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PIR Board Size: 940mm x 550mm (0.52m2), 940mm x 275mm (0.26m2), 550mm x 470mm (0.26m2) and 550mm x 235mm (0.13m2)
PIR Boards come in a selection of different thicknesses
Thermal Properties are displayed in the table below

Description PIR Panel Thickness
Insulation Depth (mm)± 40 50 60 70 80 90 100 120 135 140 150
Lambda / K Value (W/m.K) (Thermal Conductivity) 0.031 0.031 0.031 0.031 0.031 0.031 0.031 0.031 0.031 0.031 0.031
R-Value (m².K/W)(Thermal Resistance) 1.29 1.61 1.94 2.26 2.58 2.90 3.23 3.87 4.35 4.52 4.84
Panel Weight (± 0.032kg/㎡) kg/sheet at stated depth 1.28 1.60 1.92 2.24 2.56 2.88 3.23 3.84 4.32 4.48 4.80
Panel Length (mm) 940 940 940 940 940 940 940 940 940 940 940
Panel Width (mm) 550 550 550 550 550 550 550 550 550 550 550
Panel Weight ±/sheet at stated depth & size 0.66 0.83 0.99 1.16 1.32 1.49 1.65 1.99 2.23 2.32 2.48
Panel Length (mm) 940 940 940 940 940 940 940 940 940 940 940
Panel Width (mm) 275 275 275 275 275 275 275 275 275 275 275
Panel Weight ± / sheet at stated depth & size 0.33 0.41 0.50 0.58 0.66 0.74 0.83 0.99 1.12 1.16 1.24
Weight 0.88 kg
Dimensions 940 × 550 mm
Insulation Depth

30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 120mm, 135mm, 140mm, 150mm

Panel Length

940mm, 550mm

Panel Width

550mm, 470mm, 275mm, 235mm

Technical Info

U-Values per specification

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Fire Classification

Fire Classification
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1 review for Repurposed PIR Rigid Insulation Board

  1. E Delph

    I used this to insulate a partition wall, i was able to buy the small quantity required negating waste and saved myself money as it was cheaper than buying new!

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