A high performance insulation board manufactured from CFC or HCFC free closed cell Polyiso (PIR) rigid foam, covered on both sides with a special facer named Duotwin®.

The GT panel is suggested for insulation of pitched roofs, flat roofs under cement slabs or synthetic membranes or bituminous glued, external walls, civil and industrial floors.

REWS approved, for "The Roof Insulation & Double Glazing scheme" is administered by the Regulator for Energy & Water Services - This scheme provides a grant of 50% of the eligible costs up to €1000 for retrofitted roof insulation.


  • Dimensions: 600 x 1200 mm
  • Standard Thickness: from 20 to 120 mm
  • Thermal Conductivity: λD=0,022 W/mK
  • Acoustic Isolation of Wall: 54 dB
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Insulation for flat roofs & inverted roofs (Kontra Bejt), either paved or with waterproofing membrane

Synthetic or bituminous membranes that are directly glued, may be laid down in various methods. Mechanical fixing is recommended in synthetic membranes having low softening or melting temperature.

Insulation for floors and ceilings

Indispensible for completing self-controlled heating systems. This application allows the use of “floating” pavement, capable of attenuating foot noise, and the impact of sound from percussions (sound-proof).

Cavity wall insulation

Suggested for insulation of internal walls and suspended metal frame ceilings.

Stiferite GT: Technical data sheet

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