FLOOR EXECUTION WORK METHOD OF BUILDING

PROBLEM TO BE SOLVED: To facilitate execution work of a floor by fixing a sill on a flat surface, laying foamed heat-insulating materials by leaving arranging spaces by use of spacers, and injecting the foaming heat-insulating materials into the arranging spaces between the mutual foamed heat-insulating materials. SOLUTION: A sill 2 is fixed on a flat surface 1, and foamed heat-insulating materials 3 such as a foamed polystyrene plate molded in a plate shape are laid while forming arranging spaces 5 by arranging spacers 4 on the flat surface 1. Next, field foaming heat-insulating materials 7 are injected into the arranging spaces 5 between the mutual foamed heat-insulating materials 3 and the arranging spaces 5 between the foamed heat-insulating materials 3 and the sill 2, and a heat-insulating layer is formed. Next, a sheathing board 8 is installed on a foamed heat-insulating material laying side surface under columns 12, and a moistureproof sheet 6 is arranged, and concrete 10 is placed on floor reinforcements 9. Therefore, a floor of a building can be efficiently and inexpensively executed.