Thermogal | Polycarbonate Thermal Insulation

Combines highly effective thermal insulation with extra strength for low-pitch roofing.

  • Suitable for cold climates - extremely low U-Value
  • Save on heating energy costs
  • Bright, transparent look, large range of colours, shades and reflective coatings.
  • Covered by 10 Year Warranty for color, light transmission and strength
  • Can be cold-bent to recommended radii
  • Best insulation performance during cold winter nights
  • Rigid sheet structure provides extra strength under wind and snow loads. To see sheet performance under loads, go to “Support / Wind Load Charts”.
  • Recommended Uses: Low pitch coverings, Lean-to conservatories, Large span structures, Stadiums, Closed structures with interior climate control, Industrial windows
Thermogal Polycarbonate
Technical Specifications:
  Sheet thickness (mm)  25 32  35
  Structure
Thermogal Polycarbonate
Thermogal Polycarbonate
Weight kg/m 2 (lb/ft 2 ) 3.5 (0.30) 3.3 (0.25) 4.0 (0.24)
Minimum cold bending radius mm (inch) 4.37 (14.9") 3.3 (0.25) 6.1 (20")
  U-Factor by ASTM C 177 W/m² • ºC 1.7 (0.31) 1.4 (0.25) 1.36 (0.24)
Light transmission by ASTM D I494 (%) Clear 79 73 67
Ice 54 51 47
Primalite 18* 15* - 
Silhouette Gold - 43 -
Silhouette Pearl - 45 -
Spring - 52 -

*by ASTM D-1003

© 2010 Polygal North America