Traditional Culture Encyclopedia - Traditional virtues - I have an assignment about the roof structure of ancient buildings in China. I want to know how the radian of the eaves is formed. What material is it made of?

I have an assignment about the roof structure of ancient buildings in China. I want to know how the radian of the eaves is formed. What material is it made of?

It is made of wood. Example 5: Mang Hard Mountain Building: Generally speaking, the roof has purlins, rafters, surface boards, surface board ashes, mud ashes, slab tiles and pipe tiles from bottom to top. Purlin pads are parallel to each other in the width direction of the roof, and are divided into ridge purlin (top purlin), gold purlin (middle purlin) and eaves purlin (two purlins of eaves). Rafters are vertically fixed on purlins. The rafters between ridge purlins and gold purlins are called brain rafters, and the rafters between gold purlins and eaves purlins are called eaves rafters, which means that the rafters on the whole roof are not a whole, but two or three. I hope I can help you.