Kingspan Kooltherm K3 Floor Board



Kingspan Kooltherm K3 boards can be loose laid onto the concrete slab or between the timber joists of a suspended floor. Available in a range of thickness. Select thickness required to see actual price and product information.

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Kingspan Kooltherm K3 Floorboard Insulation

Insulation for Solid Concrete Ground-Based Floors

Kingspan Kooltherm K3 Floorboard is a high performance, fiber-free rigid thermoset closed cell phenolic insulation core, sandwiched between two layers of tissue-based facing adhesively bonded to the insulation core during manufacture.

  • Made in Australia
  • Resistant to the passage of water vapor
  • Easy to handle and install
  • Fiber-free core

Kingspan Kooltherm K3 Floorboard is manufactured without the use of CFCs/HCFCs and has zero Ozone Depleting Potential (ODP) and low Global Warming Potential (GWP).

Check out Insulation Easy products for residential and commercial buildings.

If you’re interested to read more about Kingspan Insulation, read the Kingspan Insulation page.

Insulation Easy online store sells a wide range of thermal and acoustic insulation products. In addition to this, we also sell Kingspan Kooltherm, Kingspan Air-Cell, Mass Loaded Vinyl, Nuwrap Pipe Lagging Insulation, Foilboard Green Rigid Panels, Fibertex Rock-wool, Autex GreenStuf, Knauf Earthwool, Fletchers Pink Batts, and Bradford Gold Batts.

If you have any questions or require a special delivery quotation, don’t hesitate to Contact Us! You can also get a free obligation quote here. Check out other insulation supplies in Insulation Easy.

For additional information about warranty, delivery, and returns.

Check out other Kooltherm K3 products here.

Additional information


25mm (12 boards), 40mm (8 boards), 50mm (6 boards)


34.56, 23.04, 17.28


1200mm x 24m





Specification Guide

Product Datasheet