Why are the roof tiles in ordinary houses black?
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Why are the roof tiles in ordinary houses black?
Not necessarily; there are also red ones, probably depending on the manufacturing processes of the brick and tile factories； Cement tiles can be made in various colors.
Old tiles should be classified as gray, tile gray. Is this related to the \"black color\" highly valued in the ancient Han Dynasty? The red bricks produced by the Japanese invaders later on had an impact on the production of red tiles in subsequent periods.
Here, the buildings have red bricks and red tiles, but red bricks are rare these days
It is related to the firing process; red tiles are fragile
This post was last edited by qugd on 2020-7-12 at 22:38. The surfaces of traditional tiles are not glazed; exposed to wind, sun, rain, and snow over time, they accumulate dust and even develop microorganisms, which gives them a grayish-black color. However, the tiles used in the palaces of the past were glazed tiles, with a smooth surface that was impermeable, allowing them to remain shiny for many years. In the past, some wealthy families also used glazed tiles, namely what are known as colored tiles, but the color could not be yellow; it might be green, brown, iron red, etc., similar to the colors of today’s ceramic tiles.
Now, it is almost no longer common to use fired tiles for building houses, and machine-made cement tiles containing asbestos are also rare.