| 摘要 |
PROBLEM TO BE SOLVED: To provide a building material having humidity conditioning property and heat-shielding property effective for the reduction of air-conditioning energy and dew condensation prevention of an architectural structure, and having deodorization and heat insulating properties.SOLUTION: A building material 100 includes: a bag body 13 formed of nonwoven fabrics 11, 12 made of an air-permeable sheet material; bamboo charcoal pieces 14 which are material having humidity control performance accommodated in the bag body 13; and a heat-shielding aluminum sheet material 15 which is one of heat-shielding metallic sheet materials provided on an outside face of the nonwoven fabric 11 positioned on the top face of the bag body 13. Both of the nonwoven fabrics 11, 12 are cloth-like materials formed of synthetic resin fibers, the nonwoven fabric 11 has a single structure, and the nonwoven fabric 12 has a double structure. |
