To surely ensure a thickness adapted to a required fire-resistive performance on the opening end-face of an opening section, to easily confirm the thickness of the fire-resistive covering material carried out on the opening end-face of the opening section by previously confirming the thickness of the fire-resistive covering material and to improve the certainty of the fire-resistive effect of the covering material.
In the fire-resistive covering material 6 having a bendable beltlike fire-resistive heat-insulating section 8 being oppositely arranged to the opening end-face of the opening section formed to a steel frame material and protecting the opening end-face from a high temperature, the surface of the fire-resistive heat-insulating section 8 is covered with a noncombustible metallic foil 9.
FUJII SHINSHIRO
HATANAKA KENJI
HATANAKA YUTAKA
MILX CORP
TOKYO PAIRON HANBAI KK
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
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