| 摘要 |
PROBLEM TO BE SOLVED: To provide a dew condensation prevention tool for a window which can effectively prevent dew condensation with a lightweight and compact structure without requiring a heat source.SOLUTION: A frame body comprises: a frame base which forms a first air layer part by fixing film sheets to the front and back surfaces of a frame substrate having a plurality of cavity parts; a projecting frame part which is formed on the periphery of the front surface of the frame base; and projecting parts which are formed around a central cavity part of the frame base. The front surface side of the frame body is closely contacted and fixed to a window pane facing an indoor side surface, whereby a second air layer part is formed between the window pane and the frame body. |
