Kingspan Kooltherm K118 Insulated Plasterboard (All Sizes) 2.4m x 1.2m All Insulation
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Kingspan Kooltherm K118 Insulated Plasterboard (All Sizes) 2.4m x 1.2m (Price Per Pallet)

SKU: K118/25

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  • Fiber-free, rigid thermoset phenolic core
  • Low lambda values for superior heat retention
  • Dry lining with a strong adhesive bond for protection

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Kingspan Kooltherm K118 Insulated Plasterboard is one of the best insulation plasterboards available,  developed with a fibre-free and rigid thermoset phenolic core. Kingspan Kooltherm K118 Insulated Plasterboard offers lower lamba values that makes it retain more heat when it comes to plasterboards for internal wall insulation.

Kooltherm K118 has been made using plasterboard bonded to its front surface and a reverse facing foil, this has been done with quick response heating in mind. The reverse facing side is a low emissivity composite foil which improves the thermal resistance. It provides a level of matchless performance among rigid thermoset insulation materials commonly available with just 0.019 W/mK's thermal conductivity across all densities. This insulated plasterboard has a dry lining, coated by a strong adhesive bond for protection.

Key Features

  • Insulates the concrete wall surfaces, under rafters and interior to beam frames.
  • Unaltered by air infiltration.
  • Permits quick response heating.
  • Water vapour resistant: Yes
  • Non–deleterious material


  • Brand: Kingspan
  • Length: 2400mm
  • Material type: Phenolic
  • Thermal conductivity: 0.019 W/mK
  • Width: 1200mm
  • Fixed with drywall screws
  • Use Noggins to support board edges


It should be stored inside, in a protected area where all the sheets are to be stacked flat on a level base. If stored temporarily in an outdoor location, a weatherproof tarpaulin should be used for safety.


Kingspan Kooltherm K118 Insulated Plasterboard is manufactured to the highest standards under a management system certified to ISO 9001: 2015 (Quality Management Systems. Requirements), ISO 14001: 2015 (Environmental Management Systems. Requirements), ISO 45001: 2018 (Occupational Health & Safety Management Systems. Requirements with guidance for use) and ISO 50001: 2018 (Energy Management Systems. Requirements with guidance for use).


Frequently Asked Questions

What is Kingspan Kooltherm K118 Insulated Plasterboard? This is a high-performance insulation board with a plasterboard facing, designed to provide both insulation and a finished surface in one product.

What are the available sizes for Kingspan Kooltherm K118 Insulated Plasterboard? The product is available in various sizes, with dimensions of 2.4m x 1.2m.

What type of applications is Kingspan Kooltherm K118 suitable for? It is suitable for a wide range of applications, including walls and ceilings in both residential and commercial buildings.

Is Kingspan Kooltherm K118 suitable for use in moisture-prone areas like bathrooms? It is not recommended for use in areas with high moisture levels. Consider using a moisture-resistant variant in such situations.

Can Kingspan Kooltherm K118 be painted or decorated after installation? Yes, after installation, the plasterboard surface can be painted or decorated according to standard practices.

Length 2400mm
Width 1200mm
Thermal Conductivity 0.019 W/mK
Brand Kingspan
Material Type Phenolic

Est Delivery between and .

Delivery will always take place on a weekday (Mon - Fri).
For more information on delivery visit our delivery info page.

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