Architectural Steel Cladding Profile

TRS Interlocking Panel Architectural Steel Cladding

TRS Interlocking Panel

TRS Interlocking architectural steel roofing and cladding with recessed joint appearance.

TRS Interlocking Panels feature an interlocking groove that creates an elegant recessed joint appearance. Unlike traditional panels, they do not require a plywood substrate. Instead, they are secured directly onto 20 mm cavity battens using concealed mechanical fixings.

This system can be installed horizontally or vertically over synthetic building wrap and 20 mm cavity battens, much like timber weatherboards. Its design offers versatility, easy installation, and a sleek, seamless finish.

Application

Interlocking panels are perfect for both new homes and existing buildings. They are installed similarly to conventional weatherboard planks, delivering a finished appearance that closely mimics Rusticated Weatherboard wood paneling. This provides a timeless and sophisticated look.

Areas of application could include:

  • Facade
  • Soffits
  • Fascias
  • Chimney Cladding
  • Interior Feature Walls

Panel Details

Only suitable for wall cladding;
Negative joint size – 2 – 25 mm;
Variable Pan size from 155 to 260 mm unsupported;
Pan size over 260 mm (not recommended) will require back support. We will use fire rated POLYFOAM 24 mm;
Maximum panel length – 6.0 m for pre-painted steel; 4.0 m for any other material;
Minimum panel length – 500 mm (0.5 m)

Only can be manufactured in the following materials:

  • Copper
  • Stainless Steel
  • Titanium Zinc
  • Aluminum
  • Vitor+, Vitor+ZX, Vitor+MG or LUX

Dimensions

Panel Depth: Fixed at 24 mm.
Flat Pan Width: Variable between 155 mm and 260 mm without requiring back support. For widths exceeding 260 mm, backing may be needed. For panel widths over 400 mm, consult The Roofing Store Technical Team for guidance.
Recessed Joint Width: Adjustable between 2 mm and 25 mm.
Maximum Panel Length: Depends on the material due to thermal expansion and contraction:

  • Copper, Zinc, Aluminium, or Stainless Steel: Maximum recommended length is 4.0 m.
  • Pre-Painted Steel: Maximum recommended length is 6.0 m.
The Roofing Store Manukau branch building featuring interlocking panel cladding.
Diagram of the interlocking panel system with adjustable pan and joint dimensions.

Span Table

LocationSpan
High ~ Extra High Wind Zone600 mm
Medium700 mm
Low800 mm

See below for TRS Interlocking Panel product specifications and downloadable files:

KiwiColour® Options – Vitor+, Vitor+ZX and Vitor+MG

Common Features

Five Layers of Protection:
Vitor+, Vitor+ZX, and Vitor+MG all feature a durable five-layer system:
* Optional protective film
* Topside: 20μm polyester topcoat + 5μm primer
* Backside: 5μm epoxy primer
* Metallic coating
* Pre-treatment layer

Standards & Compliance:
All products are manufactured in accordance with AS/NZS 2728:2013 and meet the New Zealand Building Code requirements for:
* B1: Structure
* B2: Durability
* C3: Fire Safety
* F2: Hazardous Building Materials
* They are also non-combustible, classified as Group 1S under C/AS2.

Steel Substrate Options:
Available in 0.4mm and 0.55mm thicknesses to suit different structural and design requirements.

Wide Colour Range:
Offered in a broad palette, all finishes combine aesthetics with long-term performance—helping designers realise their vision with confidence.

Key Differences

Vitor+:
Ideal for moderate environments, Vitor+ offers dependable performance where exposure to harsh conditions is limited.

Vitor+ZX:
Designed for harsh environments, including coastal and high UV areas. It provides:
* Superior durability
* Enhanced gloss finish
* Extended warranties (when used in moderate settings)

Vitor+MG:
Built for maximum corrosion resistance, especially in coastal areas.
It features an advanced aluminium-zinc-magnesium alloy coating (unlike the aluminium-zinc coating of Vitor+ and Vitor+ZX), delivering:
* Exceptional durability
* Improved formability
* Long-term protection in aggressive environments

Please note: all colours are available in 0.40mm. Colours marked with * are also available in 0.55mm.

Colour & Finish Options – Lux

Lux is a revolutionary steel coating that will transform how you approach building materials. Lux combines the strength and durability of prepainted steel with the designer aesthetic of materials like wood, zinc, corten, fabric, or stone. Like our other steel coatings, Lux is engineered to provide maximum colour retention, exceptional formability, superior durability, and outstanding gloss in any weather condition.

Logo for Lux Steel Metal Roofing and Cladding Protective Coating

Please note:
All Lux finishes are available in 0.55mm base metal thickness, Grade G300, and are suitable for a wide range of architectural roofing, internal and external wall claddings, rainwater goods, and general applications.

While every effort has been made to match the displayed colours as closely as possible to the true colours, digital colour limitations may result in slight variations. For an exact colour match, please request a physical colour swatch from your local store.

Some profiles may have a limited colour range. For more information, consult with your local branch.
You can find the nearest local store by clicking here.

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