Gutters are a drainage system, not a trim detail, and their job is to manage a genuinely large volume of water every time it rains. A single inch of rain falling on an average roof can produce hundreds of gallons of runoff, and every gallon of that water has to go somewhere specific rather than sheeting off the roof edge at random. When gutters are undersized, poorly pitched, or separating from the fascia, that water finds its own path instead, which is almost always straight down against the foundation or across a walkway. In Minnesota specifically, gutters also interact directly with ice damming, since standing water or ice trapped in a gutter at the roofline contributes to the same freeze and backup problem that a poorly ventilated attic causes. That makes gutters part of the same water management system as the roof itself rather than a separate accessory bolted on afterward. A gutter system that was sized correctly and installed with proper pitch when the house was built can still fail years later simply from the cumulative weight of ice and debris working the fasteners loose from the fascia. Recognizing gutters as functional infrastructure, not just a finishing detail, is what makes the difference between a system that actually protects the house and one that just looks the part.