GREENHOUSE

Greenhouse Film

1. Optimal Film Selection CriteriaParameterIdeal SpecificationBenefitThickness0.10–0.15mmBalance of light transmission & durabilityLight Diffusion30–50%Reduces leaf burn, promotes even growthUV Stabilization3–5 year lifespanExtended service in high-sun regionsAnti-Drip CoatingHydrophilic additivePrevents disease-causing water droplets
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2. Climate Control Advantages

✔ Temperature Regulation

Day: Maintains 25–30°C via IR-blocking (≤50% IR transmission)
Night: 3–5°C warmer than outdoor (thermal retention)

✔ Humidity Management

Reduces water consumption 30% vs. open-field
Prevents condensation (≥80% anti-fog efficiency)

3. Crop-Specific Recommendations

Vegetable Type	Film Type	Special Feature
Leafy greens	Clear film (92% PAR transmittance)	Maximizes photosynthesis
Tomatoes	Diffused light film	Prevents fruit sunscald
Cucumbers	Anti-condensation film	Reduces powdery mildew risk
Peppers	UV-blocking film	Enhances anthocyanin production

4. Installation Best Practices

Structure Preparation

Smooth all sharp edges on framework
Install insect nets prior to film

Film Deployment

Stretch to 10–15% tension (prevents wind damage)
Use EVA-backed clamps for secure attachment

Ventilation Design

Roof vents = 15–20% of floor area
Side vents = 1m height for hot air escape

5. Economic Analysis

Factor	Greenhouse Film	Glass Greenhouse
Initial Cost	$2–5/m²	$50–100/m²
Energy Savings	40% less heating	Baseline
Payback Period	1–2 seasons	5–8 years

Maintenance Tips:
⚠ Monthly cleaning (maintains 95% light transmission)
⚠ Pre-winter inspection (patch holes >3cm diameter)
⚠ Annual UV coating check (use radiometer)

Keywords: Agricultural plastic film, Protected cropping, Microclimate control, PAR optimization

Custom Solutions Available:
→ Photoselective films (e.g., red spectrum for faster maturation)
→ Double-layer inflatable systems (for -20°C climates)
→ Integrated solar panels (5% light blockage)

(Complies with ISO 13655 (light transmission) and EU 10/2011 (food-safe materials))

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