| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a drainage ventilation structure of an outer wall, capable of securing even a ventilation passage by a ventilation layer, while discharging rainwater going along a lower part by infiltrating from an outer wall joint, from a lower side joint near to the joint.SOLUTION: A drainer 2 is provided between an upper side outer wall panel 1 and a lower side outer wall panel 1. The outer wall panel 1 comprises an outer wall plate 11, a ventilation furring strip 12, a heat insulation material 13 and an outer wall frame part 14. The drainer 2 is formed by bending, for example, a rust prevention treatment-applied metal plate, and comprises a ventilation layer surface part 21 positioned in a ventilation layer 15 of the lower side outer wall panel 1 and having a ventilation opening 21a, a horizontal joint surface part 22 extended from the ventilation layer surface part 21 and reaching the outside of a horizontal joint by passing through an upper end surface of the outer wall plate 11 of the lower side outer wall panel 1, and an upper side surface part 23 extended from the ventilation layer surface part 21 and positioned on the upper end surface side of the outer wall frame part 14 of the lower side outer wall panel 1.</p> |
