How to stipulate the ridge height of rural self-built houses

The ridge height of a rural self-build house is specified as follows:

1. When no more mezzanine floor is designed, the building height from ridge to roof can be set at 2.4 meters.

2. When a rural self-build house is designed with a sloping roof, the height of the roof is specified to be 12 meters in depth front to back, and 6 meters in half, with a quarter water.