This video blog post is about how to uplift underlay in case you want to fit a new floor, which implies fitting a new underlay, or when you want to clean your subfloor.
If your underlay is glued on the subfloor, you will need a heat gun in order to melt the glue.
Flooring underlay is a soft layer of cushioning placed between the finished floor and the subfloor. It is used when installing laminate and engineered wood flooring and it can be made of various materials. To find out more about the purpose of having underlay as well as its advantages, click here.