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No. 50, Lane 100, Jiaqian Road, Nanxiang Town, Jiading District, Shanghai, China
Greenhouse Wet Pad Cooling System: Efficient Cooling for Hot-Climate Growing
Release time：
2026-09-17 00:00
A greenhouse wet pad cooling system provides an efficient way to manage high temperatures, particularly in hot and dry climates. By using the natural cooling effect of water evaporation, the system draws hot outdoor air through moist cellulose cooling pads with the help of exhaust fans. As the air passes through the wet pads, heat is absorbed through evaporation, allowing cooler air to enter the greenhouse. Depending on ambient humidity, the system can reduce incoming air temperature by approximately 10–15°C, helping maintain a more stable environment for healthy crop growth.
Energy-Efficient and Cost-Effective Cooling
Compared with mechanical refrigeration, a greenhouse wet pad cooling system does not rely on compressors or refrigerants. Its main components are water, a sump pump and exhaust fans, which can help reduce energy consumption and simplify routine maintenance. The 150mm-thick cellulose cooling pads use a cross-fluted structure to increase contact between air and water, improving evaporation efficiency. PVC distributor pipes spread water evenly across the pads, while return gutters and a sump tank enable continuous water circulation. This practical design supports stable cooling performance while making better use of water and energy.
Creating a Better Growing Environment
Excessive greenhouse heat can lead to plant stress, rapid transpiration, poor flowering and unstable growth. By lowering air temperature while increasing humidity in dry conditions, the greenhouse wet pad cooling system helps create a more suitable microclimate for crops. It is widely applicable to commercial vegetable greenhouses, flower and ornamental plant production, propagation facilities and nurseries. The same evaporative cooling principle can also be adapted for livestock housing and selected industrial or commercial spaces where effective heat management is required.
Complete Components for Reliable Operation
A complete cooling setup can include cellulose cooling pads, PVC water distribution pipes, aluminum deflectors, return gutters, sump pumps, water tanks and supporting aluminum structures. Designed as part of an integrated climate-control strategy, the system can work together with greenhouse ventilation and exhaust equipment to improve overall environmental management.
With more than 20 years of greenhouse industry experience, SHG Greenhouse Manufacturing Co., Ltd. provides practical cooling solutions for different greenhouse structures and growing conditions. Its engineering and manufacturing capabilities support reliable system integration for greenhouse builders and growers in global markets.
Structure, Materials and Technical Parameters
Pad Thickness | 150 mm |
Pad Material | Cellulose paper with anti-rot salts |
Water Distribution | PVC distributor pipe |
Support Structure | Extruded aluminum tube stringers |
Sump Tank | PVC with drain plug |
Cover | 3mm aluminum |
Installation Location | North wall |
Add：No. 50, Lane 100, Jiaqian Road, Nanxiang Town, Jiading District, Shanghai, China
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