These are typically used for floating floor applications.
Tile moisture barrier.
Floating floor installations when installing laminate or other floating floors over cement vct ceramic tiles or kitchen vinyl use 6 mil poly sheeting plastic as the moisture barrier.
There are a variety of underlayment types including foam and cork underlayment plywood hardboard and cement board.
Whether you re laying tile hardwood flooring or laminate flooring underlayment is an essential moisture barrier that also provides insulation and sound absorption.
If moisture reaches your vapor barrier behind the tile substrate it should have the opportunity to evaporate this process is hindered when a second vapor barrier is applied or installed to the outside of the tile substrate.
Nance carpet and rug versapad 180 sq.
Need help deciding on underlayment type.
Acoustical underlayment w vapor barrier for luxury vinyl flooring 54 pack model qwlv100 2 430 00.
I still recommend installing a vapor barrier behind the substrate and if you plan on installing a steam generator you will definitely need a vapor barrier.
Some underlayments have a built in moisture barrier.
In this case there is less breathability to encourage evaporation which ultimately could cause mold growth.