Insulation Boards

Kingspan Insulation Thermal Conductivity

What is Thermal Conductivity?

The thermal conductivity of a product is its ability to conduct heat and is expressed in W/mK. It can also be known as a K value (λ) or lambda value. The lower the thermal conductivity, the better the product is to resist heat transfer.

What is the Thermal Conductivity of Kingspan Insulation?

Each range of Kingspan insulation has a different thermal conductivity. The lower the thermal conductivity, the better the insulator.
  • Kingspan OPTIM-R is a vacuum insulation panel (VIP) with a thermal conductivity of 0.007 W/mK.
  • Kingspan Kooltherm K100 is a range of phenolic insulation with a thermal conductivity of 0.018 W/mK.
  • Kingspan Kooltherm is a range of phenolic insulation with a thermal conductivity of 0.023 W/mK - 0.020 W/mK depending on the thickness of the product. 
    • 25 - 44 mm = 0.021W/mK
    • 45 mm or greater = 0.020W/mK
  • Kingspan Therma is a range of PIR insulation with a thermal conductivity of 0.022 W/mK.
  • Kingspan GreenGuard is a range of extruded polystyrene insulation (XPS) with a thermal conductivity of 0.034 W/mK.
  • Kingspan Aerobord is a range of expanded polystyrene insulation (EPS) with a thermal conductivity of 0.031 W/mK or 0.038 W/mK, depending on whether it's the platinum range or the standard range.

Click here to learn more about the Kingspan Insulation Ranges

K8 Corner 3sm

Kooltherm

Premium performance insulation, the Kooltherm K-range comprises the thinnest commonly used insulation products for any specific U-value. Introducing our NEW Kooltherm K8 Plus Partial Fill Cavity Wall Insulation

Browse our Kooltherm range
Optim-R Floors Application

OPTIM-R Systems

Our next-generation insulation is an optimum performance rigid vacuum insulation panel (VIP) with a declared thermal conductivity of just 0.007 W/m·K.

Browse our OPTIM-R range
TF70 Below Concrete Floor SB

Therma Insulation Boards

High performance insulation with fibre-free rigid thermoset PIR insulation core, and a thermal conductivity of 0.022 - 0.026 W/m·K

Browse our Therma range
Kingspan GreenGuard_Basement_UK

Kingspan GreenGuard

Kingspan GreenGuard is a fibre-free rigid extruded polystyrene insulation (XPS). Offering thermal conductivities as low as 0.034 W/m·K, and is used to insulate inverted roofs, basements, car park decks, and heavy-duty commercial, industrial and cold store flooring.

Our Kingspan GreenGuard range
Aerofloor Cover-1

Aerobord Insulation Boards

Our expanded polystyrene insulation (EPS) is a cost effective insulation solution ranging on average from 0.031 W/mK - 0.037 W/mK.

Browse our Aerobord range