Interstates, river valley air and winter use
Interstate 494, Interstate 35W, Highway 100 and Highway 77 pass through or near the city, and many residents commute in cold, dark hours. Doors are used before sunrise and after dark, often in the coldest part of the day.
Parts of the city sit in the Minnesota River valley, where cold air and damp conditions can linger. Condensation can freeze on tracks, rollers and the top seal, and a stiff, frosty door puts extra load on springs and openers. A little lubricant on rollers and hinges, suited to cold weather, often helps, while the springs themselves should be left to a technician.

