Imperfect opening around exterior electrical outlet box
Yesterday I replaced an existing octagon box with a new round weatherproof electrical outlet box for a new LED yard light. Any recommendations to properly fill the gaps between the new box and asbestos siding? (see photos for what was there before and scope of the gaps.) Heavy caulking again? It is a north-facing exterior wall and is unprotected given the overhang above is very short and much higher up. Thank you.