FLOOD RESISTANCE WINDOW

To provide a flood resistance window capable of preventing creation of a gap between a window and an opening by suppressing deformation of the window due to water pressure, and maintaining a water cut-off structure constructed in a normal time.SOLUTION: In a flood resistance window 100 in which a window 20 having a sheet glass 21 as a sash and a frame body 29 holding an outer peripheral edge of the sheet glass 21 is attached to a through hole 14 for a window formed on a wall 12 of a reinforced-concrete building 10, a reinforcement frame 40 is attached on the wall 12 of an outside opening part 14A of the through hole 14 for the window over a required width range along an opening edge of the outside opening part 14A, and an inner side surface of the frame body 29 is tightly attached to the reinforcement frame 40.SELECTED DRAWING: Figure 2 【課題】水圧による窓の変形を抑え、窓と開口部との隙間の発生を防ぎ、通常時に構築した窓の止水構造を維持することが可能な洪水耐性窓を提供すること。【解決手段】障子としての板ガラス２１と、板ガラス２１の外周縁を保持する枠体２９と、を有する窓２０が鉄筋コンクリート造建物１０の壁１２に形成された窓用貫通孔１４に取り付けられた洪水耐性窓１００であって、窓用貫通孔１４の室外側開口部１４Ａにおける壁１２には、室外側開口部１４Ａの開口縁に沿った所要幅範囲にわたって補強枠４０が取り付けられており、枠体２９の室内側面が補強枠４０に密着していることを特徴とする洪水耐性窓１００である。【選択図】図２