The thermal performance of Isonat is similar to, or better than, other fibre based insulation products.

ISONAT original (hemp/cotton)
Thermal Resistance (R)
     50mm thickness   = 1.28 m^2.k/W
     75mm thickness   = 1.92 m^2.k/W
     100mm thickness = 2.56 m^2.k/W
     125mm thickness = 3.21 m^2.k/W
     150mm thickness = 3.85 m^2.k/W
     175mm thickness = 4.49 m^2.k/W
     200mm thickness = 5.13 m^2.k/W
     225mm thickness = 5.77 m^2.k/W
     250mm thickness = 6.41 m^2.k/W
     275mm thickness = 7.05 m^2.k/W
     300mm thickness = 7.69 m^2.k/W

ISONAT+ (hemp/wood)
     50mm thickness   = 1.32 m^2.k/W
     75mm thickness   = 1.97 m^2.k/W
     100mm thickness = 2.63 m^2.k/W
     125mm thickness = 3.29 m^2.k/W
     150mm thickness = 3.95 m^2.k/W
     175mm thickness = 4.61 m^2.k/W
     200mm thickness = 5.26 m^2.k/W
     225mm thickness = 5.92 m^2.k/W
     250mm thickness = 6.58 m^2.k/W
     275mm thickness = 7.24 m^2.k/W
     300mm thickness = 7.89 m^2.k/W

RESISTANCE TO SETTLEMENT
As the maintenance of thickness is essential to thermal performance, Isonat has been deisgned to resist settlement. This allows multiple layers to be used without a loss in thickness. Unlike Isonat, low density mineral fibre products do not support the weight of additional layers without a significant reduction in overall thickness, thereby compromising thermal performance. Isonat is also extremely effective at resisting creeping settlement over time - unlike mineral fibres, natural fibres are tough and do not fracture or crumble.

HEAT CAPACITY
The heat capacity of Isonat is approximately double that of equivalent mineral fibre products – helping to enhance thermal comfort by reducing overheating in summer and by damping internal temperature fluctuations.

For more details on the performance of Isonat, please review other sections of this web site. More technical information is also available in the Downloads section of this web site.

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