Hollow polycarbonate (PC) sheets are widely used in construction, agriculture, and commercial fields for their lightweight, thermal insulation, and durability. With various types available, this guide helps you choose the right one for your needs.
1. Common Types of Hollow Polycarbonate Sheets
1.1 Twin-Wall Polycarbonate Sheets
The most widely used type, with two parallel panels connected by vertical ribs, forming a single hollow layer. It’s lightweight, cost-effective, and has good light transmittance (85%-90%). Suitable for small greenhouses, residential canopies, and indoor daylighting. Thickness ranges from 4mm to 10mm, ideal for basic insulation and light transmission needs.
1.2 Triple-Wall Polycarbonate Sheets
With three panels and two hollow layers, it offers better thermal insulation and structural strength than twin-wall sheets. Suitable for commercial greenhouses, industrial workshops, and medium-sized daylighting projects. Thickness is 8mm-20mm, with strong UV resistance.
1.3 Multi-Wall Polycarbonate Sheets (4+ Walls)
Designed for high-demand scenarios, with 4 or more panels and multiple hollow layers. It has excellent thermal insulation, soundproofing, and load-bearing capacity. Suitable for large-scale architectural daylighting, cold storage, and noise barriers. Thickness starts from 20mm.
2. Key Selection Factors
- Thermal Insulation Needs: Choose triple-wall or multi-wall sheets for areas with large temperature differences; twin-wall is sufficient for basic insulation.
- Structural Requirements: For high wind, snow load, or heavy impact, select triple-wall or multi-wall sheets for better stability.
- Budget & Scenario: Twin-wall is cost-effective for small projects; multi-wall is ideal for large-scale, high-demand projects.
- Outdoor Use: All types need UV coating to prevent yellowing and aging, extending service life.
3. Practical Selection Guide
- Small residential/garden projects (e.g., small greenhouses, backyard canopies) → Twin-wall PC sheets (4-8mm).
- Commercial greenhouses, workshop daylighting → Triple-wall PC sheets (8-15mm).
- Large buildings, cold storage, noise barriers → Multi-wall PC sheets (20mm+).
Disclaimer: This guide is for reference only. Select products based on actual project requirements and consult professionals for customization.
