OPENING STRUCTURE AND CONSTRUCTION METHOD FOR OPENING

To provide an opening structure and a construction method for an opening allowing design of the interior to be improved without drastically increasing construction labor and without giving feeling of degraded daylight performance and a short circuit of air flow when seeing the same from an indoor side.SOLUTION: An opening structure 1 is provided with: an outer wall opening 7 formed in an outer wall panel 3; an outdoor frame 8 formed on a peripheral edge of the outer wall opening 7; a ventilation fan unit 9 arranged in a frame of the outdoor frame 8 and having an air outlet 26 in an outdoor side of the outer wall 2; a window unit 10 arranged in the frame of the outdoor frame 8 below the ventilation fan unit 9; an inner wall opening 27 formed in an inner wall panel 4; and a window trim 26 formed on a peripheral edge of the inner wall opening 27. The window unit 10 is arranged in a frame of the window trim 26 and exposed to the inner side, and the ventilation fan unit 9 is in communication with a suction opening 28 formed in the inner wall panel 4 at a position further above that of the window trim 26.SELECTED DRAWING: Figure 4 【課題】 施工手間を大幅に増加させることなく、屋内側から見た場合に採光性能の低下や気流のショートサーキットを感じさせることがなく、内観の意匠性を高めることができる開口部構造、及び開口部施工方法を提供する。【解決手段】開口部構造１は、外壁パネル３に形成される外壁開口部７と、外壁開口部７の周縁に形成される屋外枠８と、屋外枠８の枠内に配置され、外壁部２の屋外側に排気口２６を有する換気扇ユニット９と、前記換気扇ユニット９の下側で、屋外枠８の枠内に配置される窓ユニット１０と、内壁パネル４に形成される内壁開口部２７と、内壁開口部２７の周縁に形成される窓額縁２６と、を備え、窓ユニット１０は、窓額縁２６の枠内に配置されて屋内側に露出するとともに、換気扇ユニット９は、窓額縁２６よりも上方の内壁パネル４に形成された吸気開口２８に連通する。【選択図】図４