A gutter debris barrier system for preventing debris from entering a gutter includes a frame that is attached to a fascia of a building and a filter screen. The frame may include a floor with slots punched therein, with ribs on either side of the slots that form channels. The channels may be tapered to improve the speed and efficiency of heat transfer, and also to funnel water down into the gutter. The ribs may have planar upper surfaces or tips lying in a common horizontal plane and supporting a flat filter screen.