Kooltherm K10 PLUS Soffit Board

Kooltherm K10 PLUS Product Wedge

Insulated Fibre Cement Sheet for Concrete Soffit

Kingspan Kooltherm K10 PLUS Soffit Board is a high performance, fibre-free rigid thermoset, closed cell phenolic insulation core, sandwiched between a front facing fibre cement sheet and a reverse tissue  based facing autohesively bonded to the insulation core during manufacture.

Kingspan Kooltherm K10 PLUS Soffit Board is manufactured without the use of CFCs/HCFCs and has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

  • Made in Australia
  • Available in a range of selected lining materials
  • Non-combustible building board outer face
  • Group 1 NCC fire classification
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) Insulant 0.021 W/m.K at 23oC
(Insulant thickness ≥ 45 mm)
0.023 W/m.K at 23oC
(Insulant thickness 25 - 44 mm)
Fibre Cement 0.23 W/m.K at 23oC
(Fibre Cement thickness 6 mm)
Product Dimensions   2400 mm x 1200 mm (2.88 m2)
Other dimension available upon enquiry. Minimum order quantities apply.
Nominal Product Thickness (including Fibre Cement Sheet)   31, 36, 46, 56, 66 ,76, 86, 96 mm
Nominal Fibre Cement Sheet Thickness   6 mm

A selection of alternative lining boards to create customised finishes and facings is available. Please contact us for more information. 
Kooltherm K10 PLUS insulation R-value render

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 & NZS 4214. Kingspan Kooltherm® products are manufactured, tested and packaged in conformance with AS/NZS 4859.1:2018.

Product R-values

View Product R-values

Concrete Roof (Soffit) - No Suspended Ceiling

View System R-value

Concrete Floor (Soffit) - Unenclosed Sub-Floor

View System R-value

Concrete Floor (Soffit) - Enclosed Sub-Floor

View System R-value

Handling & Storage

View Instructions

Cutting and Taping

View Instructions

CAD PDF - Flat Concrete Roof Soffit_No Suspended Ceiling

CAD DWG - Flat Concrete Roof Soffit_No Suspended Ceiling

BIM 2016 - Kooltherm K10 PLUS Soffit Board

BIM 2017 - Kooltherm K10 PLUS Soffit Board

BIM 2018 - Kooltherm K10 PLUS Soffit Board

BIM 2019 - Kooltherm K10 PLUS Soffit 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 (Insulant) 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

For the puspose of calculation of condensation risk, the resistivity of the fibre cement sheet component of the product should be taken as 250 MN·s/g·m.

Fire Performance

Test Test Method Result
Flame Spread
Heat Release
Smoke Release
AS 1530.3  Spread of Flame Index: 0
Smoke Development ≤ 3*
NCC Group Number in
accordance with AS 5637.1
AS/NZS 3837 /
Amdt 1
Group 1**
Average Specific Extinction
AS/NZS 3837 ≤ 100 m2/kg**
Fire-resistance test of elements of construction AS 1530.4*** -/240/240
(HDPE pipe)
*Applies only to the Kingspan Kooltherm K10 Insulation board used in the manufacture of this composite insulated fibre cement product.
** Applies only to the compliant fibre cement facing.
*** Testing to AS 1530.4 for the Kingspan Kooltherm K10 performed in accordance with NCC BCA C3.15 Opening for service penetrations using a 120 mm concrete soffit.

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

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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