There are many reasons why someone might have to lift the laminate up to get to floor underneath whether it is damp water spillage or the need to access pipes.
Can you reuse laminate flooring underlay.
The lifetime of a floor goes through repairs reuse and general upkeep that will require a laminate floor to be removed at some stage.
No reason why not to reuse it will be fine.
Now you may think that added cushion equals a softer floor.
Laminate flooring comes apart as easily as it goes together but the edges are fragile so you have to disassemble a floor carefully if you want to reuse the boards.
As with the flooring itself ebay or freecycle might be the easiest options if you just want to get rid of it.
The reasons why one might need to get rid of the laminate to get to the floor underneath might be many to repair damp access piping or even wiring that might be housed underneath the floor lamination.
Aside from that though i guess it could be used in the same was as thin foam sheeting or foam shelf liners from supermarkets as packaging insulation around pipes or for making wine bottle can sleeves to keep them cool.
If you reuse your thick carpet padding your floor will be too bouncy and it may damage the locking system.
You absolutely cannot use carpet underlayment underneath laminate flooring.
Laminate flooring comes apart as easily as it goes together but the edges are fragile so you have to disassemble a floor carefully if you want to reuse the boards.
This is also wrong.
The lifetime of a floor goes through repairs reuse and general maintenance and this requires that the laminate floor be removed for certain purposes once in a while.
Now of course that means we know have both carpet and carpet underlay to get rid of doubling the amount of stuff to reuse or recycle.
There shouldn t be any problems.
Most carpet underlayments range from 8mm thick to 10mm thick way too thick for laminate flooring installations.