Plastic Over Concrete Floor

If you use an underlayment without a moisture barrier it s a good idea to install a sheet of plastic below it for insurance.
Plastic over concrete floor. Using a glue down floor is an option in above grade installation only since installation below grade requires a plastic barrier on top of the concrete. In cold weather plastic clad concrete curing blankets are often used to protect the surface from snow and insulate the concrete from freezing. However some people prefer to add another thin layer of subflooring between the concrete and vinyl. 500 750 square feet of coverage.
Concrete tends to wick water quickly and the barrier holds back most of the moisture. One of the most effective materials to guard against rain is plastic sheeting visqueen. So technically if you are installing vinyl plank flooring onto concrete you already have a subfloor. Perhaps the easiest way to improve the insulation of a floating vinyl floor on concrete is to install a thermal underlayment preferably made of cork felt or a similar material.
Roll out the underlayment over the substructure surface. A moisture barrier may or may not be needed to insure good adhesion of your vinyl floor so do your homework to avoid problems later on down the road. A concrete vapor barrier is simply a sheet of polyethylene plastic visqueen placed directly on top of the sub grade before the concrete floor or slab is poured to help keep moisture from the soil from passing up through the concrete. It can be constructed from wood plywood plastic or concrete.
Make sure the edges. For the floor adhesive to properly stick the floor must be clean. How to install vapor barrier on concrete floor under laminate flooring. Use a quality cleaner like zep professional concrete and masonry floor cleaner 27 per gallon.
Splice each roll of underlayment with a 3 mil tape duct tape or similar pressure sensitive tape that meets exceeds. A concrete floor with a too high moisture content can wreak havoc on a vinyl floor. Leave roughly 2 3 inches along each side to overlap against the wall. A concrete floor seems like the perfect base for a vinyl floor installation.
When we pour concrete floors over existing concrete floors and the new floor is less than 3 inches thick we use a product called weld crete to bond the two floors together. If the concrete is completely covered with plastic no outside moisture can penetrate to contact the slab. Alternatively screw rows of treated 1x4s to the concrete 16 in. It rolls or brushes on like paint very easy to install creates a bond between the old new concrete floors.