The main performance and characteristics of plastic greenhouses/shelf arch greenhouses/ground greenhouses

1. Structural Characteristics of Plastic Greenhouses

Plastic greenhouses feature a single-span design with narrow width and extended length, making them ideal for linear crop planting patterns. Their structural strength varies by direction: lateral wind resistance is strong, while longitudinal wind resistance is relatively weak.

To enhance overall stability, diagonal braces are required at both ends to reinforce gable wall columns. All arch bars must be firmly anchored—either to a concrete foundation or via spiral ground anchors for foundation-free setups.

Snow load is rarely a primary design concern due to two factors:

Poor insulation limits winter usage in cold regions.
The arched roof slope allows most snow to slide off automatically.
However, for snow-prone spring/autumn areas or flat-roofed large-span models, snow load capacity must be verified.

2. Equipment Configuration for Plastic Greenhouses

Basic Setups

Simple structures (bamboo-wood, reinforced concrete) rely solely on plastic film for insulation and manual sidewall gaps for ventilation.

Advanced Systems

Galvanized steel frame greenhouses include:
- Manual/electric sidewall roll-up systems with insect nets
- Roof-mounted vent openers (critical for aquaculture/livestock)
- Temporary heating (for flower nurseries in mild southern winters)

Multi-Functional Adaptations

Southern regions often use plastic greenhouses as dual-purpose structures:

External sunshade nets over film for heat control
Integrated rain protection + shading for year-round cultivation

Note: Underground heat exchange systems (successful in Japan) boost nighttime temperatures but remain uncommon in China due to high construction/energy costs.

3. Functional Traits of Plastic Greenhouses

Seasonal Usage

Northern China: Limited to early spring (1 month earlier) and late autumn (1 month later) due to poor insulation.
Southern China: Supports overwintering production; combines with rain/shade features for annual operation.

Temperature Dynamics

Rapid heating: 10℃+ daytime temperature difference under sunlight.
Risk of reverse temperature difference: Indoor temperatures drop below outdoor levels on clear nights—requires proactive monitoring.

Key Advantages

Easy installation and low cost
High light transmittance
Efficient natural ventilation via roll-up systems

For personalized advice on plastic greenhouse design, equipment selection, or regional adaptation strategies, contact our agricultural specialists at [email/phone]. Explore our full range of greenhouse solutions [Plastic/UV Film Agricultural Greenhouse for Vegetables & Flowers from China Suppliers].