Optical properties of polycarbonate roofing
The light permeability of the clear not colored polycarbonate panel is between 50% and 90% (pure glass has 90% - 95%).
Any coloring decreases the ability of polycarbonate to transmit the light through.
All polycarbonate roof panels transmit large part of visible and also infrared spectre.
The UV stability of polycarbonate roofing
Majority of plastic materials degrades over the time being exposed to ultraviolet radiation. To avoid such material degradation the polycarbonate roof panels are treated with UV filters (from the upperside only or from both sides).
If the UV filter was applied only fr...
Polycarbonate is a thermoplastic material with excellent mechanical, thermal and optical features. Polycarbonate roofing usually is delivered as polycarbonate sheets or polycarbonate panels.
Polycarbonate sheets, polycarbonate panels
Both polycarbonate sheets and polycarbonate panels are made of the same material but have different sizes. Both polycarbonate sheets and polycarbonate panels are lightweight roofing products as the material itself is hollow (contains system of longitudinal cavities).
The polycarbonate properties can be further improved with:
- UV (ultraviolet radiation) filters, usualy applied during coextrusion of the roofing panel or sheet;
- special addi...
