a device for protecting a gutter having a rear wall , front wall and a bottom wall , the walls defining a trough there between , the device comprising a guard member having generally planar central portion with one side thereof having an inverted u - shaped configuration designed to fit over an upper marginal edge of the rear wall of the gutter while at the other side , there is provided an overflow wall . the guard and gutter are attached directly to a supporting structure by means of screws or other mechanical fastening devices .