I'm simply going to explain what happens in a wall cavity with and without a plastic vapor barrier installed.
Where Does Vapor Barrier Go In The Wall. In any case, the vapor barrier must point to. Vapor barriers are sheets of plastic or other material placed on one side of insulation sheets.
BSD-106: Understanding Vapor Barriers | Cavity insulation ... from i.pinimg.com
Like others state in this thread, where is the water going to go when it gets to the bottom? I'm using wood studs and moisture resistant wallboard. Interior bathroom and kitchen walls, for be very careful not to break the plastic during installation.
The practice of putting polyethylene vapor barriers in houses was intended to keep them dry, but it ends.
I'm simply going to explain what happens in a wall cavity with and without a plastic vapor barrier installed. How does it get throught the tile, grout, thinset, backerboard in the first place. Where moisture is a known problem, vapor barriers are integrated into wall, ceiling, and floor construction to combat the effects. Plastic poly sheeting true 10 mil is available o amazon if you are interested.
