Installing laminate flooring over carpet underlayment will do more harm than good in the long run.
Can you install vinyl flooring over carpet padding.
As much as you want to cut down costs on a new floor this is not the way to do it.
One of the contractors i was speaking with about replacing carpet asked me if i wanted to have the flooring installed on top of the carpet pad.
I thought it strange but he said that he worked on an apartment complex and they did just that on about 10 units.
Carpet removal from house of humble blog.
The most common type of floors floated over carpet are vinyl and laminate given they are budget friendly and feature a simple interlocking system of installation.
You absolutely cannot use carpet underlayment underneath laminate flooring.