Structural Skins
Triboard skins provide strength and a stable substrate.
SIP Panel Specifications
Factory-manufactured structural insulated panel system with composite structural skins bonded to a continuous insulated core.
SIP Panel Core Inside
Composition Section
SIP Panel Composition
Each panel is formed from structural skins bonded around an insulated core, creating a rigid panel with consistent thickness, strength, and thermal performance.
Key Components of SIP Panels
Insulated Core
Fire-retardant EPS delivers continuous insulation & stiffness.
Adhesive System
Polyurethane adhesive creates permanent composite bonding.
Jointing & Sealing
Splines, screws, tapes & sealants transfer loads.
Panel Specification Overview
Select thickness based on structural requirements, energy performance targets, and project constraints.
Panel Thickness
Weight (kg/m²)
Indicative R-Value
Typical Use
113mm
~15
R2.8-3.1
Floors / Walls
163mm
~16
R4.0-4.6
Walls / Roofs
213mm
~17
R5.5-6.2
Walls / Roofs
263mm
~18.5
R6.9-7.8
Roofs (higher performance)
313mm
~20
R8.3-9.3
Highest roofs performance
Applications
Floor PanelsWall PanelsRoof Panels
Floor Panels
Supersub floor panels replace traditional floor structures with a single load-bearing, insulated system for faster, more consistent builds.
Indicative Span Guide (Subject to Engineering)
Panel Thickness
Typical Maximum Span
113mm
Up to 2.4m
163mm
Up to 3.6m
Wall Panels
Supersub wall panels form a load-bearing structural envelope with integrated bracing, delivering stable, straight walls compatible with drained cavity cladding systems.
Wall Height & Load Configuration (Indicative)
Wall Height
Distributed Loads
Concentrated Loads
≤ 3.6m
Insulated splines
Timber splines
> 3.6m
Timber splines
Timber splines
Roof Panels
Supersub roof panels combine structure and insulation into one system for strong diaphragm performance, high thermal efficiency, and low or mono-pitch roof designs.
Indicative Span Guide (Subject to Engineering)
Panel Thickness
Typical Maximum Span
113mm
Not recommended
163mm
Up to 3.6m
213mm+
Up to 4.0m (material-limited)
Structural, Thermal & Fire Performance
Structural Performance
Test-backed structural capacities with engineering-led specification and Producer Statements where required.
Thermal Performance
Continuous insulation supports NZBC H1 energy efficiency and reduces thermal bridging.
Fire Performance
Demonstrates reaction-to-fire performance. Use tested systems for fire-rated assemblies where required.
Custom Panel Sizes & Manufacturing Capability
Standardised widths with custom lengths available
Pre-cut openings for doors and windows (design-dependent)
Factory-installed splines and labelled panels for assembly
Optimised for transport and predictable on-site workflow
Our Suppliers
SuperSIP™ Panel Specifications
Manufacturing Quality & Supply Chain
Manufactured under controlled conditions for consistent tolerances, reliable bonding, and repeatable performance across projects.
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Controlled Production Quality
Quality Inspection Checkpoints
Consistent Material Sourcing
Prepared for Efficient Transport
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