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What to Know Before Buying Polycarbonate Sheets | Jeewa Plastic

May 19, 2025

When it comes to choosing materials for construction, greenhouse projects, or DIY endeavors, polycarbonate sheets are a popular choice due to their durability, strength, and versatility. However, for first-time buyers and contractors, purchasing polycarbonate sheets can be overwhelming due to the many factors that influence their performance and suitability for different applications.

At Jeewa Plastic, we provide high-quality polycarbonate sheets that are ideal for a variety of applications, from greenhouse roofing to signage and more. In this guide, we’ll walk you through essential things to consider before buying polycarbonate sheets, common mistakes to avoid, and tips for making the right choice for your project.

1. Types of Polycarbonate Sheets

Polycarbonate sheets come in different types and thicknesses, each suited for specific applications. Understanding the differences will help you make the best choice for your project:

  • Solid Polycarbonate Sheets: These sheets offer excellent strength and are often used in applications where durability and clarity are important, such as windows, skylights, and protective barriers. They provide high impact resistance and can be used for both indoor and outdoor applications.
  • Corrugated Polycarbonate Sheets: These are commonly used for greenhouses or roofing because their ridged surface adds strength and rigidity. They also provide excellent light diffusion while protecting against UV rays.
  • Multiwall Polycarbonate Sheets: These sheets consist of multiple layers of polycarbonate that provide extra insulation, making them ideal for greenhouses, patios, and skylights. They help retain heat while allowing natural light to pass through.

2. Key Considerations Before Buying Polycarbonate Sheets

Before making your purchase, here are a few essential factors to consider:

  • Purpose and Application: Determine the specific use of your polycarbonate sheets. For example, are you using them for greenhouse roofing, skylights, or signage? Understanding your project’s needs will help you select the right type and thickness of the sheet.
  • UV Protection: Polycarbonate sheets are often available with UV-protective coatings. This is particularly important for outdoor applications, like greenhouses or roofing, to prevent damage from UV rays and ensure the longevity of the material.
  • Thickness and Strength: The thickness of the polycarbonate sheet impacts its strength, insulation properties, and ability to withstand the elements. For projects like greenhouses or outdoor roofing, opt for thicker polycarbonate sheets (usually 4mm to 10mm thick) for better durability and insulation.
  • Light Transmission: If you’re using polycarbonate sheets for applications like greenhouses or skylights, it’s important to consider the level of light transmission. Clear polycarbonate sheets allow for maximum light, while frosted or tinted sheets may reduce glare and provide more shade.
  • Price and Budget: Polycarbonate sheets can vary significantly in price depending on the type, thickness, and finish. For budget-conscious buyers, consider the overall cost, including the price per square meter, and the additional benefits of UV protection or insulation that might justify the investment.

3. Common Mistakes to Avoid When Buying Polycarbonate Sheets

  • Choosing the Wrong Thickness: One of the most common mistakes is choosing a polycarbonate sheet that is too thin or too thick for the project. Always consider the application and local weather conditions before making your decision. Thicker sheets are better for insulation and durability, but thinner sheets are easier to handle and more affordable.
  • Neglecting UV Protection: For outdoor applications, UV protection is crucial to prolong the lifespan of your polycarbonate sheets and protect your plants or interior space from harmful UV rays. Always check if the sheets come with a UV-resistant coating, especially for greenhouse roofing.
  • Not Considering Ventilation: While multiwall polycarbonate sheets offer insulation, it’s important to ensure proper ventilation in applications like greenhouses. Without proper airflow, moisture buildup can occur, leading to mold or mildew growth. Choose the right type of sheet that balances insulation and airflow.
  • Overlooking the Quality of the Material: Polycarbonate sheets can vary in quality depending on the manufacturer. It’s essential to buy high-quality polycarbonate sheets to ensure longevity, impact resistance, and UV protection. Always purchase from reputable suppliers like Jeewa Plastic for the best results.


4. Where to Buy Polycarbonate Sheets in Sri Lanka

At Jeewa Plastic, we offer a wide range of polycarbonate sheets for sale that cater to various needs, whether for greenhouses, skylights, or signage. Our polycarbonate sheets are designed to offer superior strength, durability, and UV protection, making them ideal for both residential and commercial applications.

  • Polycarbonate Sheet Price in Sri Lanka: We provide polycarbonate sheets at competitive prices, ensuring you get the best value for your investment.
  • Buy Polycarbonate Sheets: Whether you need multiwall polycarbonate sheets for insulation or solid polycarbonate sheets for durability, we have a selection that suits your project requirements.

5. Tips for Installing Polycarbonate Sheets

  • Pre-Drill Holes: When installing polycarbonate sheets, make sure to pre-drill holes to avoid cracking. The holes should be slightly larger than the screws to allow for expansion and contraction.
  • Proper Support: Polycarbonate sheets, especially multiwall sheets, require proper support structures. Ensure that the sheets are evenly supported to avoid sagging over time.
  • Seal the Edges: For outdoor installations, seal the edges of the polycarbonate sheets with appropriate weatherproof sealing tape to prevent water and dirt from entering the spaces between the sheets.

Conclusion: Making the Right Choice

Choosing the right polycarbonate sheet for your project depends on a variety of factors, including application, thickness, UV protection, and budget. At Jeewa Plastic, we offer a diverse range of polycarbonate sheets suitable for any need, from greenhouses to signage and roofing. By considering the factors outlined in this guide and avoiding common mistakes, you’ll be able to select the perfect polycarbonate sheets for your project.

Visit Jeewa Plastic today to explore our selection of polycarbonate sheets and make your project a success!

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