| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor backing material 5 with a heat storage function and to also raise the strength of the floor.SOLUTION: A plurality of floor backing materials 5 consisting of plywood are fixed to a beam 2 and a floor beam 3, and a plurality of heat storage reinforcement units 10, 10,... are fixed to the top faces of the floor backing materials 5. Each heat storage reinforcement unit 10 comprises: a reinforcement surface material 11; a wooden crosspiece 12 fixed to the bottom face of the reinforcement surface material 11 in which a vertical crosspiece part 12a and a horizontal crosspiece part 12b extending in vertical and horizontal directions of the reinforcement surface material 11, respectively are arranged to contact each other; and a protective layer 13 fixed to the bottom face of the wooden crosspiece 12. A heat storage material accommodation part 15 sectioned by the wooden crosspiece 12 is formed between the reinforcement surface material 11 and the protective layer 13, and a latent heat storage material 16 is accommodated in the heat storage material accommodation part 15. The plurality of heat storage reinforcement units 10, 10,... are integrally fixed to the floor backing material 5 so that there is no gap between the adjacent heat storage reinforcement units 10, 10 and the wooden crosspieces 12, 12 of the heat storage reinforcement units 10, 10 contact each other. |
