| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a ventilation structure of a parapet crown capable of passing-through of water and air between both surfaces of an outer wall panel, without water leakage to the inside of a vent layer of the outer wall panel.SOLUTION: A ventilation structure comprises an outer wall panel 2 rising up from the edge of an outdoor floor 1 and having a vent layer 2 on the inside and a coping 3 put on along its crown surface and capable of passing-through of the water and the air between both outer wall obverse-reverse surfaces. A ventilation opening 9a communicating with a vent layer 2a is provided in a waterproof sheet 9 put on over the crown surface from a side surface on the outer wall outdoor floor 1 side. A backing plate 8, which has a communication opening 8a for communicating the vent layer 2a and the ventilation opening 9a, is provided on an outer wall crown surface on the lower side of the waterproof sheet 9, and a waterproof accessory 10 is provided on it via the waterproof sheet 9. The waterproof accessory 10 comprises a bottom plate part 10b forming a ventilation opening 10a overlapping with the ventilation opening 9a and fixed on the waterproof sheet 9, a rising part 10c rising up on the periphery of the ventilation opening 10a and a ceiling surface part 10d for covering an upper part of the ventilation opening 10a.</p> |
