01 Film Materials
Conventional Plastic Film (PE/PVC)
Replacement Cycle: Conventional PE or PVC film has a service life of approximately 6 months to 1 year. Due to the rapid decline in light transmittance and drip resistance in actual production, annual replacement is recommended.
Special Scenarios: For high-light crops (such as nightshade vegetables), prioritize replacing aging film to prevent light transmittance from falling below 70%, which can affect photosynthesis.
Functional Film (EVA/PO Film)
EVA Film: Offers excellent durability and is recommended for replacement every 2-3 years.
PO Film: Highly resistant to aging, with a service life of up to 2-3 years. Replacement is recommended when light transmittance drops below 80%.
PVC Calendered Film
Due to its susceptibility to aging and poor dust resistance, replacement is recommended every 1-2 years.
02 Hard Materials
Glass
Single/Double Glazing: Chemically stable, maintains a light transmittance above 91.5% over a long period of time. With normal maintenance, it can last 20-30 years, requiring only periodic cleaning or repairs.
Ultra-clear diffuse reflective tempered glass: Has a higher light transmittance (97.5%) and requires less frequent replacement, but requires regular crack inspection and sealing.
PC Sheet
Strongly impact-resistant, with a service life of 10-15 years. Replacement is required if yellowing, increased haze, or light transmittance drops below 60%.
03 Replacement Timing Criteria
Light Transmittance
Film should be replaced immediately if its light transmittance drops below 70%. High-light crops (such as tomatoes) require a light transmittance of ≥90%.
Glass’ light transmittance remains stable over time, requiring only surface cleaning every 2-3 years.
Physical Damage
Film tears exceeding 10% of the surface area, or cracks or delamination on hard materials (such as solar panels), should be replaced promptly.
Film surface powdering, brittleness, or a significant increase in haze (affecting scattered light) requires replacement.
Functional Degradation
Anti-fog film failure (severe condensation on the surface) and reduced nighttime temperature control capabilities of thermal insulation film require replacement.
04 Maintenance Tips to Extend Lifespan
Regular Cleaning: Rinse film monthly and clean glass with a high-pressure water jet quarterly to minimize light transmittance loss by 10%-20%.
Avoid Mechanical Damage: Wrap sharp surfaces with soft cloth to prevent scratches on the film or solar panels.
Extreme Weather Preparedness: Clear snow promptly in winter and cover with shade nets during high temperatures in summer to reduce material aging.
General Recommendation: Replace ordinary plastic film every 1-2 years, functional film every 2-3 years. Hard materials (glass, solar panels) can be used for extended periods but require regular maintenance.
The diffuse glass and AR-coated diffuse glass produced by Yuhua have cooperated with many large commercial greenhouses in agriculture, horticulture, nurseries and experiments. We have cooperated with large greenhouse project companies such as Havecon, Van Der Hoeven, Kubo, etc. for many years. Yuhua greenhouse glass has a light transmittance of up to 99%, and haze 5/10/20/30/50/70/75 greenhouse diffuse glass is available!
Need more detailed information or a solution of greenhouse glass? Need guidance on how to choose the right glass for your greenhouse?
Consult online customer service, leave us a message or send us an email!
