· Raised flooring is excellent if you want to have a way to run large batches of cables and cords through a floor without the risk of tripping over it This is one of the best ways to get rid of cable clutter, improve the overall look of your office, and also prevent having employees trip Areas that have large amounts of electrical use may benefit from a raised floorThe key thing to consider when pouring a new concrete slab over an existing slab is that the quality of the new slab will only be as good as the slab underneath it If the quality of the slab underneath is poor, the quality of your new surface will be poor too Your polished concrete floors may not last as long If poured and polished correctly, polished concrete floors can last for decades (if not• Directly Over Concrete Floating floors, engineered floors, some solid strip and plank, and some parquet Solid wood flooring is never recommended below grade, but some solid wood flooring manufacturers now recommend their products f...