02 Apr

Double & Triple Glazing

Glazing can be a high area of heat loss from a property. This can be reduced wth the installation of double or triple glazing. This type of glazing uses 2 or 3 layers of thin glass with a cavity.
The elements affecting a window’s performance include:

  • No. of Glass Layers (more is better)
  • The Cavity Width (increasing this will reduce the heat loss)
  • The Gas in the Cavity (argon and krypton are better than air)
  • Spacer Bars (foam loses less heat than aluminium)
  • Low Emmisivity Coating (this reduces the heat loss due to radiation)
  • Thermal Breaks in the Frame
  • The Frame Material (wood and plastic lose less heat then aluminium)

Currently most double glazed windows have a U-value of 1.6.