Installing Vapor Barrier Around Recessed Lights

In this video i show you the process for installing a vapor barrier around an electrical box.

Installing vapor barrier around recessed lights.

I am going to reinstall new insulation and cover the hot side with vapor barrier before installing drywall. Made my own by cutting rigid insullation forming into boxes to fit around with edges sealed with tuck tape. Vapour barrier and air tight ic potlights. Installing batts in most existing homes however is rarely feasible as drywall would have to be torn down a messy expensive time consuming proposition.

This product it made out of very thin plastic and will burn or melt when exposed to heat. Look over the ceiling joists before installing your moisture barrier. The science of moisture movement. Installed recessed potlights ic type inside large plastic shells vapor barrier.

With the recessed lighting vapor barriers do i leave them empty or do they get illed with insulation as well. Blown in insulation can be added to. Water vapor can pass through building materials in several ways including direct transmission and by heat transfer but studies suggest that fully 98 percent of the moisture transfer through walls occurs through air gaps including cracks around electrical fixtures and outlets and gaps along baseboards. The attic is a pain to get into and is full of trusses so had always avoided the recessed light talk with my wife to be because i know traditionally a recessed can would also need to have a large vapor boot installed to seal with the existing barrier.

Just use the tenmat product or use ic rated recessed fixtures. Remove any nails screws staples or large splinters on the joist face where the vapor barrier attaches. We install a number of pot lights prior to insullating our attic. It is important to use a vapor barrier when installing an elec.