Patent ID: 8387893

Claim:
A structure of a dry heating system which comprises a heat radiator and an upper board stacked on the heat radiator, wherein the upper board comprises a plurality of first upper board elements and a plurality of second upper board elements to constitute a double-layer structure, and the first upper board elements and the second upper board elements are stacked on the heat radiator such that seaming portions between the first upper board elements and seaming portions between the second upper board elements are alternately arranged at upper and lower portions of the upper board so as not to overlap each other; the structure further comprises a heat insulation material formed on a slab constituting a bottom of a building, and a side molding material provided to a side of the heat insulation material and fixed to the slab; the heat radiator is positioned on the heat insulation material and employs hot water as a heat source; the first upper board elements are stacked on the heat radiator and fixed to the side molding material; the second upper board elements are stacked on the first upper board elements and bonded to the first upper board elements by adhesives; and the side molding material has a square shape with a chamfer portion formed at one corner thereof such that a portion of the side molding material is disposed on the slab, and a gap is formed between the chamfer portion and the slab and a wall of the building, wherein a total thickness of the first upper board elements and the second upper board elements is in the range of 9-12 mm, each of the first upper board elements has a thickness of 6-8 mm, and each of the second upper board elements has a thickness of 3-6 mm.