Drainage that survives a season of ice.

Sizing follows the roof area draining into each run, along with the pitch of that roof. Steep roofs deliver water faster, so they need more downspout capacity for the same square footage. Undersized downspouts are the most common reason gutters overflow in heavy rain even when they are clean and correctly sloped.

Enough to keep water moving to the outlet without being visibly out of level, generally about a quarter inch of fall for every ten feet of run. Too little and water stands in the trough, which freezes and adds weight; too much and the gutter looks crooked against the fascia line.

No. Ice dams are caused by heat escaping into the attic, and they form whether or not gutters are present. Gutters do get damaged by the ice that results, which is why hanger spacing and mounting strength matter here. Solving the dam itself is an insulation and ventilation project.

On lots with mature tree cover, guards meaningfully reduce how often gutters need clearing, which matters most around Cloquet and Esko. No guard eliminates maintenance, and fine debris like pine needles and shingle granules still gets through most designs, so plan on periodic checks regardless.

Far enough from the foundation that the water does not simply run back toward it, which usually means an extension or a buried drain line carrying discharge past the backfill zone. A correctly sized gutter that dumps at the base of the wall has just moved the problem a few feet.