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Paratorch is a composite insulation panel with a 12mm bitumen impregnated fibreboard upper face. It is used as a substrate for direct bonding of multi-layer modified bitumen torch applied membranes and hot bitumen bonded waterproofing systems. The upper facing of Paratorch is a factory bonded bitumen fibre board manufactured from high density bitumen impregnated wood-fibre. The core of Paratorch consists of a high performance, class O, Zero ODP, CFC-free, rigid PIR insulant, and the base consists of a bitumen felt bonded to the insulation core during manufacture.

Specification data
Product Reference



35 mm

40 mm

50 mm

70 mm

80 mm

90 mm

100 mm

120 mm

Standard product features

Board size:

1200 x 1200 mm.

Fibre thickness:

12 mm.

PIR density:

32 kg/m³.

Compressive strength:

150 kPa.

Thermal conductivity (k value):

  • PIR core: 0.023 W/mk.
  • Wood-fibre: 0.05 W/mK.

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