Types of Polycarbonate Sheets: Guide to Choosing the Right Sheet for Your Project

Polycarbonate sheets are  tough, lightweight, and versatile, making them ideal for a wide range of applications. From pergola roofing and skylights to decorative polycarbonate façades system and greenhouses, polycarbonate sheets provide durability, light transmission, and thermal performance that other materials cannot match. In this guide, we explore the different types of polycarbonate sheets and their key features to help you choose the right product for your project.

1. Solid Polycarbonate Sheets

Solid polycarbonate sheets are compact, single-layer sheets that offer exceptional clarity and light transmission, often exceeding 89%. Their extreme transparency makes them perfect for glazing, skylights, and protective barriers.

Key Features:

• UV Protection: Equipped with a UV layer to prevent yellowing from sunlight exposure.

• Impact Strength: Up to 200 times stronger than glass and 10 times tougher than toughened glass.

• Lightweight:  half the weight of glass, reducing structural requirements and freight costs.

• Thermal Insulation: Lower thermal conductivity helps reduce heat loss, potentially minimizing air-conditioning needs.

• Flame Resistance: High ignition temperature of ~580°C; rated B1 for fire safety.

Solid Polycarbonate vs Hollow Sheets (Twin wall or Multiwall Sheet)

• Construction: Single-layered, unlike hollow sheets with multiple layers.

• Weight: Heavier than hollow sheets but still lightweight compared to glass.

• Thermal Insulation: Solid sheets provide moderate insulation, while hollow sheets trap air for better thermal performance.

• Sound Insulation: Solid sheets offer superior soundproofing.

• Price: Higher cost due to more material usage.

2. Twin-Wall (Hollow) Polycarbonate Sheets

Twin-wall or hollow polycarbonate sheets have an internal air chamber, which gives them excellent thermal insulation and structural rigidity. These are also called cellular, multi-wall, or structural polycarbonate sheets.

Key Features:

• Thermal Insulation: Air chambers trap heat, making them ideal for energy-efficient glazing.

• Lightweight & Rigid (1.15kg/sqm for 6mm, 1.7kg/sqm for 10mm)

• High Impact Resistance

• Versatile Applications:  skylights, greenhouses, and door canopy, awning

Types of Hollow Sheets:

• Twin-wall sheets:

• Triple-wall sheets

• Multi-wall sheets: Up to six layers for optimized thermal performance (U-value and R-value).

3. Multi-Wall Polycarbonate Sheets

Multi-wall polycarbonate sheets are an extension of hollow sheets, offering enhanced insulation, flexibility, and lightweight properties. The number of walls and air chambers can be customized for specific thermal and structural needs.

Advantages:

• Lower Weight: Reduces shipping and construction costs.

• Cost-Effective: Uses less material than solid sheets.

• Rigid

4. Corrugated Polycarbonate Sheets

Corrugated polycarbonate sheets are designed to mimic traditional corrugated metal or iron roofing while offering all the benefits of polycarbonate. They combine strength, flexibility, and visual appeal.

Key Features:

• High Impact Strength: Over 200 times stronger than other corrugated plastics; retains performance from -40°C to 130°C.

• Versatility: Suitable for skylights, greenhouses, roofing

• UV Protection

• Lightweight & Cost-Efficient

Choosing the Right Polycarbonate Sheet

Selecting the right polycarbonate sheet depends on your project’s requirements:

• Need maximum glass like clarity and excellent strength? → Choose solid sheets.

• Require insulation and lightweight construction? → Choose twin-wall or multi-wall sheets.

• Want a budget friendly roofing solution ? → Choose corrugated sheets.

Every polycarbonate sheet comes with a data sheet detailing its mechanical, physical, and thermal properties. Look for UV protection and warranty to ensure long-term performance.

Final Thoughts

Polycarbonate sheets are versatile, durable, and perfect for residential, commercial, and industrial applications. From solid to multi-wall, and corrugated to textured designs, there is a polycarbonate sheet for virtually every project.

Need help choosing the right polycarbonate sheet? Our team at Excelite is here to guide you to the best product for your needs!