ᐅ Install 2mm PE film as underlay for 10.5mm cork flooring

Hello everyone,

Yesterday, I installed the polyethylene (PE) sheet required by the manufacturer for our cork flooring (10.5mm (0.41 inch) thickness from WICANDERS).

The sheet has some wrinkles in certain areas, and I wanted to ask if this could actually cause the floor to be uneven?

I honestly can’t imagine that such a thin sheet must or can lie completely wrinkle-free on the floor—it seems practically impossible to achieve during installation. The floor also has some weight and should press the sheet down after the floating installation, right? Or am I mistaken here?

Hello questioner.
To answer your question briefly:
No, if there are small, unavoidable wrinkles in the PE foil during installation, this will not affect the surface finish.
So you are correct in your observation!
Regards, KlaRa