There are mainly the following types of greenhouses suitable for long - term use.
First is the steel - structure greenhouse. The main structure of this kind of greenhouse is made of steel materials, which is sturdy and durable. It can withstand relatively large wind and snow loads, and its service life is generally about 15 - 20 years. Moreover, it has a large internal space, which is convenient for mechanized operations, such as using small tillers, harvesters, etc.
Secondly, there is the sunlight greenhouse. It is mainly composed of earthen walls or brick walls, frameworks, and plastic films. Among them, the sunlight greenhouse with a brick - wall structure is relatively strong and has good heat - preservation performance. In winter, it can make good use of solar radiation to maintain the indoor temperature, which is suitable for long - term cultivation of vegetables and other crops. If this kind of greenhouse is properly maintained, it can be used for 10 - 15 years without problems.
There is also the multi - span greenhouse. It connects multiple single - span greenhouses into a whole, with a high space utilization rate. Its framework mostly uses hot - dip galvanized steel, which has good anti - corrosion performance and can generally be used for more than 10 years. In addition, the multi - span greenhouse has a strong environmental control ability and is suitable for long - term planting of flowers, vegetables, etc., as well as scientific research experiments.
