High Thermal Performance Insulated Plasterboard

Product Introduction

PIRMAX HRP PANEL is a modified PIR (Polyisocyanurate) rigid thermoset insulation laminated with 10mm plasterboard. PIRMAX HRP PANEL consists of one side tapered edge gypsum based 10mm plasterboard and foil on the reverse side adhesively bonded to the PIR core.

Alternative plasterboard linings, such as 13mm plasterboard, can also be used upon request.

PIRMAX HRP PANEL is designed to achieve excellent thermal value where minimal cavity is required giving buildings continued thermal efficiency throughout their life span. PIRMAX HRP PANEL is easy to handle and allows fast fixing to any application.  Fully compliant to the Australian National Construction Code.

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

  • Complies with AS/NZS 4859.1:2018.
  • Amongst the highest thermal values of rigid board insulation due to the product’s low thermal conductivity.
  • Achieves a Group 1 BCA/NCC fire classification when tested to AS 5637.1 (AS/NZ 3837), compliant to the National Construction Code, NCC/BCA Volume 1; Specification C1.10.
  • Not corrosive to metal over time.
  • Able to custom manufacture to different sizes and facing colours.
  • Fast manufacturing turnaround times.

Australian Made

PIRMAX HRP PANEL is manufactured in Australia by an Australian owned and operated company, and guarantee the highest quality insulation material.  Raw materials and chemicals are also sourced from Australian companies wherever possible. As our products are wholly Australian Made we take pride in our manufacturing to ensure a high standard of quality, service and value.


Wall Systems and Raked Ceiling Systems.

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Product Details
Product NamePIRMAX - HRP Panel “modified PIR rigid thermal insulation with plasterboard”
Thermal Conductivity Insulation:20mm-35mm: 0.023 W/m.K
40mm-75mm: 0.021 W/m.K
80mm-95mm: 0.020 W/m.K
Thermal Conductivity Plasterboard:0.17 W/mK
EmittanceE0.03 (silver foil face)
Panel Thickness35mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm
Panel Dimensions2400mm x 1200mm (2.88m2);
2700mm x 1200mm (3.24m2);
3000mm x 1200mm (3.6m2)
Also can be cut to custom lengths and sizes
Edge TreatmentPlasterboard tapered edge and square edge PIR
Product R Values
Product ThicknessDeclared Product R-value at 23ºC
Product Testing
Complies to AS/NZ 4859.1:2018 and NCC/BCA Compliant
Group ClassificationAS 5637.1Group 1 Lining*
Ignitability IndexAS 1530.30 Range 0-20**
Spread of Flame IndexAS 1530.30 Range 0-10**
Heat Evolved IndexAS 1530.30 Range 0-10**
Smoke Developed IndexAS 1530.31 Range 0-10**
Compressive StrengthAS 2498.3>152 (kPa)
Water Vapour ResistivityASTM E96>100 (MNs/gm)

* Applies to compliant plasterboard facing tested to AS/NZS 3837.1
**Applies to the PIR core
Water UseNo water used in the manufacturing process
Processing Greenhouse
gas emissions No Greenhouse gas emissions in manufacturing process
Ozone depleting substancesNone present in finished product, zero ODP
PIRMAX contains no CFC’s or HCFC’s
Occupational Health & SafetyNot Hazardous
No Formaldehyde
Does not release Volatile Organic Compounds (VOC)
TransportAustralian made & owned, not transported from overseas, minimal carbon footprint
Energy EfficientLong term energy savings and environmental benefits
Specification Notes
When specifying, state the following:

Product Name: PIRMAX HRP PANEL  _____mm
The insulation to be installed shall be PIRMAX HRP Panel PIR insulation laminated with plasterboard, comprised of Modified Polyisocyanurate Rigid Panel with 10mm plasterboard facing on one side and a foil facing on the other, and an R Value of _____. Product is Australian Made, manufactured by PIRMAX Pty Ltd and shall be installed in accordance with manufacturers installation instructions.

Installation Instructions