How to use tiger window to do carpentry

The tiger window is on the roof of the house, ventilation window. The carpenter made a set of hinged windows and window frames with covers. Builders can create rainwater channels by squeezing the window frame openings.

The carpenter made a set of hinged windows and window frames. The key is to make window frames and covers. Wood should use Chinese fir core, and aluminum alloy should use thick-walled threshold material. The outer surface of the window frame is in the shape of a rectangular high pot cover, and the middle is covered with a hinged window to prevent rainwater from leaking. A long pole is used to open and close the window (there are several hook holes on the pole according to the height).