Designing townhouses, apartments, and terraced housing is always a balancing act. On one hand, you need to ensure absolute compliance with fire and acoustic separation standards. On the other, you’re under pressure to keep the build practical, efficient, and cost-effective. The systems you specify can either make that process seamless – or create unnecessary challenges. That’s why more architects are turning to KOROK® Fire and Acoustic Wall Systems

Why Architects Choose KOROK® in Residential Projects

Confidence in fire and acoustic performance is at the heart of KOROK®. Every system has been thoroughly tested, BRANZ-appraised, and designed to meet New Zealand’s strict compliance requirements. For residential projects, this reliability gives peace of mind – whether you’re working on attached homes or a multi-level apartment complex.

Equally important is speed. KOROK® panels are lightweight, pre-finished, and engineered with a steel shell and aerated concrete core. This reduces the need for multiple linings and accelerates installation, keeping builds moving forward and helping architects see their designs realised without compromise.

KOROK® also makes detailing simpler. The systems are straightforward and practical, allowing you to integrate fire and acoustic separation into your plans without excessive complexity. This ease of design translates into fewer site issues, ensuring a smoother construction process overall.

And then there’s sustainability. With panels that can be reused across projects, KOROK® helps reduce construction waste throughout the building lifecycle. For architects working to meet client expectations and growing environmental standards, this makes it a solution that balances performance with responsibility.

Designed for Residential Intertenancy

From terraced housing to multi-level apartments, KOROK® Intertenancy Systems are designed to integrate seamlessly into residential projects. They provide the reliable fire and acoustic separation you need, while also reducing time spent on problem-solving during construction.

Supporting Architects Beyond the Build

KOROK® goes further than supplying systems. Through CPD-accredited presentations, we provide architects and specifiers with practical knowledge that can be applied directly to projects – all while earning valuable CPD points. It’s one more way we support your professional growth alongside delivering building solutions.

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

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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

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Recent Articles

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

Our innovative KOROK® Scissor Stair wall systems are BRANZ-tested and Warringtonfire-assessed, ensuring compliance with New Zealand’s fire safety standards. These systems are rated up to a Fire Resistance Rating (FRR) of -/120/120, offering robust protection for critical building areas. KOROK® Scissor Stairs Systems cater to most common scenarios requiring fire resistance in stair configurations. These walls are constructed using 78mm thick, horizontally and/or vertically oriented KOROK® panels, designed to fit seamlessly between two independent stair stringers in scissor stairs configurations. The systems feature self-supporting, non-load-bearing walls that can be built using horizontally or vertically stacked panels, or a combination of both. This flexibility ensures adaptability to a wide range of building designs.

Key Benefits of KOROK® Scissor Stairs Fire-Rated Wall Systems:

• Two-way fire protection: Rated up to FRR -/120/120 for comprehensive fire separation.
• No height limitations: KOROK® walls can be installed without restrictions on wall height, in both horizontal and vertical configurations.
• Structural simplicity: No additional structural support required beyond attachment to stair landings and stair stringers.
• Fast, efficient installation: Lightweight interlocking panels make installation faster and more cost-effective compared to conventional systems.

KOROK® Scissor Stairs wall systems combine fire safety, acoustic performance, and cost efficiency, making them the ideal choice for builders and developers.

Download Technical Data and CAD Drawing 

When it comes to passive fire penetrations, KOROK® leads the way with innovative solutions that ensure fire safety without compromising functionality.

At KOROK®, we are committed to providing fire-rated wall systems that prioritize safety, durability, and performance. Our advanced KOROK® panels are specifically designed to allow seamless integration of passive fire penetrations, including service ducting and pipes, while maintaining the structural and fire integrity of the wall.

What Are Passive Fire Penetrations?

Passive fire penetrations are openings or pathways in fire-rated walls or floors that allow services such as plumbing, electrical cables, or ductwork to pass through. These penetrations are essential for building functionality but must be carefully designed to prevent the spread of fire and smoke. KOROK® panels are engineered to make the creation and sealing of these penetrations straightforward and effective, ensuring compliance with strict fire safety standards.

Fire Stopping Guidance Documents

At KOROK®, we understand that ensuring fire safety goes beyond the wall system itself – it’s also about how penetrations and services are detailed. That’s why we’ve collaborated with leading experts in passive fire protection to develop a suite of manuals that provide fully tested, NZBC-compliant solutions for penetrations in KOROK® fire-rated wall systems.

Each manual has been developed in partnership with industry specialists and contains tested configurations, installation guidance, and compliance references, making it easier for designers, engineers, and contractors to select the right firestop solutions.

Our firestop manuals, developed with industry partners, provide tested and NZBC-compliant solutions for service penetrations in KOROK® fire-rated wall systems.

Why Choose KOROK® for Passive Fire Penetrations?

• Easy Formations for Penetrations: KOROK® panels simplify the creation of openings for ducting and plumbing. The lightweight yet robust design makes it easy to form precise and efficient penetrations without compromising fire safety or wall integrity.
• Maintained Wall Integrity: Even with multiple passive fire penetrations, KOROK® panels ensure the overall wall system retains its fire rating. This is crucial for preventing fire and smoke from spreading across compartments in a building.
• Versatile Applications: Whether your project involves commercial spaces, residential apartments, or industrial facilities, KOROK® passive fire penetrations provide a reliable and efficient solution tailored to meet your needs.
• Compliance with Building Codes: KOROK® panels are rigorously tested and meet or exceed New Zealand’s building code requirements for passive fire protection. This gives architects, engineers, and builders confidence in the safety and performance of their projects.

