Flooring – install laminate (Pergo) flooring over previous underlayment

engineered-flooringlaminate

I tore up laminate flooring and the underlayment is still intact and in very good condition. Can I install the new laminate (which has the underlayment attached) on top of the existing underlayment?

Best Answer

I am sorry I don't have time to research this right now but I will give you a quick answer and maybe edit later. First - call Pergo and ask.

Second, I have installed 4 different types of Pergo+underlayment and all of them say to take out old underlayment. I think there is first an issue with the floor becoming too spongy and second if there is spongy/vertical movement it could could splintering or disconnecting of the tiles.

If your old underlayment is "padding" I would remove. If it is just a thin vapor barrier then keep it.