6571 [no name?], as I pointed out above, the stick on things prevent that condensation, the fabric insulation on the factory mats absorbs and holds it - the condensation is caused by the warmer and moister interior air against the metal floor, which is at outside ambient temp, another way to reduce that effect is to undercoat the floor well, but having a good full vapor barrier [the stick on elastomeric things] on top creates a total separation, same reason it's used in houses
Bill