Kraft paper vapor barriers
This type of vapor barrier is made from Kraft paper reinforced with glass yarn. It is coated with a polyethylene coating to make it moisture-proof. Kraft paper vapor barriers are often used for walls and ceilings.
Polyethylene vapor barriers
These are made from moisture-proof polyethylene film. They are often used for floors and walls.
Aluminum vapor barriers
These are made from an aluminum sheet covered with a moisture- proof polyethylene film. They are often used for roofs and walls.