7 Best Polycarbonate Sheets for Greenhouses: Protect Your Plants with Durability

Greenhouses offer the perfect environment for nurturing plants, and choosing the right materials for construction is crucial. Polycarbonate sheets have become a preferred choice due to their durability, light transmission, and insulating properties.

To help you select the best for your greenhouse, here’s a comprehensive review of the top 7 polycarbonate sheets available in the market today.

Tips for Choosing Polycarbonate Sheets for Greenhouses

When selecting polycarbonate sheets for your greenhouse, consider the following tips to ensure you make an informed decision:

1. Thickness Matters

Opt for sheets with an appropriate thickness. Thicker sheets generally offer better insulation and durability, ensuring they can withstand weather conditions and impacts over time.

2. Light Transmission

Choose sheets that provide adequate light transmission for your plants. Different thicknesses and designs offer varying levels of light diffusion. Ensure the selected sheets offer optimal lighting for your plant growth.

3. UV Protection

Look for sheets with UV coatings or treatments. UV protection prevents the sheets from yellowing over time and protects your plants from harmful UV rays, ensuring their health and longevity.

4. Impact Resistance

Consider the resilience of the sheets against impacts. Sheets with higher impact resistance are less likely to break or shatter, ensuring longevity and safety for your greenhouse.

5. Insulation Properties

Evaluate the insulation properties of the sheets. Twinwall or multiwall designs provide better insulation, maintaining a stable environment for your plants in varying climates.

6. Size and Installation

Ensure the size of the sheets aligns with your greenhouse’s dimensions. Additionally, consider ease of installation; some sheets may be easier to install than others, especially for DIY projects.

7. Brand Reputation and Warranty

Research and consider reputable brands known for quality polycarbonate sheets. Check for warranties that cover against discoloration, breakage, or other defects to safeguard your investment.

8. Environmental Factors

Take into account the local climate and environmental conditions. Sheets designed for high UV areas or hail-prone regions might differ from those suited for milder climates.

9. Compatibility with Structure

Ensure compatibility with your greenhouse structure. Some sheets may require specific framing or support systems for installation, so check compatibility beforehand.

10. Maintenance Requirements

Consider the maintenance needs of the sheets. Some may require specific cleaning methods or periodic maintenance for optimal performance and longevity.

By considering these factors, you can narrow down your options and select polycarbonate sheets that best suit your greenhouse needs, ensuring a conducive environment for healthy plant growth.

Tips for Maintaining Polycarbonate Sheets in Greenhouses

Maintaining polycarbonate sheets is essential to ensure their longevity and optimal performance within your greenhouse. Here are some tips to help you keep them in excellent condition:

1. Regular Cleaning

• Gentle Cleaning: Use a mild soap or specialized polycarbonate cleaner with a soft sponge or cloth to remove dirt, dust, and residue. Avoid abrasive materials that could scratch the surface.

2. Avoid Harsh Chemicals

• Avoid Abrasive Cleaners: Harsh chemicals, alcohol-based cleaners, or ammonia can damage the surface of the polycarbonate sheets. Stick to recommended cleaners for safe maintenance.

3. Prevent Scratches

• Soft Cleaning Materials: Use only soft materials specifically designed for cleaning polycarbonate to prevent scratches on the surface. Rinse thoroughly after cleaning to remove any leftover debris.

4. Check for Damage

• Regular Inspection: Periodically inspect the sheets for any signs of damage, such as cracks, chips, or discoloration. Promptly address any issues to prevent further deterioration.

5. Snow and Debris Removal

• Gentle Removal: In snow-prone areas, gently remove accumulated snow to prevent excessive weight on the sheets. Also, clear any debris or leaves that might collect on the surface.

6. UV Protection

• UV-Coating Maintenance: If your sheets have UV protection coatings, ensure they remain effective. Over time, UV coatings might degrade, so consider reapplying UV protectants as recommended.

7. Sealant Inspection

• Check Seals and Edges: Inspect the seals and edges of the sheets periodically. Ensure they are properly sealed and free from any gaps to prevent water ingress or leaks.

8. Avoid Pressure Washing

• Gentle Methods: Avoid using pressure washers as the forceful spray can damage the sheets. Stick to gentle cleaning methods using low-pressure water for rinsing.

9. Protect from Chemicals

• Avoid Contact with Chemicals: Prevent contact with chemicals such as pesticides, fertilizers, or other potentially corrosive substances as they might cause damage or discoloration.

10. Follow Manufacturer Guidelines

• Adhere to Recommendations: Follow the manufacturer’s specific maintenance guidelines provided with the sheets for optimal care and maintenance practices.

By following these maintenance tips, you can ensure that your polycarbonate sheets remain in excellent condition, providing a conducive environment for plant growth while prolonging their lifespan within your greenhouse.

7 Best Polycarbonate Sheets for Greenhouses

1. AmeriLux MultiLite Polycarbonate Panel

Thickness: 8mm
Size: 4′ x 8′
Features: UV-coated, impact-resistant, lightweight
Price: $ – $$

The AmeriLux MultiLite panel stands out for its balance between cost and quality. With its UV coating and impact resistance, it provides excellent protection for your plants while allowing sufficient light transmission. Its lightweight nature makes installation hassle-free.

