| 摘要 |
PROBLEM TO BE SOLVED: To provide a ridge ventilation device for surely cutting off a ventilation flue when a flame, a hot blast or the like is given in the case of fire in a ridge ventilation system. SOLUTION: The ridge ventilation device provided to the ridge of a roof includes the upper part 1 of a ridge ventilation device body having a ventilating gallery 10 forming a plurality of ventilating openings 11 therein, a partition plate 2 placed downward the upper part 1 of the body and forming a recess 22 in a place corresponding to at least the ventilating gallery 10, the lower part 4 of the body placed downward the partition plate 2 and leading rain water, etc. forcibly entering from the ventilating openings 11 to the lower part of an eaves and a heat foamable fire resistive sheet 3 placed between the recess 22 of the partition plate 2 and the upper part 1 of the body and cutting off the ventilating openings 11 of the ventilating gallery 10 by heating expansion. COPYRIGHT: (C)2004,JPO&NCIPI
|
