To provide a ventilation ridge structure capable of developing effects against the entry of rain water, harmful insects, dirt, and powder snow and securing sufficient permeability.
In this ventilation ridge structure, a lower draining 3, an upper draining 4, and a porous body 2 are fitted to each of both side ridge top side parts facing an opening part 10 at the ridge top part of a roof sheathing roof board 1, and a ridge packaging member 5 is installed from their upper side. The porous body 2 is formed in a cylindrical porous plate shape having long pores in cross section. The communication direction of the pores is positioned along the direction of the gradient of the ridge, the end face thereof on the ridge outer side is cut horizontally, and the lower draining 3 between the ridge top side part and the porous body 2 is bent upward to the extension tip side of the ridge inside top part side to form a fold-back part 31 covering the projected surface of the porous body 2 as viewed from the communication direction of the pores. The upper draining 4 between the porous body 2 and the ridge packaging member 5 comprises, on the extension tip side of the ridge inner top part, a folded back part 41 stopping the splash of rain water intruding from the outside of the ridge into the ridge through the porous body 2 and dripping it onto the draining 3.
KAKIGI YOSHIHIRO
KOKUBO TAKAHIRO
NISHIMURA TAKESHI
HATA TOMOHIRO
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