Hi: Do you electrical contractors in the USA ever use gasketed electrical boxes in house wiring. We have to use either them, or plastic vapour barriers around any boxes in outside walls and ceilings to ensure a continuous vapour barried in the house. If so, who makes the gasketed ones you use. Also, i was looking at some of the US Boxes, and could not see a ground bar in them. Do you have to tie your grounds to the box (Yes, Even the plastic ones here have a metal strip that we have to ground, and it goes to the screw hole where the device is mounted in. The reason i am asking is because these boxes (Single gang) cost about $3.25 each at our wholesalers, and i was wondering if i can find them any cheaper elsewhere.
