Greenhouse Plastic: High-Tech Polyethylene Film
The greenhouse polyethylene film used in our structures is designed with innovative 8-layer technology—ideal for 7.2 mil double poly coverings—delivering outstanding performance to maximize light, protect crops, and extend greenhouse lifespan.
Exclusively available in Canada.
EVO AC® – The Longest-Lasting Anti-Drip Film on the Market
Developed with an exclusive 8-layer technology, EVO AC® is a greenhouse polyethylene film offering unmatched anti-drip performance—even at very low temperatures or on flatter roof slopes.
Key Benefits:
Industry’s most durable anti-drip film
No mist formation at dawn or dusk
More light inside the greenhouse, even in challenging conditions
Remains effective at very low temperatures
Suitable for low-slope roofs (< 30°)
Multi-year use without performance loss
Thanks to its nanotech surface layer, EVO AC® maintains its anti-drip effect for several years, helping prevent yield loss and fungal diseases caused by excess humidity.
EVO2 AC® – Patented Technology for Double Poly Greenhouses
EVO2 AC® is a unique innovation from Plastika Kritis. This 8-layer film separates into two during installation through an air-inflation process, making the double-poly covering installation faster and easier.
Once separated:
Outer film: Transparent, highly durable, maximizes light transmission
Inner film: Thermo-regulating, integrated with EVO AC® technology, available in clear or diffused options depending on needs
Advantages:
Faster, safer, and more cost-effective installation
Optimized light and thermal performance
Designed for professional growers seeking durability and energy efficiency
Discover Our Greenhouse Polyethylene Film Supplier
A Structure + Film Combination Designed to Last
At Harnois, we believe the longevity of a greenhouse polyethylene film doesn’t depend solely on the film’s quality but also on the structure it’s installed on. That’s why our greenhouses are built with oval-shaped arches—a geometry that significantly reduces premature wear on the polyethylene film.
Why it matters:
Oval arches allow the film to slide without excessive friction, even under wind or snow
Unlike square or sharp-cornered tubing, there are no stress points or snagging areas that could damage the film over time
Result: Longer film life and fewer premature replacements
Combined with high-tech films like EVO AC® or EVO2 AC®, your Harnois greenhouse becomes a long-term, high-performance growing solution.
Why Choose Polyethylene Film for Your Greenhouse?
Excellent light transmission (90–91%)
Long-lasting anti-drip treatment
Efficient thermal insulation
No mist formation
Adapts to low-slope roofs
Increased durability
Cost-Effective Solution
Greenhouse polyethylene film is not only economical but also supports energy efficiency by maintaining stable temperatures. Its durability and low maintenance needs make it an eco-friendly option that limits replacements and supports sustainable farming.
Personalized Support
At Harnois, we work closely with every grower to select the greenhouse polyethylene film best suited to their crops and local climate. Our experts provide guidance and tailored recommendations to ensure optimal performance for your greenhouse.
Technology That Evolves With You
Harnois polyethylene solutions are modular and can be upgraded as technologies advance or your crop needs evolve. Our coverings are designed to adapt and deliver top performance year after year.
When to Replace Your Greenhouse Polyethylene Film
Replacement timing depends on several factors:
Weather-related wear
Declining light transmission
Surface treatment degradation (anti-drip, anti-UV)
Changing crop requirements
However, with the latest generation of greenhouse polyethylene films from Plastika Kritis, service life is extended and performance remains high over a longer period.