A plurality of siding flange implementations comprising weatherproof siding flanges combined with an electrical wall box or a while-in-use electrical cover. The siding flange may be integrally formed with the electrical wall box or removably coupled to the electrical wall box, for example, on an inside surface of the box. The siding flange may comprise weight reducing pockets separated by strengthening ribs. The siding flange may also comprise a lip extending forward of the siding flange and having one or more grooves therein. The grooves may allow portions of the lip to be removed to adapt to varying siding material thickness.