Do I Need A Vapor Barrier Under Carpet

Not every wall does.

Do i need a vapor barrier under carpet. Installing a moisture barrier underneath your carpet is a always a good idea. See what goes into waterproofing a basement too. If you use one it is no harm but you don t really need it. It will not only help you keep your carpet clean and dry but it will also protect the wood or cement underneath the carpet from becoming damaged.

Do you know if there are any contra indications to putting the vapor barrier on top of the concrete to separate it from the carpet pad. The felt paper is a good option for hardwood but since you re nailing the hardwood down you do not need a foam underlayment. The crawl space has a scratch coat of cement on the floor. Whether or not you need a vapor retarder hinges on three main factors.

A vapor retarder is a material used to prevent water vapor from diffusing into the wall ceiling or floor during the cold winter. After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one. For a dry mold free finished basement floor always install a vapor barrier before laying a wood subfloor or carpet pad. Any kind of persistent moisture will allow mold to get a foothold and soon ruin carpet or wood flooring.

Any of our vapor barrier types of products can be used in this application over the concrete slab. Before one can make the best decision regarding whether or not to place a vapor barrier under a concrete floor slab on grade it is important to understand the sources of moisture how it moves through the slab and how it adversely affects certain floor coverings adhesives and coatings. For below grade slabs assume that the concrete floor will get damp.