The original post: /r/diy by /u/sypher1187 on 2024-11-12 16:33:51.
I'm planning to add an outlet for a TV on a finished wall. The wall is an exterior wall so it has insulation and a vapour barrier. I noticed that when the house was constructed, they used gang boxes with a foamed flange similar to this. I don't want to deal with extra drywall work so is there a way to add a single gang box and maintain the sealed air space? Am I over thinking this and all I really need to do is just tape the edge of the box to the vapour barrier with insulation tape?