I am mounting an exterior light onto an existing wall (with siding installed) on my new (yet to be fully inspected) house. I want to recess the electrical box into the exterior wall so that the base of the light fixtgure is flush with the wall; however the "weatherproof" electrical boxes that I have found are primarily for mounting directly to the wall and are a little ugly. If this was an interior wall, I would simply buy an "old work" plastic ceiling box, cut a hole in the wall, and insert the box. However, is a plastic box okay for an exterior application? Is there a code requirement that I need to know?
Thanks