What is the covering of the outside of a greenhouse known as?

The covering of the outside of a greenhouse is known as glazing. This term specifically refers to the transparent or translucent materials used to cover the structure, allowing sunlight to enter while creating a controlled environment for plant growth. Common glazing materials include glass, polycarbonate panels, and polyethylene film, which offer different levels of insulation, light transmission, and durability.

The importance of glazing lies in its ability to maximize natural sunlight while minimizing heat loss, which is essential for maintaining the optimal temperature and light conditions needed for plant health. Proper glazing also helps in reducing condensation and preventing pests, contributing to the overall efficiency and effectiveness of the greenhouse as a growing environment.