Ancient house lift the tiles can see inside the house?

Ancient Chinese general house roof slope about 35-45 degrees between, no matter which kind of roof style, are in the roof of the roof with purlins down lap, purlin hanging rafters, general purlin diameter is relatively large, between 6-10 centimeters. Nail the roofing board on the purlin, look out for the board, the thickness of the board is 2-5 centimeters, the board is smeared on the mud, the thickness of the mud is 15-35 centimeters, some houses do 45 centimeters, and then pave the tile on the mud. The corner of the roof and the top part of the corner of the roof to do the ridge, the ridge are used green tiles, tight joints, in order to resist the rain. This is the basic structure of the roof. As for the eaves, it is divided into two styles: the eaves and the fireproof eaves. Pick eaves, the rafters lengthened, outward outreach, outstretched how much according to the design decision; sealing the eaves that is the rafters do not extend the mouth of the external wall, with brick stacked beams, one by one outward outstretched, the whole and the roof together, the wooden beams rafters, etc., wrapped in the interior, which is called the fireproof eaves, this fireproof eaves of the fire prevention effect is very good So that kind of uncovering the tiles on the peeping-tom You just as a fun line line of the real on the end of it For example, ancient Chinese martial arts also That's a serious violation of human mechanics and Newton's laws. Of course, I remember some small towns in Jiangnan had houses with roofs made of small tiles, but those tiles were so brittle that even a cat stepping on them would make a noise, not to mention a person going up there. It's a martial arts movie, not real.