Double Glazed Windows Manufacturer

Double Glazed Units - U Values


U-values express the rate of heat transfer through the walls, roofs, windows of a building. The table below shows the U-Value of various types of glass.

 

Glass Specification

Cavity Width

  12mm 16mm 20mm
       
Float / Air / Float 2.9 2.7 2.8
Float / Argon / Float 2.7 2.6 2.6
Float / Air / Pilkington K Glass 1.9 1.5 1.8
Float / Argon / Pilkington K Glass 1.6 1.5 1.5
       
 

Overall thicknes of double glazed unit

  20mm 24mm 28mm

 

 

 

© Glass Master - March 2009
Glass Master. The Dairy, Hill St, Ashton-Under-Lyne, Lancashire OL7 0PZ