Is the roof of the adobe house longer in front or behind?

In rural areas, it is customary to build a house with a short front and a long back. Now in Gai Lou, the central beam is close to the front, not in the middle, indicating that future generations will continue to grow. Regarding geomantic omen, it is taboo to build tile roofs in rural areas, which are short in front and long in the back. It is easy to breed darkness and attract ghosts behind the house. After the braid grows, it is easy to become a handle, and the Lord is squeezed out and suppressed, leaving bad evidence in people's hands. The house is square, sunny and unbiased. Coordinates front, back, left and right are up.