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KINGSTAR GLASS
Greenhouse Glass | Horticultural Glass Solutions for Professional Growing from KINGSTAR BUILDING GLASS
KINGSTAR BUILDING GLASS Greenhouse Glass is a comprehensive range of high-performance horticultural glass solutions engineered specifically for professional agricultural and commercial growing environments. Unlike standard building glass, horticultural glass is designed to maximize photosynthetically active radiation (PAR) transmission while maintaining thermal stability, reducing plant stress, and supporting consistent year-round crop yields. Available in clear float, low-iron, diffused, and an
Glass is a classic and beautiful glazing option. Many gardeners select glass greenhouses as their perfect choice due to its aesthetic appeal. It has been the traditional greenhouse building glazing material. It permits the highest amount of light penetration.
Thickness : 3.2mm & 4mm
Standard Size : Greenhouse glass is available in three standard sizes, 610 x 610mm, 610 x 460mm, and 740 x 1420mm.
Solar glass is part of the building-integrated photovoltaics category and is designed to replace conventional building materials in parts such as roofs, skylights, facades, and windows to efficiently generate power.
What is Greenhouse Glass?
Greenhouse glass—also referred to as horticultural glass—is flat or processed glass panels designed to maximize natural light transmission while protecting plants from environmental fluctuations. Compared with plastic alternatives, glass offers superior durability, consistent optical performance that does not degrade significantly over time, and a long service life exceeding 15 years—making it the preferred choice for permanent and large-scale greenhouse structures.
High-quality greenhouse glass typically delivers light transmittance above 85%, supporting photosynthesis while maintaining a controlled internal climate. From a structural standpoint, glass panels provide better resistance to UV exposure, temperature variation, and chemical cleaning compared with polymer materials—reducing replacement frequency and long-term maintenance costs for greenhouse operators.
Types of Greenhouse Glass
KINGSTAR BUILDING GLASS offers a complete portfolio of greenhouse glass types to match different crop requirements, climate conditions, and project budgets:
Light Transmission and Optical Performance
Light quality is just as important as light quantity in greenhouse cultivation. Diffused greenhouse glass helps distribute sunlight more evenly across growing areas, reducing shadowing and preventing localized overheating—creating a more uniform growing environment especially beneficial for leafy greens, flowers, and sensitive crops.
Optical Performance Comparison
Measurements based on 4mm glass thickness. PAR = Photosynthetically Active Radiation (400-700 nm). Haze factor indicates light scattering—higher values provide more diffusion.
Understanding Key Optical Metrics
- Light Transmittance (VLT): The percentage of visible light passing through the glass. Higher values mean more natural light for photosynthesis.
- PAR Transmission: Transmission of photosynthetically active radiation (400-700 nm)—the light spectrum plants actually use for growth.
- Haze Factor: The percentage of light scattered by the glass surface. Clear glass has <5% haze; diffused glass ranges from 20% to 85%. Higher haze creates more uniform light distribution and better canopy penetration.
- Hemispherical Transmission: The integrated light transmission value for all angles of incidence—a more meaningful parameter for greenhouse performance than direct transmission alone.
Anti-Reflective (AR) Coating Benefits
Standard soda-lime glass reflects approximately 8% of incident radiation at each air-glass interface. Anti-reflective coatings—typically porous silica or multi-layer interference coatings—reduce surface reflectance to below 1%, recovering this energy into the transmission budget. Combined with low-iron glass, total PAR transmission can exceed 97%.
Key benefits of AR-coated greenhouse glass:
- +6-8% light transmission compared to uncoated glass
- 5-7 days shorter growing cycles for seedlings
- 15% increase in flower color saturation (e.g., roses)
- Higher fruit sweetness due to improved light spectrum
Safety and Structural Considerations
For commercial and large-scale greenhouse installations, safety standards are critical. Tempered greenhouse glass provides higher impact resistance and safer breakage behavior, reducing risk during installation and operation. KINGSTAR BUILDING GLASS tempered greenhouse glass offers:
- Impact resistance 3x that of standard glass
- Withstands hailstones ≤ 2 cm in diameter
- Withstands strong winds ≤ Force 8
- Temperature stability from -30°C to 70°C without deformation
- Breaks into small, blunt-angled pieces—no sharp edges
Laminated configurations may also be specified in areas exposed to strong winds or public access.
