40mm Quinn Therm QF PIR Insulation Board 2400mm x 1200mm (8′ X 4′)

Code: IW8669

Quinn Therm QF consists of a core of polyisocyanurate foam with bonded foil facings. Quinn Therm QF PIR Insulation is a high performance, fibre free board, with a rigid thermoset insulation core and faced on both sides with a low emissivity composite foil facing.

Due to the nationwide issue with the supply of raw material that is used for production of PIR insulation, the current estimated delivery date of PIR Insulation is the week commencing the 9th Nov. As an alternative, we recommend a higher performance insulation Kingspan Kooltherm.

£15.09 £18.11 Inc VAT

In Stock
2 to 3 working days delivery
Low Wholesale Prices
Open to businesses & public


The gas filled cells give QF its high thermal performance and strength while its foil facings maximises performance in individual applications. Quinn Therm QF has a high compressive strength of which allows it to withstand the dead and imposed loads transmitted through the floor.

Quinn Therm QF PIR Insulation Board Specifications

  • Length: 2400mm
  • Width: 1200mm
  • Thermal Conductivity: 0.022W/mK
  • Edging: Square Edge
  • Facing: Composite Foil
  • Fire Performance
  • BS 476-7: Class 1
  • BS EN 13501-1: Euroclass F


  • High Compressive Strength
  • Suitable for domestic and most commercial applications
  • Suitable for new build and refurbishment projects
  • Optimises the performance of any underfloor heating
  • Ideal solution for upgrading the thermal performance of existing floors
  • Reduces heat loss by air infiltration through a suspended timber floor
  • Low thermal conductivity
  • Minimises the thickness required to achieve the design U-value