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Fire Resistant Clear Transparent PC Embossed Sun Sheets Solid Polycarbonate Roof Placas De Policarbonato Placas De Policarbonato polycarbonate solid sheet for kuwait market
Polycarbonate Greenhouses: A Comprehensive Introduction
Polycarbonate greenhouses, featuring polycarbonate (PC) sheets as their primary covering material, are widely recognized in modern agriculture and horticulture for their outstanding performance and versatility. Below is a detailed overview of their core attributes, design elements, and applications.
1. Structural Characteristics
Polycarbonate greenhouses typically adopt two main structural designs to balance stability, functionality, and aesthetics:
Venlo-type Structure: A popular choice for large-scale commercial use, characterized by a multi-span, multi-roof layout. It offers excellent space utilization and is highly compatible with advanced environmental control systems.
Arch-type Structure: More common in small to medium-sized setups, its curved roof design enhances snow and rain drainage while simplifying construction.
The main structural components—including columns, purlins, side rails, arch frames, cable trusses, and gutters—are usually made of high-quality carbon steel (complying with the Q235 national standard). All steel parts and fasteners undergo hot-dip galvanization, ensuring strong corrosion resistance and an expected structural lifespan of over 20 years.
2. Key Properties of Polycarbonate (PC) Sheets
The performance of polycarbonate greenhouses largely depends on the superior characteristics of PC sheets:
Exceptional Light Transmittance: PC sheets achieve a light transmittance of 80%–90%, comparable to glass. With a UV-protective coating, they resist yellowing, fogging, or reduced transparency even after long-term exposure to sunlight—transmittance loss is typically less than 10% after a decade.
High Impact Resistance: Their impact strength is 250–300 times that of ordinary glass, 30 times that of acrylic sheets of the same thickness, and 2–20 times that of tempered glass. This "unbreakable glass" quality effectively withstands hail, strong winds, and accidental impacts.
UV Protection & Anti-Condensation: One side of the PC sheet is coated with UV inhibitors to block harmful ultraviolet radiation, protecting plants and internal materials from damage. The other side features an anti-condensation treatment, preventing water droplets from forming and dripping onto crops (which could cause disease).
Lightweight: With a density only half that of glass, PC sheets reduce transportation, handling, and installation costs. They also minimize the load on the greenhouse’s support framework, lowering structural material expenses.
Flame Retardancy: Classified as Grade B1 (flammability rating for difficult-to-ignite materials), PC sheets have a ignition point of 580°C. They self-extinguish when removed from the flame and do not release toxic gases during combustion, enhancing fire safety.
Flexibility: PC sheets can be cold-formed or heat-formed on-site according to design plans (e.g., into arches or semi-circular roofs). The minimum bending radius is 175 times the sheet thickness, allowing for diverse architectural shapes.
Thermal Insulation: PC sheets have a much lower thermal conductivity than glass and other plastics. Their insulation efficiency is approximately 200 times higher than glass and 8 times higher than ordinary plastic films, maintaining stable indoor temperatures (warmer in winter, cooler in summer) and reducing energy consumption.
3. Supporting Equipment
To achieve precise environmental control, polycarbonate greenhouses are often equipped with advanced systems:
Environmental Monitoring & Automation: Sensors for temperature, humidity, CO₂ concentration, and light intensity collect real-time data. An intelligent control system adjusts equipment automatically based on preset thresholds for crop needs.
Ventilation Systems: Combined natural ventilation (sidewall and ridge vents) and mechanical ventilation (exhaust fans, circulation fans) ensure air circulation, regulate temperature, and reduce humidity.
Shading & Insulation: Internal/external shading nets block excess sunlight in summer, while thermal screens retain heat in winter.
Cooling & Heating: Evaporative cooling pads (paired with fans) lower temperatures in hot weather, and infrared heaters or hot water pipes provide warmth in cold conditions.
Irrigation & Fertilization: Drip irrigation, spray irrigation, or hydroponic systems deliver water and nutrients efficiently, synchronized with environmental controls for optimal crop growth.
4. Applications
Polycarbonate greenhouses are highly versatile, suitable for multiple scenarios beyond traditional farming:
High-Efficiency Cultivation: Growing fruits (strawberries, grapes, dragon fruit), vegetables (tomatoes, cucumbers, lettuce), flowers (phalaenopsis, roses, tulips), and Chinese medicinal herbs—enabling off-season production and extending growing cycles.
