, 10 to 12 inches of new snow is about 5 pounds per square foot, and so is 3 to 5 inches of old packed snow. An inch of ice weighs about as much as a foot of fresh snow. Many roofs begin to show stress at around 20 pounds per square foot.
Should I shovel my own roof?
No. Stay off the roof and off a ladder at the eave. A roof rake used from the ground is the only homeowner tool that safety guidance supports, and anything more belongs to a roof-snow contractor that carries its own insurance.
What causes ice dams?
Heat escaping from the house warms the roof above freezing, snow melts, and the meltwater refreezes at the colder eave. Air leaking into the attic is the main driver. Michigan’s MIREADY program recommends at least R-30 attic insulation, with R-38 preferred in northern Michigan.
Can my plow contractor clear the roof?
A plow contract can include a photo of the roofline on each visit and a report when something looks wrong. Roof work itself should go to a roof-snow contractor with its own insurance.

Have Someone Looking at the Roofline All Winter

Arrange a plow contract that includes a roofline photo on every visit, and a referral when the roof needs more than watching.

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