Ridge of greenhouses should be oriented in . . . . . . . . direction to avoid sun scorching.

The Ridge of greenhouses should be oriented in the North-south direction to avoid sun scorching.
The greenhouse should be situated lengthwise from north to south rather than east to west. This position provides the structure with more light and less shade. While unobstructed sunlight is important, afternoon shade may be as important depending upon the types of plants grown and the time of year they are grown.
For low-light crops and special applications such as rooting cuttings, shade is used as a necessary means of limiting total solar radiation.