Eco-Tourism & Education: Serving as eco-restaurants, botanical gardens, or agricultural exhibition halls, combining horticulture with sightseeing and science popularization.
Scientific Research: Providing a stable, controllable environment for crop breeding, pest control studies, and climate adaptation experiments.
Specialized Breeding: Supporting high-value aquaculture (e.g., ornamental fish) or poultry farming, with environmental controls tailored to animal needs.
In summary, polycarbonate greenhouses excel in durability, energy efficiency, and adaptability, making them a preferred choice for modern agricultural production, research, and leisure applications worldwide.
Characteristics
Unit
Data
Thickness
mm
4
6
8
10
Weight
kg/㎡
0.9
1.3
1.5
1.7
Minimum radius for cold bending arches
mm
700
1050
1400
1750
Standard width
mm
2100
2100
2100
2100
Standard length
mm
No Limited
Light transmission
Clear
%
82
81
80
80
Grass green
%
56
50
44
42
Lake blue
%
55
49
45
43
Bronze
%
43
36
33
29
White
%
42
35
33
29
Blue
%
35
25
20
16
Heat transfer coefficient K value
W/(㎡.k)
3.6
3.5
3.2
3.1
Weighted sound reduction index
db
12
15
15
19
Drop hammer impact
Pass
Coefficient of thermal expansion
mm/m.℃
0.065
Flame retardant level
B1
Service temperature
℃
minus 40~plus 120
Company Profile
Certifications
FAQ
1.Whats the quality assurance you provided and how do you control quality ? 1)Established a procedure to check products at all stages of the manufacturing process;Besides, we also developed a procedure which identifies the inspection and test status of all items at all stages of the manufacturing process.
2)100% inspection in assembly lines.
2.How many different kinds of PC sheet you can product? There are the following products: Glittering Polycarbonate Sheet,Multi-wall Structure Polycarbonate Sheet,Greenhouse Polycarbonate Sheet, General Polycarbonate Solid Sheet,Advertising Polycarbonate Sheet, Polycarbonate Embossed Sheet, Polycarbonate Frosted Sheet, Soundproof Polycarbonate Sheet, Greenhouse Polycarbonate Sheet etc.
3.We are in very high temperature country, twin wall polypropylene sheet can support? A: Yes, Polycarbonate sheet Temperature Resistance can be:40 ~+120 degree centigrade
4.Do you take special orders ? Yes , We accept customized products.
5. How to identify the UV side of the sheet? A: The UV side is the side protected with the printed masking film. To avoid installing the sheet at the wrong side which will void the warranty, please ensure only to remove the masking film after the sheet has been installed.
6. How do I know that a twin wall polypropylene sheet has UV layer? A: You can’t see the UV layer with the naked eyes. A laboratory test is required to prove this. Some international labs have this facility. Usually UV side layer will more thicker than the down side.
Polycarbonate hollow sheet is made of polycarbonate (referred to as PC) material at high temperature. It has excellent properties such as heat preservation, flame retardant, UV protection, wind and rain resistance, light weight, sturdy and durable, and good aging resistance. The PC hollow sheet produced by our company is a high-quality sheet with a 10-year warranty. It is mainly used for the construction of large-scale projects such as canopy, carport, small flower house construction, highway noise barrier, and greenhouse .Our company's products can provide a variety of sheet colors, such as transparent, milky white, grass green, lake blue, mountain blue, brown, dark brown, etc., as well as custom-made sheet size and thickness customization. Welcome new and old customers to come to the store to consult and purchase our company's products.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2014
Total Annual:
5000000-7000000
Employee Number:
>98
Ecer Certification：
Verified Supplier
Polygao Plastic Company is the leading polycarbonate sheet manufacture in china with 21 years experience,which is located in Foshan city near by Guangzhou airport,Polygao is an enterprise engaged in the research and development, production, processing and sales of polycarbonate ... Polygao Plastic Company is the leading polycarbonate sheet manufacture in china with 21 years experience,which is located in Foshan city near by Guangzhou airport,Polygao is an enterprise engaged in the research and development, production, processing and sales of polycarbonate ...
