SMOKE-TIGHT TAPE

摘要

PROBLEM TO BE SOLVED: To provide a smoke-tight sheet capable of reliably preventing leakage of smoke by blocking a clearance between a door frame and a door in a short time during a fire.

SOLUTION: A smoke-tight tape 10 which is arranged in a clearance between a door frame installed at an opening of a building and a door supported with the door frame to open or close the opening so as to prevent smoke generated during a fire from spreading through the clearance comprises a low-temperature expansion part 11 that expands by heat at low temperature in an initial stage of the fire and a high-temperature expansion part 12 that expands by heat at high temperature in a peak stage of the fire, which are laminated.

COPYRIGHT: (C)2012,JPO&INPIT