June 16, 2026

To install gutters on a metal roof, fasten the gutter hangers to the fascia board behind the roof edge, not through the metal roof panels. Then inspect the fascia, attach hidden hangers every 18–24 inches, set a quarter-inch slope per 10 feet, use 6-inch seamless aluminum gutters, add 3×4-inch downspouts, and test the water flow. […]