Multiwall Polycarbonate Hollow Sheet for Greenhouse & Swimming Pool Cover | Buyer Guide

Superior Thermal Insulation with Hollow Panels

Polycarbonate hollow panels represent one of the most efficient solutions for thermal insulation in modern construction. Their multi-wall structure creates air chambers that act as a natural thermal barrier.

Structure and Function

Multi-Wall Design

Available in 2 to 6 layer configurations, each additional layer improves thermal performance. The internal rib structure provides rigidity while maintaining minimum weight.

Exceptional U-Values

With U-values from 1.7 to 3.9 W/m²K, these panels significantly outperform single glass (5.8 W/m²K) in energy efficiency, reducing heating and cooling costs.

Advantages of Multi-Wall Insulation

Thermal insulation is 40% superior to conventional glass. The air chambers trapped between walls create an effective barrier against heat transfer, maintaining stable indoor temperatures in both summer and winter.

Controlled light transmission, from 30% to 82%, allows optimizing natural lighting according to project needs. Thicker panels with more layers offer better insulation but lower light transmission.

Ideal Applications

Professional Greenhouses

For crops requiring precise temperature control, 16mm or 25mm panels with 4-6 layer structure provide the best balance between insulation and light.

Architectural Skylights

In commercial and residential buildings, hollow panels allow overhead lighting with excellent energy efficiency, reducing dependence on artificial lighting.

Pool Covers

The combination of moisture resistance, thermal insulation, and light transmission makes these panels perfect for pool covers, extending the usage season.

Selection Guide by Thickness

Professional Installation

Correct installation is crucial to maximize thermal performance. Use H and U aluminum profiles for joints and edges, sealing the ends with aluminum tape on top and micro-perforated tape on the bottom to allow ventilation of internal chambers.