Roof Doctor | Roofing Services in North Mankato, MN 56003

In our climate, warm, moist air from your attic can melt snow on the roof. This water then refreezes at the colder eaves, creating ice dams and internal frost. Proper ventilation allows this warm air to escape, maintaining a consistent roof temperature to prevent melting and refreezing cycles that cause damage.

Minnesota's freeze-thaw cycles and exposure to moisture accelerate corrosion on metal flashings around chimneys, vents, and valleys. Roof Doctor addresses this by inspecting for rust and weakness, removing compromised sections, and installing new, corrosion-resistant flashing sealed with durable, waterproof materials to prevent leaks.

Watch for interior signs like moisture stains on ceilings or walls, especially after snow melts. Externally, look for excessive icicles along the eaves, rust streaks on flashing, or cracked/missing sealant. An annual professional inspection before winter is the best way to catch and fix these local issues early.