After reading your website i realized that this approach isnt the best. Pull the barrier tightly across and cover large surfaces as flatly as possible. This is asking for trouble especially with a full bathroom which generates a lot of humid air.
basement vapor barrier installation
Avoid foam insulation that is faced with.
Vapor barrier installation basement. Or you might consider spray foam between the studs. Dont use a vapor barrier in a finished basement. Building experts recommend installing vapor barrier in a basement against the foundation walls before placing studs and insulation. A vapor barrier consists of one or more layers of sheet plastic 6 mil visqueen on top of the soil in the crawlspace or basement.
If you have a framed wall that is adjacent to a concrete foundation wall where the vapor barrier is next to the drywall in front of the studs the fiberglass insulation gets wet and becomes a breeding ground for mold. Matt risinger 475738 views. How to properly insulate a basement wall. How to install vapor barrier duration.
The rationale was the 3 mil vapor barrier would serve to protect the framing from any water intrusion ie such as the vapor given off from the walls as in your first figure. Unfaced fiberglass or roxul rock wool is also acceptable if you already have 2 in. Make sure not to tear or cut the material. Of foam against the concrete.
How to build a shed by yourself all steps. Rigid foam board on the interior like you have is the ideal insulation. The short answer is. Vapor barrier installation dont make these mistakes.
Because excessive dampness in a crawlspace or basement can condense you can install a vapor barrier to protect floor framing from becoming damp and covered with fungus efflorescence and rot. Polyurethane sheeting is a typical vapor barrier that contractors use to prevent moisture from penetrating the walls of a basement. I originally had planned to put a 3 mil vapor barrier directly against the basement walls painted concrete and then frame while leaving a gap between the frame and basement wall and insulate with fiberglass batts. When the mold grows it will spread to everything around it studs drywall etc.
Need one or not. A basement vapor or moisture barrier is installed during the new construction of a home or the remodeling of a basement.
