outer wall surface 21 the gable end overhang 10 and associated components 11 12 13 14 15 and 16 as well as trim members 31 and 32 are not part of this invention themselves but are included here to illustrate their relationship with the edge guard 110 that is the subject matter of this invention some gable roofs do not have a gable end overhang as exemplified in fig1 b or do not have one as shown nevertheless the spirit of the present invention holds wherever the herein described aerodynamic roof edge guard may be installed properly on the gable edge of a roof moreover although many of the examples in this application are illustrated for gable edges the present invention is applicable on other types of roof edges particularly for roof edges where there is no significant rainwater runoff examples of such roof edges include gable gambrel mono slope so called lean to and overhung flat roof edges for roof edges where there will be certain rainwater runoff such as the eaves of various roof types including gable and hip roofs this invention is also applicable if no water draining devices such as gutters are being used therein as described later in this application the roof edge guard 110 exemplified here as made of sheet material consists of an upper face portion 111.