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High Thermal Performance PIR Insulation


Xtratherm FR/BGM is a high-performance PIR insulation faced with a polypropylene fleece finished bitumen glass working surface along with an underside facing of the underside. This Xtraterm PIR insulation is perfectly tailored to fit in any flat roof project and can be partially bonded, torched-on or built-up. Xtratherm FR/BGM is perfectly suitable for use on roof decks that are subject to limited maintenance foot traffic and compatible most bituminous based roofing systems.

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products benefits:

High thermal performance

Easy installation

High compressive strength

Non-deleterious material

Tech info:

  • Density


  • Compressive Strength

    >150kPa @ 10% Compression

  • Thermal Conductivity

    0.024 - 0.027 W/mK

  • U-value (80mm)


  • U-value (90mm)


  • U-value (100mm)


  • U-value (120mm)


  • Length (mm) - UK; Ireland

    1200; 1200

  • Width (mm) - UK; Ireland

    600; 1200

  • Full Information:

    Check out the full
    datasheet available in
    the Downloads section!

More Info

Roof Loading
Xtratherm FR/BGM is suitable for use on roof decks that are subject to limited maintenance foot traffic. Walkways should be provided on roofs requiring regular pedestrian access. When the roof is complete, protective boarding should be laid if additional site work is to be carried out.

Roof Finish
Built up roofing systems should be finished with a suitable reflective layer such as chippings. Advice should be sought from system manufacturer.

Fire Performance
The fire rating when tested to EN 13501-5 and BS 476 Part 3 ‘External Fire Exposure Roof Test’ will be dependent upon waterproofing system specified