Installing A Floor In A Alminum Boat Installing A Sub Floor In The Basement Necessary Before Laying Laminate Down?

Installing a sub floor in the basement necessary before laying laminate down? - installing a floor in a alminum boat

My friends advised me to install a subsurface before installing the laminate flooring in the basement for possible leaks, but laminate flooring. I noticed a loss here and there in the basement, but not until the end. What are the benefits of installing an underground before installation of laminate flooring. Are there medical services, such as mold allergies or less aid?