Systems

Scissor Stairs – Fire and Acoustic Rated Protection

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.

Compliance with the New Zealand Building Code

KOROK® Scissor Stair Systems meet the stringent requirements of Clause C of the New Zealand Building Code (NZBC). They comply with the normative requirements for fire resistance performance as outlined in New Zealand’s acceptable solutions.

Fire Resistance Ratings (FRR)

The fire resistance ratings of KOROK® Scissor Stair Systems reach up to FRR -/120/120, depending on the span of the panels and the components selected.

• Horizontal Fire Resistance: Achieved by the quadrilateral fire-resistant section between the two independent stairs.
• Vertical Fire Resistance: Provided by the wall-to-stair stringer angle at the boundary connections.

For detailed configurations, refer to the technical specifications in the KOROK® Scissor Stair Systems wall type tables.

KOROK® Fire Doors – Premium Fire-Resistant Solutions for Safety and Compliance

KOROK® Building Systems NZ Ltd offers high-quality fire door solutions designed to enhance the fire safety of residential, commercial, and industrial buildings across New Zealand. Our fire doors are engineered to meet the latest fire rating and compliance standards while ensuring cost-efficiency, design flexibility, and ease of installation.

Why Choose KOROK® Fire Doors?

• Superior Fire Protection: Our fire doors provide optimal fire resistance, safeguarding people and property.
• Compliance Assurance: All our fire door systems are fully compliant with New Zealand Building Code (NZBC) standards.
• Sustainability: We prioritize eco-friendly materials and sustainable manufacturing processes.

Library

CASE STUDY

Auckland Film Studio and Sound Stage

KOROK is proud to have supplied the critical fire and acoustic wall systems for the Auckland Film Studio and Sound Stage project. Designed by Ignite Architects and built by Haydn & Rollett Construction, this facility sets a new standard in the New Zealand cinema industry.

KOROK’s Contribution

Our 78mm KOROK panels Gen 2 were chosen for their superior fire and sound-rated properties, achieving a Noise Criterion rating below NC-20. This was crucial in ensuring optimal recording conditions, despite the studios’ proximity to urban noise sources like Auckland’s western rail line.

Sustainable Design and Construction

The project has been awarded a 4 Green Star As-Built rating, recognizing its sustainable design and construction practices.

KOROK is honoured to contribute to a project that not only pushes the boundaries of film studio design but also promotes sustainability and economic growth in Auckland. We look forward to seeing the long-term benefits this project will bring to the local community and the entertainment industry.

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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.

Related Projects

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.

Related Projects

CASE STUDY

Bayfair Cinemas

The Bayfair Cinemas project is part of a $115 million development that marked the introduction of United Cinemas to New Zealand. United Cinemas, a prestigious Australian-owned chain, has been a leader in the industry since 1987. Known for its luxury cinema experience, United Cinemas operates 46 theatres across Australia, and Bayfair Cinemas in Mount Maunganui is its first venture in New Zealand. The complex includes seven state-of-the-art screens, featuring the region’s largest screen with Dolby Atmos Digital Sound, creating an unmatched cinematic experience.

KOROK® Acoustic Solutions for Cinemas

KOROK® systems were selected for this project to provide industry-leading acoustic performance. Our 78mm KOROK® panels were installed throughout the cinema complex, ensuring superior soundproofing between screens and public areas. This acoustic control is essential for a seamless and immersive movie experience, eliminating external noise and maintaining sound quality within each theatre.

KOROK® is recognized as the number one choice for soundproofing in New Zealand cinemas, thanks to our ability to deliver fire-resistant, durable, and cost-efficient wall systems that also meet the high acoustic demands of modern theatres.

Why Choose KOROK® for Cinemas?

• Superior Acoustic Control: Our panels are engineered to significantly reduce noise transmission between spaces.
• Fire-Resistant Performance: KOROK® systems comply with stringent fire safety regulations, ideal for public spaces like cinemas.
• Cost-Efficient Installation: KOROK® panels can be installed quickly, reducing both time and labor costs.

The Bayfair Cinemas project is a showcase of KOROK®’s commitment to delivering top-tier acoustic and fire-rated solutions for high-performance environments like cinemas. 

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KOROK® 78mm Galv Panel

High Performing and Lightweight

KOROK® 78mm galv 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® 51mm Galv Panel

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.