Air-Cell Permifloor Wedge

Water-Permeable Underfloor Insulation

Kingspan AIR-CELL Permifloor is an underfloor insulation innovation designed specifically for suspended framed floor applications delivering a 2-in-1 insulation and moisture management solution.

Manufactured with a patented closed-cell, cross-linked foam structure sandwiched by highly reflective foil surfaces and perforated with tiny, evenly-spaced holes, these perforations allow water and vapour to permeate through preventing moisture that can often collect under flooring when using conventional underfloor insulation systems.

500 mm wide pre-cut version is also available for a perfect fit between joists (Kingspan AIR-CELL Permifloor 500).

  • Australian made
  • 2-in-1 insulation and moisture management solution
  • Rodent and insect resistant
  • CodeMark-certified for BCA compliance

Product Information

Product Data Table
Specification Guide
Installation Instructions
CAD Drawings
Testing and Data Table
Product Data  AIR-CELL Permifloor AIR-CELL Permifloor 500
Product Thickness 4 mm 
Roll Diameter 420 mm 
Roll Weight  9.5 kg 6.4 kg
Roll Size 1350 mm x 33.33 m (45 m2) 2 x 500 mm x 30 m (30 m2)
Reflectance  Reflective: 95%
Anti-glare: 97%
Emittance  Reflective: E0.05
Anti-glare: E0.03
Max. Span 2.4m without support mesh

Technical Service

If your construction is different from those specified, and/or to gain a comprehensive R-value calculation and technical information of your project, please consult the Kingspan Insulation Technical Service Department for assistance. Call 1300 247 235 and press "2" to speak with Technical services, email, or use the online contact form.

Assumption and Key

The R-values shown are Total R-values for the building element as required by the Energy Provisions of the Building Code of Australia. Kingspan AIR-CELL 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.
Air-Cell Permifloor suspended framed floor render

System R-value

  Material R-value  Heat Flow In (Summer)  Heat Flow Out (Winter)
Unenclosed sub-floor R0.12  RT1.2  RT1.9
Enclosed sub-floor R0.12 RT1.9  RT3.3

General Requirements

  1. Fit Kingspan AIR-CELL neatly around doors, windows, and any penetrations, and tape if necessary to prevent air leakage.
  2. When taping a plastic squeegee or blade must be used to apply appropriate pressure to the tape. Surfaces must be dry and free from dust, oil or grease prior to taping (please refer to brochure ‘Kingspan Insulation Tape’ for further information).
  3. Leave minimum 50 mm clearance around heat producing flues or light fittings (refer to light fitting manufacturer).
The instructions in this document are guidelines only and should be interpreted with consideration for the specific building design. The installation of Kingspan AIR-CELL should be in conformance with the applicable clauses from AS 3999 and AS/NZS 4200.2 unless otherwise specified.
Kingspan AIR-CELL can be damaged by intense heat above 105° C and contact with sparks and flame from blow torches, welders, cutting tools, etc. must be avoided.
The installer must make due provision for safety when installing Kingspan AIR-CELL in any application.

Safety Information

View Safety Information

Handling & Storage

View Instructions

Suspended Framed Floors (over bearers)

View Installation Instructions

Suspended Framed Floors (between joists)

View Installation Instructions

Suspended Framed Floors - Retrofit (between joists)

View Installation Instructions

Suspended Framed Floors - Retrofit (to underside of joists)

View Installation Instructions

PDF Format

CAD PDF - Suspended Framed Floors Between Joists

CAD PDF - Suspended Framed Floors Over Bearers

DWG Format

CAD DWG - Suspended Framed Floor Between Joists

CAD DWG - Suspended Framed Floor Over Bearers

PSI - AIR-CELL Foam Range

Management Standards

Standard Management System
ISO 9001:2008 Quality Management
ISO 14001:2004 Environmental Management

Manufacturing Specifications

Characteristic Test Method / Standard Specification
Flammability Index AS 1530.2 ≤ 5
Material Thermal Resistance ASTM C518 0.12 m²·K/W
Emittance ASTM E408 Reflective Face E0.03
Anti-Glare Face E0.05
Duty Rating (Burst Force) AS 3706.4 0.9 kN - equivalent to Extra Heavy Duty
Vapour Barrier ASTM E96 Low Resistance
Shrinkage AS/NZS 4201.3 <0.5%
Dry Delamination AS/NSZ 4201.1 Pass
Wet Delamination AS/NSZ 4201.2 Pass
Water Barrier AS/NSZ 4201.4 Unclassified
Water Absorbency AS/NSZ 4201.6 Unclassified
Corrosion Resistance AS/NZS 4859.1 Appendix I Pass

Environmental Data Table

Aspect Characteristic
Recyclability Waste not recyclable. Roll width to suit most applications to minimise site waste
Re-usability Re-usable if removed with care (long term of service expected)
Water Use No water used in Kingspan Insulation's manufacturing process
Ozone Depleting Substances None present in the finish product or in Kingspan Insulation's manufacturing process
Packaging Contains approximately 10% recycled product. Packaging is 100% recyclable
Embodied Energy 43 MJ/m² approximately

The Fast and Furious Installation Challenge

We’ve put Kingspan AIR-CELL Permifloor 500 to the speed test and compared it with foil-faced polystyrene panels and underfloor batts. With no cutting or support accessories needed, Kingspan AIR-CELLPermifloor 500 is easy to handle and comes out on top of the challenge.

Latest Case Studies

Do you need help and advice on your project?

Our teams are dedicated to helping you make process as easy as possible and ensure you get the right materials for your needs.

Contact Us

Contact Information

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

Head Office

25 Oherns Road,

Somerton, VIC


Call: 1300 247 235

Fax: 1300 247 329

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