How do i retrofit a junction box and maintain the vapour seal.
Retrofit junction box ceiling.
Often wiring from that era of home construction now has dry brittle insulation on it.
You will need to remove the old pancake junction box.
They are often used in situations where you are adding outlets or extending an existing circuit in a room that is already finished.
Before installing a ceiling fan make sure that you follow the portion of the electrical code that requires that you use a fan rated outlet box that will support the extra weight and the motion associated with a fan.
Typical cold climate construction.
Drywall 6mil vapour barrier fiberglass batt insulation.
Buy an old work electrical box.
Installing a ceiling electrical junction box.
Do it carefully so as to not damage the existing wiring.
An old work box is designed to be installed after the fact on walls that are already finished.
Installing a light fixture or outlet in the ceiling requires an electrical junction box to hold the wire connections and the fixture or device.
Typically for new construction you d use an insulated and sealed box.
Learn how to retrofit a ceiling fan electrical box.
To be clear by retrofit i mean the drywall is up and i d like to install this without having to repair any drywall.