| 摘要 |
PROBLEM TO BE SOLVED: To provide a building interior plate material which, when a charcoal board is held by a gypsum board according to a request for fire resistance and fireproofness of a building, restrains scattering of powdered charcoal as much as possible while allowing the charcoal board to maximally exhibit a life environment improvement effect of charcoal, and is also improved in workability.SOLUTION: A frame-like spacer 2 surrounding at least its four peripheries is stuck to one surface of a building interior gypsum board 1 with an adhesive, and in an area surrounded by the spacer, a charcoal board 3 obtained by compressing powdery grain-like charcoal and solidifying the compressed charcoal into a plate shape thinner than a thickness of the spacer, is stuck to an inside surface of the gypsum board with an adhesive, and a porous outside plate 4 for covering the charcoal board is stuck to a surface of the spacer with an adhesive, and a ventilation clearance 6 is formed between the bonded outside plate and the surface of the charcoal board. |
