Kooltherm K10 G2 Soffit Board

Kooltherm K10 Product Wedge

Insulation for Concrete Soffits

Kingspan Kooltherm K10 G2 Soffit Board is a high performance, fibre-free rigid thermoset phenolic insulation core, sandwiched between an upper tissue-based facing and a lower facing of highly reflective aluminium foil autohesively bonded to the insulation core during manufacture.
  • Group 2 for interior lining applications
  • Resistant to the passage of water vapour
  • Easy to handle and install
  • NZBC and AS/NZS 4859.1 compliant

Product Information

Thermal Conductivity (λ-Value) 0.021 W/m·K (Insulant Thickness 25 - 44 mm)
0.020 W/m·K (Insulant Thickness ≥ 45 mm)
Emittance (Foil Face) E0.14
Product Dimensions 2400 mm x 1200 mm (2.88 m2)
Product Thickness 25, 30, 40, 50, 60, 70, 80, 90 mm 
The R-values shown are Total R-values for the building element and are calculated in accordance with AS/NZS 4859.1 and NZS 4214. Kingspan Kooltherm products are manufactured, tested and packaged in conformance with AS/NZS 4859.1.

The contribution of the product Total R-values depends on installation and environmental conditions.

The R-value will be reduced in the event of the accumulation of dust on the upward facing surfaces and in those cavities that are ventilated.

Product R-values

 Product Thickness  Product R-value
 25 mm  R1.2
 30 mm  R1.4
 40 mm  R1.9
 50 mm  R2.5
 60 mm  R3.0
 70 mm  R3.5
 80 mm  R4.0
 90 mm  R4.5

System R-values

Click on the specific application types below to view their System R-values

Flat Concrete Roof (Soffit) - Suspended Ceiling

View System R-value

Flat 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
The soffit insulation shall be Kingspan Kooltherm K10 G2 Soffit Board ____ mm thick, with a tested smoke obscuration of not more than 100 m2/kg, comprising a CFC/HCFC-free and zero Ozone Depletion Potential (ODP) rigid thermoset phenolic insulation core with a tissue based facing on one side and composite foil on the other side, manufactured under a management system certified to ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007 and ISO 50001:2011by Kingspan Insulation Limited and shall be installed in accordance with the instructions issued by them.

A Project Specific Warranty provided by Kinspan Insulation must be submitted.

Handling & Storage

View Instructions

Cutting and Taping

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Installing on Concrete Soffit

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Fixing to Timber Battens/Furring Channels

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Installation around Fire Collars

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PDF Format

CAD PDF - Flat Concrete Roof Soffit_No Suspended Ceiling

DWG Format

CAD DWG - Flat Concrete Roof Soffit_No Suspended Ceiling

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 > 100 MN·s/g

Fire Performance

Test Test Method Result
Flame Spread
Heat Release
Smoke Release
AS 1530.3  Spread of Flame Index: 0
Smoke Development: ≤ 3
Flame Propagation (AS 1366) AS 2122.1 Complies
Group Number AS ISO 9705 Group 2-S
Average Smoke Production Rate  no greater than 0.5 m2s-1
(0-10 min)

Environmental Data Table

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 New Zealand

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