At KOROK, we are committed to delivering the highest quality fire and acoustic rated wall systems, and today we are excited to introduce a major upgrade in our materials. We are transitioning to the new COLORSTEEL® MAXAM™, which will replace our previously used COLORSTEEL® ENDURA® and COLORSTEEL® MAXX® ranges. This change marks a significant advancement in the technology and performance of our wall systems.

What is COLORSTEEL® MAXAM™?

COLORSTEEL® MAXAM™ combines the renowned quality and consistency of COLORSTEEL® with innovative ACTIVATE™ technology. This new single substrate product solution is designed with corrosion resistance and longevity in mind, making it suitable for most of New Zealand’s environmental conditions.

The Benefits of ACTIVATE™ Technology

• Strategic Positioning: The aluminium/zinc/magnesium compounds in the coating are strategically positioned to activate at the start of weathering, providing sacrificial protection when it is most needed.
• Robust Barrier Formation: Magnesium compounds encourage the formation of a robust barrier at cuts and scratches, slowing the rate of subsequent corrosion.
• Long-Lasting Protection: The magnesium compounds ‘activate’ the metal coating, resulting in more effective, longer-lasting sacrificial protection.

Transitioning to the Future

The introduction of COLORSTEEL® MAXAM™ reflects our commitment to innovation and excellence. By integrating this advanced material into our KOROK wall systems, we are ensuring that our products not only meet but exceed the highest standards of performance and durability. For more information on COLORSTEEL® MAXAM™ and its benefits, please contact our customer service team.

Recent Articles

For over  25 years, KOROK has been a trusted provider of high-performance fire and acoustic walls for the multi-level construction market. Now, with the introduction of the KOROK KIR high-performance intertenancy apartment wall systems, KOROK offers comprehensive solutions for seamless floor plate transitions.

Our systems integrate lift cores, riser ducts, stair cores, hallways, and apartments into one streamlined package. Experience unparalleled fire, seismic, acoustic, and safety protection with KOROK – your all-in-one solution for modern construction needs.

Simplify with KOROK: Combining Performance and Safety

Experience the perfect blend of simplicity and performance with KOROK. Our range of IT wall solutions incorporates fire protection, seismic deflection, passive safety, and acoustic efficiency, all while eliminating complex build-ups. KOROK delivers unmatched performance, safety, and simplicity for your construction needs.

Intertenancy Apartment Solution

• Early Installation
• Solid & Secure
• Tested performance
• STC rating from 55 up to 69
• Fire rating from FRR 30 to FRR 120
• Simplified program continuity
• Waste reduction with custom lengths

Read More

Wall Transition

• Tested Fire Door Solutions
• Simple transitioning for interface junctions

Corridor, Service Riser & Ducts

• Multiple wall design solutions
• Single-sided fix
• Simple passive fire service penetrations allowing for early services installation
• Programme Continuity
• Reduction in scaffolding
• Early Inspection & installation

Lift Cores

• Structural steel infills
• Intumescent coated steel connections
• Slab to Slab options
• Early fix services & lift components
• Added fall protection
• Simple penetration solutions
• Door head solutions
• Early installation & sequencing continuity

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Stair Core & Scissors Stairs

• Safe exit
• Linings are optional
• Prefinished colour coated panel options
• Prefinished panel provide a cost-effective, single fixed solution
• Reduced structural steel
• Multiple installation solutions
• Programme continuity
• Small crew to install
• Lightweight simplicity
• Handrail connection

Read More

Recent Articles

High‑Performance Fire and Acoustic Wall Systems

KOROK® provides a full range of engineered fire and acoustic wall systems designed for New Zealand’s residential, commercial, and industrial buildings. Our systems are rigorously tested, easy to install, and built to meet the latest compliance requirements. Explore our solutions for intertenancy walls, external façades, cinemas, industrial spaces, lift shafts, risers, ducts, and scissor stair applications.

KOROK® has 2-way fire-rated wall systems for fire separation of Scissor Stairs or any Stairs.

KOROK® Scissor Stair Systems are proprietary, non-loadbearing, two-way fire-rated wall systems designed to provide fire and acoustic separation between independent stair flights within scissor stair configurations or other stair arrangements.

The system utilises 78mm thick interlocking KOROK® panels installed between two independent stair stringers to form a continuous fire-resisting barrier. Panels may be oriented vertically, horizontally, or in combination to suit stair geometry and construction sequencing requirements.

The system is BRANZ tested and Warringtonfire assessed, and is intended to meet or exceed the performance requirements of the New Zealand Building Code (NZBC) and NCC Australia within the defined scope.

