Insulated
Roofing
A complete range of insulation products for metal roofing and wall systems — from Anticon blankets and Soundscreen acoustic insulation to factory-laminated PIR/PUR insulated panels, glasswool batts and reflective foil sarking. All products NCC energy compliance ready.
NCC Minimum R-Values by Climate Zone
(NCC 2022 — Class 1 & 10 buildings)Minimum total R-values for roofs and walls. Actual requirements vary by building class, climate zone and construction type — consult your certifier or energy assessor.
Anticon is a glasswool blanket with a reflective foil facing, designed to be installed directly under metal roofing sheets. It provides thermal insulation, condensation control and acoustic dampening in one product. Available in a range of thicknesses and R-values to suit residential, commercial and industrial applications.
| Product Code | Description | Pack / Roll | |
|---|---|---|---|
| ANTICON-60-R1.3 | Anticon 60mm — R1.3 — 1350mm wide | Roll 15m² | |
| ANTICON-75-R1.5 | Anticon 75mm — R1.5 — 1350mm wide | Roll 12m² | |
| ANTICON-100-R2.0 | Anticon 100mm — R2.0 — 1350mm wide | Roll 10m² | |
| ANTICON-120-R2.5 | Anticon 120mm — R2.5 — 1350mm wide | Roll 8m² | |
| ANTICON-150-R3.0 | Anticon 150mm — R3.0 — 1350mm wide | Roll 6m² | |
| ANTICON-200-R4.0 | Anticon 200mm — R4.0 — 1350mm wide | Roll 5m² | |
| ANTICON-60-R1.3-1800 | Anticon 60mm — R1.3 — 1800mm wide | Roll 15m² | |
| ANTICON-100-R2.0-1800 | Anticon 100mm — R2.0 — 1800mm wide | Roll 10m² | |
| ANTICON-150-R3.0-1800 | Anticon 150mm — R3.0 — 1800mm wide | Roll 6m² |
* R-values and dimensions are indicative. Contact us for current stock, NCC compliance advice and project pricing.
Foil-faced glasswool blanket for use in roof and wall systems where a reflective vapour barrier is required. The foil facing reflects radiant heat and acts as a vapour retarder, reducing condensation risk in metal building envelopes. Suitable for use with COLORBOND® roofing and wall cladding.
| Product Code | Description | Pack / Roll | |
|---|---|---|---|
| FOIL-50-R1.1 | Foil blanket 50mm — R1.1 — 1350mm wide | Roll 20m² | |
| FOIL-75-R1.5 | Foil blanket 75mm — R1.5 — 1350mm wide | Roll 15m² | |
| FOIL-100-R2.0 | Foil blanket 100mm — R2.0 — 1350mm wide | Roll 10m² | |
| FOIL-120-R2.5 | Foil blanket 120mm — R2.5 — 1350mm wide | Roll 8m² | |
| FOIL-150-R3.0 | Foil blanket 150mm — R3.0 — 1350mm wide | Roll 6m² | |
| FOIL-50-R1.1-WALL | Foil blanket 50mm — R1.1 — Wall grade — 1200mm wide | Roll 20m² | |
| FOIL-75-R1.5-WALL | Foil blanket 75mm — R1.5 — Wall grade — 1200mm wide | Roll 15m² | |
| FOIL-100-R2.0-WALL | Foil blanket 100mm — R2.0 — Wall grade — 1200mm wide | Roll 10m² |
* R-values and dimensions are indicative. Contact us for current stock, NCC compliance advice and project pricing.
Why Insulate Your Metal Roof?
Technical Reference
Standards & R-Value Requirements
NCC Section J · AS/NZS 4859 · Climate zone R-value minimums · Application guidance
NCC 2022 — Section J
Energy efficiency for buildings
Section J of the National Construction Code sets minimum R-value requirements for roof and wall insulation in Class 2–9 buildings. Requirements vary by climate zone (1–8) and building class. Roof insulation R-values range from R1.4 (Zone 1 — tropical) to R6.3 (Zone 7 — alpine) for commercial buildings.
AS/NZS 4859.1:2018
Materials for the thermal insulation of buildings
Specifies test methods and performance requirements for thermal insulation materials including glasswool blankets (Anticon, Soundscreen), foil-faced products and PIR panels. R-values stated on product labels are tested and certified to this standard. Declared R-values are minimum values at 23°C mean temperature.
BASIX (NSW) / NatHERS
Residential energy efficiency compliance
NSW BASIX and NatHERS (National House Energy Rating Scheme) require residential buildings to achieve a minimum 6-star energy rating. Roof insulation is typically the single largest contributor to the thermal envelope score. Anticon R2.5–R4.0 under metal roofing is commonly specified to achieve 6-star compliance in temperate climates.
AS 1530.3:1999
Fire hazard properties — Spread of flame index
PIR (polyisocyanurate) insulated roof panels are tested to AS 1530.3 for spread of flame and smoke developed index. PIR panels with steel facings achieve a Spread of Flame Index of 0 and Smoke Developed Index ≤3, meeting the requirements of NCC Specification C1.10 for non-combustible construction in Class 5–9 buildings.
NCC 2022 Minimum Roof R-Values — Class 1 Residential (Indicative)
| Climate Zone | Description | Min. Roof R-Value | Recommended Product |
|---|---|---|---|
| Zone 1 | High humidity summer, warm winter (Darwin, Cairns) | R1.4 | Anticon 60mm R1.3 + foil |
| Zone 2 | Warm humid summer, mild winter (Brisbane, Townsville) | R2.7 | Anticon 100mm R2.0 + foil |
| Zone 3 | Hot dry summer, cool winter (Perth, Adelaide) | R2.7 | Anticon 100mm R2.0 + foil |
| Zone 4 | Mixed, moderate (Sydney, Melbourne) | R3.2 | Anticon 120mm R2.5 + foil |
| Zone 5 | Warm temperate (parts of VIC, SA) | R3.2 | Anticon 150mm R3.0 + foil |
| Zone 6 | Mild temperate (Canberra, Ballarat) | R4.1 | Anticon 200mm R4.0 + foil |
| Zone 7 | Cool temperate (alpine areas) | R5.1 | PIR panel or double-layer glasswool |
* Indicative values only. Actual NCC requirements depend on building class, construction type and compliance pathway. Verify with your certifier or energy assessor.
Product Selection by Application
Residential Sheds
Anticon 75–100mm under COLORBOND® roofing; foil facing down; staple to purlins before sheeting
Commercial Buildings
Anticon 150–200mm for NCC Section J compliance; Soundscreen where rain noise is a concern
Industrial Warehouses
Anticon 60–100mm for condensation control; PIR panels for temperature-controlled storage
Cool Rooms / Freezers
PIR panels 75–150mm; steel-faced both sides; tongue-and-groove joints for airtight seal
Acoustic Applications
Soundscreen 100–200mm; significantly denser than Anticon; reduces rain noise by 8–12 dB
Wall Insulation
Foil-faced blanket 50–100mm between wall girts; foil facing inward as vapour retarder
Disclaimer: R-values stated are declared minimum values per AS/NZS 4859.1:2018 at 23°C mean temperature. Installed R-values may differ from product R-values depending on installation quality, compression and air gaps. NCC minimum R-value requirements are subject to change — always verify current requirements with your building certifier or energy assessor before specifying. Steel Source Australia supplies materials only and does not provide energy compliance advice.
Need Help Choosing the Right Insulation?
Our team can help you select the correct R-value and product type for your climate zone, building class and budget. We supply insulation for residential sheds, commercial buildings and large industrial projects — with competitive bulk pricing and fast dispatch.