FLOOR STRUCTURE

摘要

A floor structure comprising an upper layer containing a hydroxide, a middle layer for providing the structural strength and the lower layer covering the lower surface, in which at least the middle layer and the lower layer are composed of flame-retardant material and the layer of heat insulating material is formed therebetween. The floor structure is excellent in the fire-resistance and heat-resistance, as well as it can facilitate the mounting of equipments or the likes below the floor.