How the System Works

KOROK® Scissor Stair Systems are constructed using 78mm thick panels comprising roll-formed galvanised or colour steel outer shells with an aerated concrete core and interlocking tongue-and-groove profiles, forming a continuous, tightly sealed wall plane that reduces the risk of acoustic leakage between stair flights. The system is non-combustible and provides two-way fire resistance when exposed from either side. In fire conditions:

• Horizontal fire resistance is achieved through a quadrilateral fire-resistant section formed between the two independent stairs
• Vertical fire resistance is achieved through the wall-to-stair stringer boundary condition

KOROK® Scissor Stair Systems provide independently tested Fire Resistance Ratings up to –/120/120 and –/60/60 depending on configuration, while the 78mm interlocking panels deliver acoustic performance up to STC 76, meeting or exceeding NZBC Clause G6 requirements through their aerated concrete core and tightly sealed joint geometry.

Download Technical Data and CAD Drawing 

CASE STUDY

Voco-HIE Hotel

KOROK® was involved in the construction of a dual-branded hotel in Auckland’s Central Business Precinct. Located at the corner of Albert and Wyndham Streets, this project, led by Icon NZ, began in 2019 and was completed in December 2021. The VOCO-HIE development is a 38-story building, standing approximately 135 meters tall, making it one of New Zealand’s tallest structures. The building offers expansive views across Waitemata Harbour and Mount Eden, featuring a modern design.

Building Design and Features

The dual-branded hotel includes:

• A 4-story glazed podium with separate entries for both hotels.
• Guest services such as an all-day restaurant, bar, fitness center, and retail spaces.
• 294 Holiday Inn Express rooms on the lower floors.
• 200 VOCO Hotel rooms on the upper floors.

The VOCO brand, chosen by global hotel operator IHG, emphasizes sustainability through initiatives like recycling plastic bottles for bedding and using honey from onsite bees. The Auckland VOCO hotel continues these practices, alongside the ‘Me Time’ concept focusing on premium beds, superior showers, user-friendly technology, and innovative lighting.

KOROK®’s Contribution

KOROK® provided high-performance fire and acoustic wall systems for the VOCO-HIE development. Key highlights include:

• Fire Protection: KOROK® systems offer up to a 2-hour fire rating, ensuring strong fire safety.
• Acoustic Performance: The systems exceed the minimum STC 55 rating for hotels, achieving an STC 63 rating, ideal for ensuring a quiet environment for guests.
• Design and Installation: KOROK®’s interlocking panels simplified and sped up installation, reducing labor costs and construction time. The panels’ clip-together design allowed for easy installation by a small crew, with comprehensive installation guides and on-site training provided.
• Space Efficiency: The small footprint of KOROK® panels maximized usable floor space, offering developers greater flexibility in building design and planning.

Environmental Commitment

KOROK® panels were manufactured in New Zealand from locally sourced materials and were custom-made to minimize waste. They are fully recyclable and reusable, aligning with the sustainable ethos of the VOCO brand.

Collaboration and Innovation

KOROK® and Icon NZ collaborated closely to devise solutions for lift shafts and staircases, reflecting a commitment to quality and innovation in construction.

KOROK® was proud to contribute to the VOCO-HIE dual-branded hotel project, providing high-performance fire and acoustic wall systems that supported the building’s design and sustainability goals. This project showcased KOROK®’s dedication to quality and innovative building solutions.

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CASE STUDY

Dunedin’s Social Housing Project

In 2022, Dunedin’s Loan and Mercantile building was transformed into the Suzanne Lund Community Loft Apartments, a notable social housing development. This project, driven by Russell Lund of Lund South Ltd, showcases the practical application of 78mm KOROK panels Gen 2.

Proactive Design Leadership

Russell & Suzanne Lund’s proactive approach was essential in bringing this project to fruition. their decision to use KOROK panels ensured that the building met necessary safety and performance standards. The Lund’s leadership in design and development has set a positive example for integrating heritage preservation with modern housing needs.

Social Housing Impact

The Suzanne Lund Community Loft Apartments provide 30 social housing units, managed by the Salvation Army. This includes 28 one-bedroom units, one two-bedroom unit, and one three-bedroom unit, along with communal facilities such as a support office, community room, courtyard, drying room, and bike storage. This development addresses the need for social housing in Dunedin, offering a supportive environment for low-income tenants.

Flexibility of KOROK Panels

KOROK was chosen for its flexibility in meeting the project’s requirements. lightweight nature and strong performance were key in adapting the heritage structure to modern standards without compromising its historical integrity. This flexibility makes KOROK panels a trusted choice for diverse construction projects. The 78mm KOROK panels Gen 2, used extensively in this project, are known for their high performance and lightweight design. These fire and acoustic-rated panels are made from zinc-coated steel strips, meeting AS/NZS1397:2001 standards. KOROK panels offer excellent fire resistance and acoustic performance, making them suitable for various construction needs.

The use of 78mm KOROK panels Gen 2 in the Suzanne Lund Community Loft Apartments highlights their effectiveness in demanding construction projects. This case study demonstrates KOROK’s role in transforming a heritage building into a valuable social housing resource and emphasizes Russell & Suzanne Lund’s proactive leadership in creating community-focused housing solutions.

