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
NCC 2019 compliant brochures and AU made

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 (nom.) 4 mm 
Product R-value R0.11 m2.K/W at 23oC
Roll Diameter (nom.) 420 mm 
Roll Weight (nom.) 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  Anti-Glare Face: 95%
Reflective Face: 97%
Emittance  Anti-Glare Face: E0.05
Reflective Face: 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

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, as required.
Air-Cell Permifloor suspended framed floor render

System R-value

   Heat Flow In (Summer)  Heat Flow Out (Winter)
Unenclosed sub-floor*


Enclosed sub-floor* RT1.6  RT3.0

*Residential framed floor

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 100 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 9001:2015 Quality Management
ISO 14001:2015 Environmental Management
OHSAS 18001:2007 Safety Management

Product Specifications

Property Test Method / Standard Specification Classification
Flammability Index AS 1530.2 ≤ 5 Low
Material R-value

ASTM C518 at 23oC

0.11 m2.K/W -
IR Emittance
AS/NZS 4201.5
Reflective face: 0.03
Anti-Glare Face: 0.05
IR Reflective IR Reflective
IR Emittance - - Category RR
Burst Strength AS 3706.4 (CBR) 0.9 kN -
Vapour Control
Vapour Permeable
1.200 µg/N.s
Class 3
Water Control AS/NZS 4201.4 Pass Non-Water Barrier
Moisture Shrinkage AS/NZS 4201.3 < 0.5% -
Dry Delamination AS/NZS 4201.1 Pass -
Wet Delamination AS/NZS 4201.2 Pass -
Surface Water Absorbency AS/NZS 4201.6 < 100g/m2 Low
Corrosion Resistance AS/NZS 4859.1:2018
App. E
Pass -
Electrical Conductivity AS/NZS 200.1:2017 - c. ≤ 10 MΩ Electrically Conductive

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 35 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