A glass greenhouse is a specialized facility using
greenhouse glass as its transparent covering material, mainly used for growing high-value crops such as tomatoes, peppers, cucumbers, and lettuce. With a long service life and strong adaptability to various regions and climates, greenhouse glass has become the core of modern smart agricultural planting. It provides an optimal growth environment for plants, realizes off-season crop listing, and ensures consumers can enjoy fresh fruits and vegetables all year round. Among all global applications, the Netherlands has the most successful experience in greenhouse glass cultivation, with a history of hundreds of years. Today, we will explore the design, construction and unique advantages of
Dutch greenhouse glass.
Steel Structure: The Stable Foundation of Dutch Greenhouse Glass
The main structure of a Dutch greenhouse glass facility consists of columns, beams, longitudinal beams, surrounding maintenance beams, gutters, and herringbone beams. The steel structure mostly adopts hot-dip galvanized steel, which is corrosion-resistant and durable; some high-end greenhouses use hot-dip galvanized steel with plastic coating for better protection. For practical use, ordinary hot-dip galvanized steel on the market can fully meet the requirements. The key difference lies in the gutters: Dutch standard greenhouse glass uses aluminum alloy gutters instead of iron ones. Aluminum alloy gutters have excellent sealing performance, and their hollow structure forms a thermal insulation bridge, effectively reducing heat loss and ensuring the stability of the greenhouse environment.
The most distinctive feature of Dutch greenhouse glass is the use of
ultra-white diffuse reflection glass as the covering material, which determines the high efficiency of crop cultivation. This low-iron ultra-white glass is made of ultra-white quartz sand with iron content less than 150PPM, appearing white from the edge, unlike ordinary glass which shows green. The light transmittance of 4mm ultra-white low-iron greenhouse glass exceeds 91%, much higher than the 86% of ordinary glass, and after special treatment, it can reach more than 97.5%.
After tempering,
this greenhouse glass can withstand the impact of a 1040g steel ball falling from 100cm, with a self-explosion rate of less than three ten-thousandths—far lower than the national standard of three-thousandths for ordinary glass. Its spectral response ranges from 320-1100nm, with high reflectivity for 1200nm infrared light, and the visible light band (380-780nm) perfectly matches the light needed for plant photosynthesis.
The surface of Dutch greenhouse glass undergoes physical and chemical treatment to form uneven bumps, which cause
diffuse scattering when light passes through. Unlike direct light that dazzles workers and burns crop leaves and petals, scattered light is soft and uniform, penetrating deep into the middle and lower parts of crop canopies. This not only promotes uniform crop growth and reduces gray mold at the bottom but also improves photosynthesis efficiency, thereby increasing crop yield and quality by 20%-30% compared with traditional greenhouses. Additionally, the hydrophilic surface of the greenhouse glass has a self-cleaning function, avoiding water dripping and reducing maintenance costs.
Dutch greenhouse glass combines stable structure and high-performance covering material, setting a benchmark for global smart agriculture. Its scientific design and practical advantages fully demonstrate the value of high-quality greenhouse glass in modern agricultural planting, providing a reliable solution for efficient and sustainable crop cultivation worldwide.
