Kingspan K118 Insulated Plasterboard

  • Size of boards: 1.2 x 2.4m
  • Premium performance rigid thermoset insulation
  • Lightweight and easy to install
  • Dry-lining, insulation and vapour control
  • Internal use
  • Ideal for new-build and refurbishment
  • K118 is sold per pack

Kingspan K118 Insulated Plasterboard

The Kingspan K118 Insulated Plasterboard offers insulation, dry-lining and vapour control all in one board. Manufactured from premium performance rigid thermoset phenolic insulation, which has a thermal conductivity of 0.018W/m2K, the K118 is lightweight, easy to install and effectively helps to prevent heat loss. The insulation core itself is very durable, long-lasting and resistant to short-term contact with solvents, fungi and rodents.

Kingspan K118 insulation is made of high-quality phenolic foam. It’s CFC and HCFC free and has an ozone depletion potential of zero. Its environmental impact is therefore very low for a foam insulation material. The insulation boards are easy to handle and install and are resistant to the passage of water vapour, keeping your roof space warm and dry.

Technical Specification

  • Composition: phenolic insulation with composite foil reverse facing
  • Thermal conductivity: 0.018W/m2K
  • Reaction to fire: Class 0
  • Size of boards: 1.2 x 2.4m
  • Thickness available: 20mm, 25mm, 30mm, 40mm, 45mm, 50mm, 60mm
  • Compressive strength: 120kPa

Coverage per pack

Thickness (mm) Boards per Pack M2 per Pack
20 24 69.12
25 21 60.48
30 18 51.84
40 15 43.20
45 14 40.32
50 12 34.56
60 11 31.68


K118 insulation boards should be installed in accordance with the manufacturer’s installation guidelines – these should cover design and all aspects of the application of the insulation. The existing structure should be surveyed to ensure the construction is capable of supporting the weight of the internal wall system. When internally lining a construction with insulation, condensation can be controlled by ensuring there is a layer of high vapour resistance on the internal surface of the construction. K118 contains an integral vapour control layer which provides the necessary vapour resistance. Kingspan K118 can be installed using either mechanical fixings or adhesive.


Shelf life: please see the manufacturer’s date of expiry. Keep in a dry place, in the original packaging. Avoid excess heat or UV light exposure.


32.5mm – 69.12m2, 37.5mm – 60.48m2, 42.5mm – 51.85m2, 52.5mm – 43.2m2, 57.5mm – 40.32m2, 62.5mm – 34.56m2, 72.5mm – 31.68m2


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