2. Tuftex PolyCarb Corrugated Panels

Thickness: 8mm
Size: 4′ x 8′
Features: Clear, easy to install, hail resistant
Price: $$

Tuftex PolyCarb panels are known for their clear visibility and easy installation process. The corrugated design enhances strength, making them resistant to hail damage. These sheets are perfect for DIY greenhouse projects.

3. SUNLITE Polycarbonate Clear Twinwall Roof Panel

Thickness: 6mm
Size: 2′ x 8′
Features: Twinwall design, high light transmission, weather-resistant
Price: $$ – $$$

The SUNLITE Twinwall panels offer superior insulation and weather resistance due to their twinwall construction. These sheets diffuse light evenly, reducing the risk of plant burn while maintaining a controlled climate inside the greenhouse.

4. Palram Sunlite Twinwall Polycarbonate Panels

Thickness: 16mm
Size: 4′ x 8′
Features: Thick, high impact resistance, heat-blocking
Price: $$$

Palram’s Sunlite panels, with their 16mm thickness, provide exceptional durability and impact resistance. They effectively block excessive heat, making them ideal for regions with intense sunlight, ensuring optimal plant growth conditions.

5. Greca Corrugated Polycarbonate Sheets

Thickness: 16mm
Size: 4′ x 12′
Features: Corrugated design, high strength, UV protection
Price: $$$

Greca’s Corrugated Sheets boast high strength due to their corrugated design. They offer excellent UV protection and durability, ensuring longevity and protection for your greenhouse.

6. Makrolon Polycarbonate Sheet

Thickness: 5mm
Size: 4′ x 8′
Features: High clarity, lightweight, scratch-resistant
Price: $$ – $$$

Makrolon polycarbonate sheets offer exceptional clarity, allowing maximum light transmission without compromising durability. Their scratch-resistant surface ensures a long-lasting clear view for years to come.

7. LEXAN Thermoclear Multiwall Polycarbonate Sheet

Thickness: 10mm
Size: 4′ x 12′
Features: Multiwall design, high impact strength, energy-efficient
Price: $$$

The LEXAN Thermoclear sheets feature a multiwall design that enhances their impact strength while providing energy-efficient insulation. They are an excellent choice for maintaining a stable environment within your greenhouse.

Important Note:

When selecting polycarbonate sheets for your greenhouse, ensure compatibility with the greenhouse structure and environmental conditions. Proper installation and maintenance are crucial for optimal performance and longevity of the sheets.

Making the right choice for your greenhouse’s polycarbonate sheets depends on various factors like climate, budget, and specific requirements. Whether it’s durability, light transmission, or insulation, these top seven options cover a range of features to suit your needs. Ensure you measure accurately and consider the environmental factors before making your selection.

Remember, investing in quality polycarbonate sheets not only protects your plants but also ensures the longevity and efficiency of your greenhouse for years to come.

Frequently Asked Questions about Polycarbonate Sheets for Greenhouses

Here are some commonly asked questions about using polycarbonate sheets in greenhouse construction:

1. Are polycarbonate sheets better than glass for greenhouses?

Polycarbonate sheets offer advantages over glass in terms of durability, insulation, and impact resistance. They provide better insulation, are lighter, and are less prone to breakage compared to glass.

2. What thickness of polycarbonate sheets is ideal for a greenhouse?

The ideal thickness depends on factors like climate, insulation needs, and structural requirements. Generally, 8mm to 16mm thicknesses are common for greenhouse applications, offering a balance between insulation and durability.

3. Do polycarbonate sheets provide UV protection for plants?

Yes, many polycarbonate sheets come with UV coatings or treatments that protect plants from harmful UV rays. These coatings also prevent the sheets from yellowing or degrading due to prolonged exposure to sunlight.

4. Can polycarbonate sheets withstand hail or heavy snow?

Polycarbonate sheets, especially those with higher thicknesses and impact resistance, can withstand hail and moderate snow loads. However, it’s advisable to clear heavy snow to prevent excessive weight on the greenhouse structure.

5. How long do polycarbonate sheets last in a greenhouse?

With proper maintenance and care, polycarbonate sheets can last anywhere from 10 to 25 years, depending on the quality of the sheets and environmental factors they’re exposed to.

6. Are twinwall or multiwall polycarbonate sheets better for insulation?

Twinwall and multiwall polycarbonate sheets provide superior insulation due to their multiple layers, trapping air between them. They offer better thermal efficiency compared to single-layer sheets.

7. Can I install polycarbonate sheets in an existing greenhouse structure?

Yes, polycarbonate sheets can typically be retrofitted into existing greenhouse structures. However, ensure compatibility with the framework and follow proper installation guidelines for best results.

8. Are there specific cleaning instructions for polycarbonate sheets?

Yes, it’s recommended to clean polycarbonate sheets using mild soap or specialized cleaners designed for polycarbonate surfaces. Avoid abrasive materials or harsh chemicals that could damage the sheets.

9. Do polycarbonate sheets come with warranties?

Many manufacturers offer warranties for their polycarbonate sheets against defects, discoloration, or breakage. Warranties may vary based on the brand and product, so check with the manufacturer for specific details.

10. Can polycarbonate sheets be used for curved greenhouse structures?

Yes, some polycarbonate sheets are flexible enough to be used in curved greenhouse designs. However, not all types may be suitable, so verify flexibility and compatibility before installation in curved structures.