| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal heat insulating roofing whose durability has been increased and heat and sound insulating properties have been improved by only applying a heat insulating coat material to the surface of metal molded roof tiles without using a sheathing board or the like on the rear side. SOLUTION: A heat insulating coat material 3 obtained by mixing 300 to 900 pts.wt. of ceramic fine hollow grains whose compression strength is 600 kgf/cm<2> or more, bulk specific gravity is 0.3 to 0.5 g/cm<3> , and melting point is 1500 deg.C or higher, 100 to 250 pts.wt. of glass grains, and 100 to 500 pts.wt. of natural crushed stone to 100 pts.wt. of a coat waterproofing material composed of a synthetic resin emulsion is applied to the surface of a metal molded roof tile obtained by press molding a metal sheet as a surface layer. After dried, a fluororesin is applied to the surface. |
