Kooltherm K8 Cavity Board

Kooltherm K8 Cavity Board Product Wedge

Rigid Cavity Wall Insulation

Kingspan Kooltherm K8 Cavity Board is a high performance, fibre-free rigid insulation suitable for cavity wall applications. It has a thermoset phenolic insulation core, sandwiched between two layers of reflective, low emissivity composite foil autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any cavity adjacent to the board.

  • Made in Australia
  • Clear cavity is maintained
  • CodeMark-certified for NCC compliance
  • CFCs/HCFCs free, zero Ozone Depleting Potential (ODP), and low Global Warming Potential (GWP)
NCC 2019 compliant brochures and AU made

Total R-value Calculator

Customise your wall, roof and floor systems and produce NCC 2019 Total R-values Reports. Powered by Speckel.

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Product Information

Product Data Table
Specification Guide
Installation Instructions
Testing and Data Table
Declared Thermal Conductivity (λ-Value) 0.023 W/m.K at 23oC
(insulant thickness 25 – 44 mm)
Emittance (Foil Face) E0.06
Product Dimensions 1200 mm x 514 mm (0.61 m2)
Other dimensions available upon enquiry. Minimum order quantities apply.
Nominal Product Thickness 25, 40 mm
Other thicknesses available upon enquiry. Minimum order quantities apply.

Assumption and Key

NCC 2019 prescribes different methods to determine Total R-value Calculations for Volume 1 and Volume 2.

The R-values shown are Total R-values for the building element as required by the Energy Provisions of the National Construction Code, calculated in accordance with AS/NZS 4859.2 2018.

Kingspan Kooltherm® products are manufactured, tested and packaged in conformance with AS/NZS 4859.1:2018.

Examples shown are suitable for NCC Class 1 & 10a housing and Fire-Resisting Construction Type C walls in NCC Class 2 – 9 buildings. For Fire-Resisting Construction Type A & B walls in NCC Class 2 – 9 buildings a Performance Solution is required. Please contact Kingspan Insulation Technical Services on 1300 247 235 or email technical@kingspaninsulation.com.au for further guidance.

Product R-values

View Product R-values

Double Brick Cavity Wall

View System R-value

Brick / Block Cavity Wall

View System R-value

Handling & Storage

View Instructions

Cavity Wall

Installation should be in accordance with AS 3999:2015, Section 4 - Safety Requirements for Insulation Installation.

View Installation Instructions

CAD PDF - Double Brick Cavity Wall_Kooltherm K8

CAD DWG - Double Brick Cavity Wall_Kooltherm K8

BIM 2016 - Kooltherm K8 Cavity Board

BIM 2017 - Kooltherm K8 Cavity Board

BIM 2018 - Kooltherm K8 Cavity Board

BIM 2019 - Kooltherm K8 Cavity Board

Management Standards

Standard Management System
ISO 9001:2015 Quality Management
ISO 14001:2015 Environmental Management
ISO 45001:2018 Health and Safety Management
ISO 50001:2011 Energy Management

Product Testing

 Characteristic  Standard  Result
 Compressive Stress AS 2498.3  Typically exceeds 100 kPa at 10% compression
 Water Vapour Resistance  BS EN 12086:1997 / I.S. EN 12086:1998  > 35 MN·s/g

Fire Performance

 Test  Test Method  Result
 Spread of Flame Index
 Heat Release
 Smoke  Development
 AS 1530.3  Spread of Flame Index: 0
Smoke Development: ≤ 3

Environmental Data Table

Aspect Characteristic
 Recyclability Non-contaminated insulation site waste is recyclable, but there are currently no facilities in  Australia to process returned material
 Re-usability Re-usable if removed with care (long term of service expected)
 Water Use No water used in Kingspan Insulation's manufacturing process
Blowing Agent Global Warming  Potential (GWP) Manufactured with a blowing agent that has low GWP
Blowing Agent Ozone Depletion  Potential (ODP) Manufactured with a CFC/HCFC-free blowing agent that has zero ODP
Packaging Contains 0% recycled product
Polythene wrap and EPS skids 100% recyclable

Do you need help and advice on your project?

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Kingspan Insulation Australia

Kingspan Insulation operates Australia wide. Contact us to find your local State Representative. For any enquiries, call 1300 247 235 or send an email to info@kingspaninsulation.com.au.

Head Office

25 Oherns Road,

Somerton, VIC


Call: 1300 247 235

Fax: 1300 247 329