Abstract: A drying apparatus for a water damaged floor structure having an intermediate layer between a surface layer and a subfloor, which drying device comprises a suction blower for, from an outlet opening in the floor structure, drawing humidified process air from the intermediate layer and heating the humidified air, and a sorption dehumidifier to receive the heated process air from the suction blower, convert it to heated dry air and, through an inlet opening in the floor structure, separate from the outlet port, force the heated dry air to the intermediate layer, where the heated dry air accumulates moisture from the floor structure and is converted to new process air which is again sucked up and heated by the suction blower in a closed process. According to the invention, the dryer has a PTC element for a sorbent block in the dehumidifier, a common housing for the suction fan and dehumidifiers, and a sound and heat insulation in the housing.

Abstract: A water damaged floor (10) is dried by forming an opening (18) in a flooring (14) of the floor and creating and forcing an airflow from a surrounding space (28) through the opening (18) into a ventilating space between the flooring (14) and a subfloor (22). According to the invention, an end portion of the flooring (14) is elevated from the subfloor (22) for creating said ventilating space and for creating an air passage (27) between the ventilating space and the surrounding space (28) at an edge of the flooring (14).