Service Penetrations – KOROK® 51mm & 78mm Panel

CASE STUDY

Nugget Avenue Terraces – Premium Terraced Living in Hobsonville Point, Auckland

Discover Modern Living at Nugget Avenue Terraces

Nestled in the vibrant community of Hobsonville Point, Auckland, the Nugget Avenue Terraces offer contemporary, safe, and sustainable living. This terraced housing project was designed by Construkt Architects and expertly built by Universal Homes. The project highlights the cutting-edge KOROK Intertenancy Terraced Housing System, ensuring superior fire and acoustic performance for urban living.

Seamless Integration with Nature and Community

Nugget Avenue Terraces are designed to harmonize with the natural landscape of Buckley B Precinct. The homes showcase modern architectural elements, including bold colors and sustainable materials, making them a standout addition to the Hobsonville Point neighborhood. With a design that respects the land’s natural contours, these terraces offer not only aesthetic appeal but also an environmentally friendly solution.

Unmatched Safety with KOROK Intertenancy System

At the heart of this development is the innovative KOROK Intertenancy System, engineered for exceptional fire and acoustic protection. Traditional terraced housing systems often rely on internal linings for fire resistance, which can be compromised by penetrations. In contrast, KOROK’s system uses a robust steel and aerated concrete core, creating a highly durable barrier that significantly enhances fire protection between homes.

KOROK’s smart design ensures that in the event of a fire, its aluminum brackets melt on the fire-facing side, maintaining structural integrity on the opposite side. This safety feature gives residents peace of mind, knowing their homes are built with the highest safety standards in mind.

Why Choose KOROK for Terraced Housing?

• Fire-Rated Protection: KOROK panels create a solid barrier that withstands high temperatures, ensuring resident safety.
• Acoustic Efficiency: Enjoy quiet living spaces with superior sound insulation between homes.
• Durability and Strength: Built to last, KOROK systems offer enhanced protection against external elements, ensuring long-term durability.
• Faster Installation: With pre-finished panels, the KOROK system allows for quicker, more efficient construction, saving time and costs.

Collaboration for Quality

The success of Nugget Avenue Terraces is a result of the seamless collaboration between Construkt Architects and Universal Homes. Together, they delivered a high-quality living space that not only meets aesthetic and functional needs but also prioritizes safety, durability, and acoustic comfort.

Superior Fire and Acoustic Protection

The KOROK 78mm panels used in this project provide both fire resistance and noise reduction, making them the ideal choice for urban terraced housing developments. Their innovative design contributes to faster installation times and long-term reliability, enhancing the overall living experience.

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CASE STUDY

Boathouse Bay: A Showcase of Sustainable Community Living

Located at Snells Beach, just north of Auckland, Boathouse Bay by Crosson Architects has set a new standard in environmentally-conscious design, winning the prestigious title of Home of the Year 2024. This award-winning project offers a perfect blend of architecture and nature, creating a community-focused environment that celebrates New Zealand’s coastal lifestyle.

Innovative Design with a Coastal Influence

Inspired by the traditional Kiwi bach, Boathouse Bay reflects simplicity and connection to nature. The development embraces natural materials, muted tones, and open communal spaces, fostering a sense of unity among its residents. The layout encourages interaction, with thoughtfully designed pathways connecting homes to shared outdoor areas, reinforcing the idea of community living.

KOROK’s Role in Enhancing Safety and Sustainability

Central to Boathouse Bay’s design is the use of 51mm KOROK Intertenancy Terraced Housing Systems, which offer superior fire protection without compromising the project’s environmental goals. Our fire-rated systems ensure that the development remains safe, durable, and sustainable. The aluminum brackets included in the KOROK system safeguard the structure in the event of a fire, reinforcing both safety and structural integrity for terraced housing.

Setting a Benchmark for Future Living

Boathouse Bay is more than just a residential development—it’s an example of how modern, community-focused living spaces can integrate sustainability, safety, and social interaction. As the Home of the Year 2024, it stands as an inspiration for future projects that aspire to merge contemporary design with environmental stewardship.

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CASE STUDY

Walter Merton Road Terraces: A New Standard in Terraced Housing

Completed in 2019, the Walter Merton Road Terraces in Hobsonville Point, Auckland, became a benchmark for modern living. This project, a collaborative effort between Universal Homes and Construkt Architects, showcases a harmonious blend of design excellence and practical living solutions, offering 2, 3, and 4 bedroom terraced homes that cater to a diverse market.

Traditional terraced housing often relies on internal linings for fire resistance, which can be compromised by alterations or penetrations. KOROK® introduces a n innovative solution with its Intertenancy System, ensuring fire safety without depending on these internal linings. At its core, this system uses specially designed aluminium brackets to attach fire-resistant KOROK® panels between frames. In the event of a fire, the system is engineered to allow the side exposed to fire to detach safely, thanks to the melting of the aluminium brackets, while keeping the panels intact and supported on the opposite side. This innovative approach significantly enhances the building’s fire safety measures by maintaining a robust fire barrier between units.

The KOROK® system’s integration into the Walter Merton Road Terraces project highlights not only a commitment to resident safety but also to maintaining the architectural integrity of the development. Its ability to blend seamlessly with the project’s design characteristic, emphasising durability, is a testament to the system’s adaptability and effectiveness.

Through the Walter Merton Road Terraces project, KOROK® played an important role in creating safer and more resilient homes. This endeavour not only enhances the safety standards of terraced housing in Auckland but also sets a new benchmark for future developments in utilizing innovative solutions for fire safety and building durability.

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