Vacuum Insulated Panel - Construction

Construction

VIPs consist of:

  • Membrane walls, used to prevent air from entering the panel.
  • A panel of a rigid, highly-porous material, such as fumed silica, aerogel, perlite or glass fiber, to support the membrane walls against atmospheric pressure once the air is evacuated.
  • Chemicals (known as getters) to collect gases leaked through the membrane or offgassed from the membrane materials. These are added to VIPs with glass-fiber or foam cores, because cores with bigger pore size require a higher vacuum (less than about 1 mbar) during the planned service life.

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