Sawtooth Multi-Span Film Greenhouse with Cooling Pad-Fan Cooling System

Product Description

Sawtooth Multi-Span Film Greenhouse with Cooling Pad-Fan Cooling System 

 

Product Overview

This sawtooth multi-span film greenhouse combines a sawtooth roof structure with an evaporative cooling pad and exhaust fan system installed on opposite gable walls, drawing outside air through wet cooling pads to significantly lower interior temperature during hot seasons. Recommended for hot and humid or hot and dry climates where natural ventilation alone cannot maintain optimal growing temperatures - commonly used for year-round tomato, pepper, and leafy green production.
 

2. Specifications

Roofing Shape	Sawtooth Roof
Span Width	8m
Column Space	4m
Gutter Height	4-6m
Top Height	6-8m
Cover Material	0.15mm PO film (top and sides)
Frame Material	Hot-dip galvanized steel
Cooling System	Evaporative cooling pad + exhaust fan, gable-wall mounted
Wind / Snow Load	0.5 kN/m²
Light Transmittance	More than 80%
Systems Available	Heating, cooling, irrigation, ventilation, shading, automation

Key Features

• Evaporative pad-fan cooling system for effective temperature control in hot climates
• Sawtooth roof structure supports natural airflow alongside mechanical cooling
• High light transmittance - more than 90% with glass or film covering options
• Hot-dip galvanized steel frame for corrosion resistance and structural longevity
• Automated climate control available: heating, ventilation, shading, and irrigation with optional temperature sensors
• Engineered to withstand wind and snow loads of 0.5 kN/m² for safe operation across varied site conditions
• Customizable length (60-200m) to fit specific site requirements
• OEM/ODM services available with dedicated R&D engineering support

 

3. Product Showcase

 

4. System and Equipment
Heating System //Cooling System // Irrigation System // Shading System
 

 

FAQ

Q: How is the pad-fan system sized for my greenhouse?
A: We calculate the required fan capacity and pad wall area based on your greenhouse floor area, local peak temperature and humidity, and desired indoor temperature reduction.
Q: How often do the cooling pads need replacement?
A: Cellulose cooling pads typically last 5 years with proper water quality management before requiring replacement.
Q: Can the fans be automated with temperature sensors?
A: Yes, we offer automatic controllers that turn fans on/off based on real-time temperature and humidity readings, reducing the need for manual operation.
Q: Does the pad-fan system work well in humid climates?
A: Evaporative cooling is most effective in low-humidity climates; in humid regions, cooling capacity is reduced, so we recommend combining it with shade netting or natural ventilation for best results.
Q: Can the structure handle heavy wind or snow exposure?
A: Yes - the galvanized steel frame is rated for 0.5 kN/m² wind and snow load, and can be adjusted for stronger regional exposure on request.
CTA: Struggling with high greenhouse temperatures? Send us your local peak summer temperature and humidity levels, and we'll design a pad-fan cooling system sized specifically for your greenhouse.