High Thermal Performance Insulation Panel for Green Roofs and Roof Top Applications

Product Introduction

PIRMAX RT Panel is a modified PIR (Polyisocyanurate) rigid thermal panel that can be used for rooftop green roofs and laminating applications. PIRMAX RT PANEL is a light weight closed cell PIR consisting of a foam inner core, thermoset between two layers of embossed aluminum foil facings.

PIRMAX RT-T PANEL is manufactured in a tapered form to enhance water drainage from flat roofs.

PIRMAX RT PANEL is CFC free with zero Ozone Depletion Potential (ODP), does not release Volatile Organic Compounds (VOC’s) and is manufactured in Australia.


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PIRMAX RT Panel certified by Declare as Red List Free!


  • Amongst the highest thermal values of rigid board insulation due to the product’s low thermal conductivity.
  • Mould and Moisture Resistant.
  • Achieves excellent fire hazard results when tested to AS/NZS 1530.3.
  • RED LIST FREE product, ingredients are 100% disclosed to 100 ppm, and do not contain any Red List chemicals.
  • Not corrosive to metal over time.

Australian Made

PIRMAX RT PANEL is manufactured in Australia by an Australian owned and operated company, and guarantee the highest quality insulation material.  As our products are wholly Australian Made we take pride in our manufacturing to ensure a high standard of quality, service and value.

Recycled Content

PIRMAX RT PANEL utilises a proprietary process that enables the use of waste PET bottles in the product, that otherwise would have been destined for landfills or found their way into our oceans and rivers. In this process, plastic waste is transformed into highly efficient insulation that helps conserve energy and reduce emissions.

Calculate how many bottles your project will recycle:


PIRMAX RT Panel is designed to be used as thermal insulation in green roofs and roof deck systems, protected by waterproofing membranes. 

Typical applications include Roof Systems, Green Roofs, Concrete Roof Systems, Ground Floor Slabs.

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Product Details
Product NamePIRMAX RT Panel “modified PIR rigid thermal insulation”
Product NamePIRMAX RT-T Panel “tapered modified PIR rigid thermal insulation”
Product CodePIRMAX RT ______ (mm)
Panel Size2400mm x 1200mm (2.88m2).
Also can be cut to custom lengths and sizes.
FacingsFoam inner core, thermoset between two layers of embossed aluminum foil facings
Product R Values
Nominal ThicknessDeclared R-value (m2K/W)
PIRMAX RT 60mmR2.85
PIRMAX RT 70mmR3.30
PIRMAX RT 80mmR4.00
PIRMAX RT 90mmR4.50
PIRMAX RT 100mmR5.00*

* Estimated R-Value, based on λ0.020
Summary of Testing Results
ThermalAS/NZ 4859.1:2018Refer to table above
Ignitability IndexAS 1530.30
Spread of Flame IndexAS 1530.30
Heat Evolved IndexAS 1530.30
Smoke Developed IndexAS 1530.30-1
Water Vapour ResistivityAS1366.2/AS 2498.310-15 (g/m2.24h) water transmission rate
Compressive StrengthAS1366.2/AS 2498.3≥125+ (kPa) at 10% compression
DeclareRed List Free (does not contain any Red List Chemicals)
Volatile Organic Compounds (VOC)<0.01 mg/m3
TransportAustralian made & owned, not transported from overseas, minimal carbon footprint
Energy EfficientLong term energy savings and environmental benefits
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PIRMAX ISO2 Silver now certified by Declare as Red List Free!
Installation Instructions

Before installing PIRMAX RT PANEL make sure that all documentation has been approved for the application by a relevant building professional, and installation is by a trained applicator.