What size hail damages an asphalt shingle roof in Minnesota?
Short answer: In Minnesota, one inch diameter hail (quarter-sized hail) is the most useful “take it seriously” threshold for hail damage to an asphalt shingle roof. Damage can start smaller on older or brittle shingles, but functional hail damage is more common at 1.25 to 1.5 inches, especially on standard architectural shingles. After any storm…
