Did the ancient window lattice refer to the windowsill?

1. Window grid refers to a pane (a horizontal or vertical grid within a window). There was no windowsill in ancient times, so you can recall the scenes in costume dramas. There was no ceiling in ancient times. The ceiling was originally made of gypsum board and mineral wool board. In ancient times, there was a canopy, or roof, above the house, which was the material itself when building the house. In fact, the ceiling is a layer of space different from the building roof material.