Technical Specifications
Applications
- Commercial Production Greenhouses: Large-scale vegetable, fruit, and flower cultivation
- High-Value Crop Cultivation: Orchids, tissue culture seedlings, medicinal plants
- Research and Botanical Greenhouses: Controlled environment agriculture, plant science
- Retail Garden Centers: Plant display and nursery operations
- Climate-Controlled Greenhouses: Year-round production in extreme climates
- Roof Glazing: Overhead panels requiring safety glass
- Side Walls: Perimeter glazing with optional thermal insulation
Why Choose KINGSTAR BUILDING GLASS Greenhouse Glass?
- Complete Product Portfolio: Clear float, low-iron, diffused, and AR-coated options—all from a single supplier.
- Superior Optical Performance: Light transmission from 89% to 97.5%, with PAR transmission exceeding 96% on premium products.
- Tempered for Safety: Every panel can be fully tempered to EN12150 standards, providing 3x impact resistance and safe breakage behavior.
- Customizable Solutions: Tailored haze levels (20-85%), custom sizes, and processing options to match specific crop and climate requirements.
- International Standards Compliance: Products meet EN12150, EN12600, ANSI Z97.1, CE, and SGCC certification requirements.
- 10 Years of Industry Expertise: With a decade of dedicated experience in architectural glass manufacturing and export, KINGSTAR BUILDING GLASS has supplied greenhouse glass solutions to commercial growers, greenhouse developers, and agricultural projects across Europe, North America, the Middle East, and Southeast Asia. Our technical team understands the specific optical and structural requirements of different crops and climate zones, providing tailored recommendations for every project.
- Quality Assurance: Strict quality control from raw material selection to final packaging—consistent dimensions, reliable processing, and smooth installation.
- Long Service Life: Average lifespan exceeding 15 years—more than seven times that of plastic film (1-2 years), reducing replacement costs by over 3x.
Looking to maximize your greenhouse yield with the right glass solution? Our technical team can provide optical performance simulations, crop-specific recommendations, and a tailored quotation based on your climate, crop type, and project budget. Contact us to discuss how KINGSTAR BUILDING GLASS greenhouse glass can help you achieve higher yields, better crop quality, and lower operating costs.
Frequently Asked Questions (FAQ)
Q1: What is the difference between clear float glass, low-iron glass, and diffused glass for greenhouses?
A: Clear float glass (89-91% transmission) is the standard, cost-effective option for basic greenhouses. Low-iron glass (>91% transmission) removes the green tint caused by iron content, delivering a pure, natural light spectrum that enhances flower color and fruit sweetness—ideal for high-value crops like orchids and tissue culture seedlings. Diffused glass (haze 20-85%) scatters light evenly across the growing area, eliminating hotspots and shadowing while improving canopy penetration. For maximum performance, low-iron glass with anti-reflective coating can achieve 96.5-97.5% transmission.
Q2: What light transmission levels can KINGSTAR BUILDING GLASS greenhouse glass achieve?
A: Our greenhouse glass portfolio offers transmission from 89% (clear float) up to 97.5% (low-iron with double-sided AR coating). Standard low-iron glass delivers >91% transmission. Diffused glass typically provides 88-91% transmission with haze options from 20% to 85%. With anti-reflective coating, transmission increases by 6-8% compared to uncoated glass. All optical data can be verified according to NEN 2675:2018 standards.
Q3: Is greenhouse glass required to be tempered and what safety standards apply?
A: For commercial and large-scale greenhouse installations, tempered glass is strongly recommended—and often required by local building codes—especially for roof and overhead glazing. KINGSTAR BUILDING GLASS tempered greenhouse glass provides impact resistance 3x that of standard glass, withstands hailstones ≤2cm and winds ≤Force 8, and breaks into small, blunt-angled pieces for safety. Our products comply with EN12150, EN12600, ANSI Z97.1, AS/NZS 2208, and CE standards. Greenhouse structures also comply with EN 13031-1 design and construction standards.
Kingstar Building glass: www.kingstar-glass.com
Kinstar Glassware (Professional Glassware & Kitchen Storage): www.kingstarliving.com
Kingstar Building glass:
Email: eric@kingstar-glass.com
Kingstar Glassware
(Professional Glassware & Kitchen Storage):
Email: info@kingstar-glass.com
Address: NO.101 SHENZHEN ROAD, QINGDAO, CHINA
© 2022 Qingdao Kingstar Glass Co., Ltd . All rights reserved Site Map | Technical Support:weidongli
Building glass:
Wechat/Whatsapp: 008618562697682
Email: eric@kingstar-glass.com
Glassware please visit: www.kingstarliving.com
Wechat/Whatsapp: 008615063091883
Email: info@kingstar-glass.com
Address: NO.101 SHENZHEN ROAD, QINGDAO, CHINA
© 2022 Qingdao Kingstar Glass Co., Ltd . All rights reserved Site Map
