Double Glazing (SIG Units)2018-11-21T15:25:02+02:00

Double Glazing (SIG Units)

Sealed Insulated Glass Units (SIG’s) are manufactured from two or more panes of glass held apart by a spacer and bonded with a hermetic seal, trapping dehydrated air between the glass panes.


  • Improved resistance to wind-loads
  • Improved thermal insulation
  • Improved solar energy control
  • Minimized condensation

Product Info

Warm Edge Spacer
National Glass Distribution manufactures SIG Units using flexible spacer bars and promote “Warm Edge Technology”, which contributes to energy efficient buildings. Our spacer performs 8% better than the traditional aluminium spacer

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