Overwinter Greenhouse Plastic — Clear, Better Tear Strength, Higher Winter Light Transmission
• Single-season clear overwinter film
• Better tear strength for winter growing
• Helps reduce heat loss in colder months
• Higher winter light transmission
• Also referred to as clear overwintering film
• Cut to length per customer requirement
Available Sizes:
Clear Overwinter Greenhouse Plastic for Winter Growing
Clear Overwinter Greenhouse Plastic, also called clear overwintering film, is a 5-layer co-extruded greenhouse film designed for seasonal plant protection during colder months. It helps reduce heat loss, protect crops from harsh winter conditions, and maintain strong natural light transmission inside the structure.
This clear overwinter film is stabilized for single-season use and offers better tear strength for hoop houses, greenhouses, and temporary winter covers. It can be cut to length for the structure, helping growers reduce gaps, improve coverage, and protect crops during winter production.
Use clear overwinter plastic when you want a simple winter cover that helps protect plants from wind, cold, and seasonal weather while still allowing useful sunlight to reach the crop.
Seasonal Protection for Winter Crops
Winter growing conditions can expose plants to cold air, wind, frost, and rapid temperature changes. Overwinter plastic helps create a more protected growing space by covering the structure and reducing direct exposure to harsh seasonal conditions.
This makes it useful for overwintering vegetables, ornamentals, perennials, nursery crops, and other plants that need protection during colder periods.
Clear Film for Strong Winter Light Transmission
The clear version is useful when growers want to maintain strong light penetration during the winter season. It allows natural sunlight into the greenhouse while still helping reduce heat loss from the covered structure.
For growers who need softer light or more light diffusion, overwinter plastic is also available in a white / diffused option.
Better Tear Strength for Seasonal Covers
Overwinter Plastic is designed with better tear strength to help it hold up through seasonal weather, installation tension, and normal winter greenhouse use. It is a practical choice for temporary and seasonal structures that need protection without the cost of a long-term greenhouse cover.
Cut-to-Length for Greenhouses and Hoop Houses
Overwinter Plastic is available in custom cut-to-length options so growers can match the cover to the structure. A better fit helps reduce waste, improve installation, and limit gaps that can allow heat loss or wind exposure.
When to Use Overwinter Plastic
- Seasonal winter crop protection
- Temporary greenhouse or hoop-house covers
- Nursery and ornamental crop protection
- Cold-weather growing and season extension
- Structures that need a single-season protective film
✓ Quality Guarantee
We stand behind our products with comprehensive quality assurance and customer support.
Sizes and Prices
Standard rolls, cut to order. Need a different length? Use the CUSTOM option in the size selector at the top of the page.
| Size | Thickness | Weight | Availability | Price |
|---|---|---|---|---|
| 14 ft × 75 ft | 5 mil | 25.80 lbs | In stock | $81.67 |
| 14 ft × 110 ft | 5 mil | 37.84 lbs | In stock | $119.78 |
| 16 ft × 75 ft | 5 mil | 29.49 lbs | In stock | $93.34 |
| 16 ft × 110 ft | 5 mil | 43.25 lbs | In stock | $136.89 |
| 21 ft × 75 ft | 5 mil | 38.70 lbs | In stock | $122.50 |
| 21 ft × 110 ft | 5 mil | 56.76 lbs | In stock | $179.67 |
| 24 ft × 75 ft | 5 mil | 44.23 lbs | In stock | $140.00 |
| 24 ft × 110 ft | 5 mil | 64.87 lbs | In stock | $205.34 |
| 28 ft × 75 ft | 5 mil | 51.60 lbs | In stock | $163.34 |
| 28 ft × 110 ft | 5 mil | 75.69 lbs | In stock | $239.56 |
| 32 ft × 75 ft | 5 mil | 58.98 lbs | In stock | $186.67 |
| 32 ft × 110 ft | 5 mil | 86.50 lbs | In stock | $273.79 |
| 42 ft × 75 ft | 5 mil | 77.41 lbs | In stock | $245.01 |
| 42 ft × 110 ft | 5 mil | 113.53 lbs | In stock | $359.34 |
| 48 ft × 75 ft | 5 mil | 88.46 lbs | In stock | $280.01 |
| 48 ft × 110 ft | 5 mil | 129.75 lbs | In stock | $410.68 |
Technical Specifications
| Film Construction | 5-layer co-extruded overwinter greenhouse film |
| Thickness | 5 mil |
| Available Widths | 14' Wide, 16' Wide, 21' Wide, 24' Wide, 28' Wide, 32' Wide, 42' Wide, 48' Wide |
| Length | According to customer order |
| UV Resistance | 1 year at 120 KLy |
General Information
Product Properties
| Property | Units | 3 mil | 4 mil | 5 mil |
|---|---|---|---|---|
| Tensile Strength at break [MD] | MPa | 24 | 24 | 24 |
| Tensile Strength at break [TD] | MPa | 24 | 24 | 24 |
| Elongation at break [MD] | % | 700 | 700 | 700 |
| Elongation at break [TD] | % | 700 | 700 | 700 |
| Tear resistance [MD] | gr/mil | 250 | 250 | 250 |
| Tear resistance [TD] | gr/mil | 250 | 250 | 250 |
| Falling Dart Impact | gr. | 500 | 600 | 700 |
| Total light transmission | % | 90 | 90 | 90 |
| Light diffusion | % | 18 | 20 | 20 |
| Thermicity | % | 50 | 50 | 50 |
| Thickness average tolerance | % | ±5% on nominal | ||
Use and Limitations
Exposure to chemicals
Exposure of greenhouse films to severe chemical conditions has an adverse effect on the lifetime of the film. Avoid excessive use of agrochemicals such as pesticides, herbicides, fungicides and fertilizers. Take measures to prevent direct contact of chemicals to the film. Ensure that metal structures are galvanized and are free from corrosion. When wooden structure parts are used, avoid contact of the film with resin, oil, petroleum or volatile preservatives. Prevent contact of the film with PVC accessories. Chemicals containing halogens, sulfur, copper, iron, are known to accelerate the degradation of greenhouse films.
Specifically, if the following elements are found at levels higher than specified, the films are excluded from this warranty:
| Element | Maximum level |
|---|---|
| Sulfur | 100 ppm |
| Chlorine | 10 ppm |
| Iron | 50 ppm |
Overheating
Overheating of the film has an adverse effect on its lifetime. Hot air should be directed away from the film.
Disinfection chemical use
When chemicals are used to disinfect the soil, the treated soil must be covered with a film for a minimum of three weeks. After the film is removed, the greenhouse should be ventilated.
You can download the full specification in PDF format.
Installation Guidelines
Before Installation:
- Check weather conditions - install on calm, dry day
- Ensure frame is smooth with no sharp edges
- Clean frame of debris and old material
- Have all fastening materials ready
Installation Steps:
- Unroll material carefully to avoid wrinkles
- Allow adequate overlap on all sides
- Start fastening from one end, working systematically
- Maintain proper tension - firm but not over-tight
- Secure with appropriate fasteners
- Trim excess material with sharp knife
Best Practices:
- Install during moderate temperatures
- Use proper fastening systems
- Avoid over-tensioning in cold weather
- Allow for thermal expansion
- Check and retighten fasteners seasonally
⚠️ Important
Proper installation is crucial for optimal performance.
Follow guidelines or consult with our experts.
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