Vapour Barrier For Laminate Flooring. Here are the basics of why you need a moisture barrier under your laminate floors. 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.
No need to bother with large fold-out low quality off-spec construction grade films which can be bothersome and hard to use before the floor is installed. Our MoistureBlock is a 6 mil polyethylene film vapor barrier that is used during the installation process with floating laminate luxury vinyl planks and engineered wood floors. There are a variety of underlayment types including foam and cork underlayment plywood hardboard and cement board.
Sheets are available in different sizes.
The best approach is to lay a sheet also called a membrane of PE plastic 02mm thick beneath laminate flooring. A vapor barrier under laminate floor required for most laminate flooring installed over concrete. A single sheet measuring four by four metres is large enough to cover most rooms. You can also use an underlayment with a moisture barrier built-in for water vapor control.
