IBOARD G1

IBOARD G1
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Overview

Group 1 Soffit Insulation Board

IBOARD G1 soffit insulation board is a rigid under-slab insulation board composed of a closed-cell thermoset polyisocyanurate foam core bonded to a 6mm non-combustible fibre cement facer. Tested in accordance with relevant AS/NZ standards, IBOARD G1 soffit insulation provides the highest level group 1 fire rating in accordance with AS 5637. Providing higher R-values from less thickness, IBOARD G1 soffit insulation allows increased clearance height within carparks while still meeting thermal requirements making it the safest and most practical option for all concrete soffit and under-slab applications.


Group 1 Fire Rating*

IBOARD G1 soffit insulation has a non-combustible fibre cement facer which achieves a Group 1 fire rating in accordance with AS 5637 for superior safety and compliance in all under slab soffit applications.


Unlimited Colours

IBOARD G1 soffit insulation has an attractive light grey fibre cement finish which can be left untreated, painted insitu, or supplied prefinished in unlimited custom colours to your selection.


Superior Ageing Performance

Due to it's outstanding resistance to moisture and excellent compressive strength, IBOARD G1 soffit insulation offers much better thermal ageing performance than other products.


100% Non-corrosive

Unlike some other insulation products, IBOARD G1 core material is 100% non-corrosive and will not cause corrosion issues if it comes in contact with structural steel or fixings.


Zero Formaldehyde

IBOARD G1 soffit insulation contians zero traces of formaldehyde and it is fibre-free making it non-irritant to the skin, non-allergenic and safer compared to other products.


Australian Fire Testing*

IBOARD G1 soffit insulation has NATA accredited testing to relevant Australian fire standards and it's Group 1 fire rating means it is compliant with NCC 2019 for all lining applications.


Environmentally Friendly

IBOARD G1 soffit insulation is manufactured in Europe under strict quality control using only CFC/HCFC free blowing agents which have Zero Ozone Depletion Potential (ODP).


Micro Cell Technology

IBOARD G1 has a much finer cell structure with extremely low water absorbtion compared to other products (<0.6%) so it's R-value is retained long-term and it is rot and mould proof.


*Group 1 fire rating applies to the exposed fibre cement facing in accordance with AS 5637 and NCC 2019 requirements.

Availability

Availability

Code R-value

Description

Lead Time

MOQ

IBG362412 R1.38

IBOARD 36mm G1 Insulation, 2400 x 1200mm

Stock

1 Board 

IBG462412 R1.84 IBOARD 46mm G1 Insulation, 2400 x 1200mm Stock 1 Board
IBG562412 R2.29 IBOARD 56mm G1 Insulation, 2400 x 1200mm Stock 1 Board
IBG662412 R2.75 IBOARD 66mm G1 Insulation, 2400 x 1200mm Stock 1 Board
IBG762412 R3.20 IBOARD 76mm G1 Insulation, 2400 x 1200mm Stock 1 Board
IBG862412 R3.66 IBOARD 86mm G1 Insulation, 2400 x 1200mm Stock 1 Board
IBG962412 R4.11 IBOARD 96mm G1 Insulation, 2400 x 1200mm Stock 1 Board
IBG1062412 R4.57 IBOARD 106mm G1 Insulation, 2400 x 1200mm Stock 1 Board

 

Technical Data

Test Item

Standard

Result
Thermal Conductivity (Insulation) W/mK 0.022*
Thermal Conductivity (Fibre Cement) W/mK 0.23*
Spread of Flame Index AS 1530.3 0**
Smoke Developed Index AS 1530.3 1**
Group Rating AS 5637 Group 1**
Average Specific Extintion Area m2/kg <250**
Smoke Growth Rate (SMOGRA) m2/s2x1000 <100**
Tensile Strength Perpendicular to Faces EN 1607 80 kPa
Compressive Strength EN 826 >110 kPa
Compressive Strength at 10% Deformation EN 826 >150 kPa

 

*Material R-values are calculated based on the insulation thickness at 0.022 W/mK in addition to the 6mm fibre cement at 0.23W/mK. **Fire testing applies to the exposed compliant fibre cement facing in accordance with NCC 2019 requirements.

Downloads

Support

Customer Support

For same day design assistance and technical support please contact our sales team directly on the below contact details. All our sales and technical staff are locally based so we can provide the best possible service and support for your project. You can also request a technical data sheet or project quotation using the below email links;

Builder & Contractor Enquiries Architect & Design Enquiries
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Rick Wallis Ben Wallis
Product Manager Specification Manager
0437 006 550 0437 006 325
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