Gutters that attach to the fascia boards using gutter spikes, brackets or ferrules should work fine with a metal roof. Owners should avoid systems that attach to the roofing itself using straps. If uncertain about a particular style of gutter system, owners should contact the roofing manufacturer.
When mounting gutters for a metal roof, the installer should keep the gutter as close to the roofline as possible. Gutters should maintain a positive slope so water drains toward the downspout. Owners should clean gutters at least once every year to remove any leaves or other debris that collect in them. They should check downspouts and ensure the system directs water away from the foundation.