Plastic Sheeting Vapor Barrier Basement

The 6 mil layer of plastic helps to minimize potential moisture migration up into the plywood.

Plastic sheeting vapor barrier basement.

It gets a little more complicated since you are adding a tiled shower where the recommended method is to place a vapor barrier behind the backerboard and a waterproofing membrane between the backerboard and tile thinset is applied over the membrane. A 6 mil thick poly is commonly used as a vapor barrier and offers short term savings to the homeowner. Vapor barriers for basement floors. Option a can be applied on concrete where there s a higher risk of some dampness.

I recently finished out my basement and i m asking this after the fact. Stucco polyethylene tape 48 mmx55 24 rolls per case clear pinked edge for seaming plastic sheeting buy 24 rolls save 10 buy 48 rolls save 15 polyethylene tape pe tape ipg s. As the name suggests a vapor barrier is a material that prevents water vapor from passing through it. He lifted up the ceiling and put his arm behind the wall and it was soaking wet.

In exterior walls that are below grade like basement walls. The standard installation of a plastic vapor barrier is between the studs and the drywall but there are some exceptions to this. The initial layer is a durable high density polyethylene sheet or similar system that uses evenly spaced 3 8 in. However those savings may likely be lost in the long run if someone walks or crawls on the poly causing micro holes in the vapor barrier.

A vapor barrier s job is to keep water vapor in humid air from diffusing through one side of a wall and finding a cool surface inside the wall. Again avoid foam faced with foil or plastic sheeting. Building codes usually require a vapor barrier 4 mil plastic sheeting on exterior basement walls if the framing is attached to masonry or concrete surfaces or if the wood framing butts up against the outer basement walls. I friend of mine did this and he had water all over his carpet.

A vapor barrier reduces the movement of water vapor by. Reinforced polyethylene plastic sheeting poly comes in a variety of thicknesses and strengths. I was told to put up plastic sheeting between the concrete wall and the studs insulation as a vapor barrier. They are most commonly made of plastic or foil sheeting and are installed into the walls or ceiling of a home most typically in a basement in order to provide an additional layer of protection against water encroachment.