What are the U-factors for your ACRYLITE® acrylic sheet products?

Product Properties
  • Working with ACRYLITE®
  • Test Data Results
  • Fire Test Performance
  • Equipment Materials and Suppliers
  • Product Properties
  • Care & Maintenance
  • Application Advice
  • Cementing
  • Glazing

What are the U-factors for your ACRYLITE® acrylic sheet products?

Thermal Conductivity

The U-factor, or overall heat transmission coefficient, is the amount of heat which will pass through one square foot of a specific thickness of material per hour. U factors depend on specific conditions and differ for summer and winter.

U-Factors Btu/(hour)(sq.ft.)(F)

  Vertical Installation   Horizontal Installation  
Sheet Thickness Summer
Conditions
Winter
Conditions
Summer
Conditions
Winter
Conditions
3.0 mm (1/8”) 0.98 1.06 0.79 1.15
4.5 mm (3/16”) 0.94 1.02 0.76 1.09
6.0 mm (1/4”) 0.90 0.97 0.74 1.04
9.5 mm (3/8”) 0.83 0.89 0.69 0.95
12.0 mm (1/2”) 0.76 0.81 0.65 0.87
24.0 mm (1”) 0.59 0.62 0.53 0.66
31.8 mm (1.25”) 0.53 0.55 0.47 0.57
50.8 mm (2.00”) 0.40 0.42 0.37 0.43

Total Heat Loss or Gain through a Window Due to Conduction/Convection

Heat Loss (Btu/hr) = Window Area (sq. ft.) x [Indoor Temp(°F) - Outdoor Temp(°F)] x U-Factor

For glazing applications, there are some things that should be taken into consideration when designing the framework: thermal contraction and expansion, moisture expansion and contraction, and foreshortening due to deflection under load.

Go back

Related articles

What are the physical properties of ACRYLITE® Resist acrylic sheet? Which side of ACRYLITE® non-glare (P99) sheet should face the artwork? Textures ribbed measurements and sheet direction