In most cases you will not want to use a vapor barrier type underlayment when installing laminates on a standard plywood subfloor because wood is a natural material that needs to breathe installing a vapor barrier over this can cause moisture to become.
Carpet over laminate underlay.
Installing laminate flooring over carpet underlayment will do more harm than good in the long run.
There is underlay for many different requirements such as fibre underlay for carpet to foam underlay which is suitable for wood laminate and carpet.
A breathable foam type underlayment is generally used when installing laminate flooring over plywood or osb subfloors.
Put simply carpet underlayment is too thick.
We offer a wide selection of flooring underlay types for wood laminate and carpets.
Most laminate flooring underlayment is 1mm to 3mm thick.
When it comes to installing a new flooring material you sometimes have the option of installing the underlayment for your new floor directly on top.
Carpet removal from house of humble blog why can t i use carpet underlayment.
I plan to buy pergo laminate planks and install it over a 12 inch tiles floor which is pretty level my question is what thickness is the pergo underlayment and would i be better suited to buy the flooring without underlayment and buy a better grade of underlayment i will be buying 10 or 12 mm flooring ac4 any help would be greatly.