Related Projects

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CASE STUDY

Hobsonville Point: Enhancing Fire and Acoustic Protection with KOROK® Intertenancy Systems

Bringing Kiwi Ingenuity to Hobsonville Point Homes

Here at KOROK®, we’re stoked to have been part of the transformation of the old Hobsonville airbase into a new community. Our innovative KOROK KIR Intertenancy Residential Walls have been key in shaping around 3000 homes across this significant slice of land, including standout spots like the Te Uru Apartments, Walter Merton Road Terraces, Nugget Avenue Terraces, and Buckley A Precinct.

Being part of the Hobsonville Point development really showcases our ability for coming up with smart solutions that tackle the real-world challenges of modern building, especially when it comes to keeping fires at bay and cutting down on noise. Traditional wall setups in flats and hotels usually lean on linings to do this job. But our KIR walls change the game by ditching the need for these linings up top, making the whole building process simpler and slicker.

Smoother Sailing in Building and Design

Our walls have made it quicker and easier to get buildings up at Hobsonville Point. That’s good news for the teams on the ground and means residents can start enjoying their new digs sooner.

Keeping Costs Down

Thanks to the technology behind our KIR panels, we’ve cut down on waste, which means saving some dollars. Those savings can help make other parts of the development even better, making the whole neighbourhood a top spot to live.

Top-Notch Fire and Sound Safety

We’ve put our walls through the wringer to make sure they’re up to scratch for fire safety and noise control. That means folks living in Hobsonville Point can sleep easy, knowing they’ve got solid protection around them.

Built Solid for Extra Peace of Mind

The sturdy design of our walls means homes are not just safe but also built to last. That’s a big plus for anyone calling Hobsonville Point home, offering a secure spot for years to come.

Committed to Excellence in Innovation and Community Building

From the lively look of the Te Uru Apartments to the tidy and thoughtful design of the Walter Merton Road Terraces and the spot-on style of Buckley A Precinct, our KIR panels have been a foundation for success, delivering the goods on fire safety and quiet living. As we look back on our role at Hobsonville Point, we’re chuffed to have delivered solutions that not only tick the boxes for what’s needed in today’s building scene but also help forge strong, safe, and green communities. Our dedication to coming up with better ways to do things will keep us at the forefront of making homes better for Kiwis everywhere.

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High Performing and Lightweight

KOROK® 78mm galv panels are precision rollformed from high-quality zinc-coated steel strips. The steel used for our shells meets the AS/NZS1397:2001 standard, ensuring consistent strength and durability. Each panel features a base metal thickness of 0.4 mm B.M.T. with a Z275 zinc coating, enclosing a lightweight aerated concrete core. This combination delivers a nominal weight of just 10.2 kg per lineal metre, making KOROK® panels easy to handle and install while maintaining exceptional structural performance.

Our panels are designed for versatility and high performance, offering superior fire and acoustic ratings for a wide range of applications. They provide fast, efficient installation with minimal on-site modifications, reducing labour costs and program delays. The lightweight nature of KOROK® panels also eases transport and handling, particularly on multi-storey construction projects.

Backed by over 20 years of experience, KOROK® panels are BRANZ-appraised, Kiwi-owned, and widely trusted across New Zealand for projects ranging from residential developments to complex commercial constructions. Our systems are designed to simplify installation, maximise safety, and deliver long-lasting performance, making KOROK® the preferred choice for builders, architects, and developers seeking reliable fire and acoustic wall solutions.

High Performing and Lightweight

51mm KOROK® panels are rollformed from zinc coated steel strips. The steel from which the shells are manufactured conforms to AS/NZS1397:2001. Steel shells have a base metal thickness of 0.4mm B.M.T. with a Z275 zinc coating. These panels have an aerated concrete core and weigh nominally 10.2kg per lineal metre.

KOROK® produces 51mm panel. KOROK® 51mm panel provides a -/60/60 FRR and is perfectly suited for terraced house intertenancy walls and apartment intertenancy walls.  The narrower gauge allows you to keep more floor space as it isn’t taken up by walls.

Performance and Features

• Fire Rating: KOROK® 51mm panels provide a fire resistance rating of -/60/60 FRR, meeting stringent safety requirements for intertenancy walls in terraced houses and apartments.
• Acoustic Efficiency: Designed to reduce sound transmission, these panels ensure quieter living environments, making them an excellent choice for densely populated or high-traffic areas.
• Space-Saving Design: The 51mm thickness allows for slimmer walls, helping to maximize valuable floor space without compromising structural integrity or performance.

KOROK® 51mm Galv panels are used for:

• KOROK® Intertenancy Terraced Housing Wall Systems
• KOROK® Intertenancy Apartment Wall Systems

Applications and Systems

• Vertical Orientation: Panels are installed vertically and secured to timber or steel framing with aluminum brackets.
• Versatility: Compatible with wall framing, insulation, and linings specified within the system appraisal, ensuring seamless integration into your building project.
• Scope of Use: Appraised for all buildings of all importance levels as defined by AS/NZS 1170.