Home insurance in Wisconsin starts with your policy when ice, snow, and a long freeze do the damage. Water from an ice dam is not the same claim as a pipe that let go in a cold house. Your deductible is the figure on your page, not a story from a lake neighbor. Outbuildings collapse under snow on a different line from the house. Read the page before you describe the stain.
Ask how your policy treats ice-dam water. Some wordings argue maintenance, and some treat a sudden opening as a covered loss. You want the wording you actually bought, not a guess. Snow load on a barn or a boathouse belongs on the other-structures line if you have one. A tree on the roof may be wind or weight, and the deductible follows that wording. Say what fell and what it hit.
Freeze claims ask whether heat was maintained, so a closed cottage is not an occupied house. Say which one you have. Older masonry and timber frames should be held against a rebuild figure, not against what you paid. Belongings in a finished basement are still belongings. Loss of use matters only if a covered loss makes the place unfit in weather you cannot simply air out.
Photograph the ice at the eave, the ceiling stain, and the room below before anyone chips the dam. Keep those pictures with the claim. If a pole barn failed and the house did not, open the claim on the right structure. Wind off the Great Lakes and heavy snow can be two notes. Mixing them muddies the deductible. Do not let a neighbor's settlement tell you what your page says.
Have the town, the deductible, and any claim already open. Say ice dam, freeze, snow load, or wind in the first breath. Name a cottage if the heat was never on. Wisconsin will add another storm before the paperwork gets easier. Call the number on this page.