However, once the top is pushed open the large gap allows strong winds to enter and also exposes the upper portion of the room. Therefore, the chihchaichuang is used primarily in garden pavilions and studies.
支摘窗由於能支出窗面，通風採光皆佳，但室內上半部也因而暴露無遺，所以多用在深宅內院，避免外人窺伺。