Seismic Resource

Seismic Resource

KOROK® Seismic Resource

Seismic Solutions

Setting the Benchmark for Seismic Resilience in New Zealand

KOROK® has set a new benchmark in seismic performance, exceeding design loads and demonstrating exceptional durability under rigorous in-plane and out-of-plane seismic testing. Our systems maintain structural integrity even under extreme seismic stress, ensuring minimal damage, reduced repair costs, and faster recovery after earthquakes. 

Leading the Market in Seismic Testing

KOROK® has recently undergone comprehensive seismic testing, setting a new benchmark to support our fire and acoustic wall performance. For over 25 years, we have delivered high-performance solutions across the residential, industrial, and commercial markets.

The Purpose Behind Our Testing

To understand and determine the behavior and performance of KOROK wall panels when subjected to seismic design loads occurring between structural slabs within buildings.

To demonstrate how KOROK® panels respond in correlation with drift levels for both in-plane and out-of-plane conditions, and to support the market with tested solutions. By undertaking this seismic testing, KOROK® reinforces its commitment to superior building resilience, helping to minimize damage, lower repair costs, and maintain operational continuity after earthquakes.

Importance of Seismic Resilience

The 2010/2011 Christchurch earthquakes and the more recent 2013 Lower North Island earthquakes illustrated the vulnerability of building non-structural elements (partitions, building services and piping). Widespread damage and loss of business continuity due to the poor performance of non-structural elements was widely observed

The Canterbury Earthquakes Royal Commission identified the need to improve the performance of non-structural elements in earthquakes with one of the recommendations focussed on improving non-structural element performance. “To prevent or limit the amount of secondary damage, engineers and architects should collaborate to minimise the potential distortion applied to non-structural elements. Particular attention must be paid to prevent the failure of non-structural elements blocking egress routes.”

Proven Seismic Performance

Conducted at BRANZ in 2024, our seismic tests followed FEMA 461 and NZS 1170.5:2004 standards, confirming KOROK® panels has the ability to withstand extreme drift. No other system in New Zealand has undergone such rigorous testing with multiple wall configurations and variations.

Application in High-Importance Structures

As the ultimate All-in-One solution for fire & acoustic-rated wall systems, KOROK® panels offer unmatched performance for high-importance structures. With strong seismic performance and the ability to withstand high drift limits, KOROK® panels are ideal for IL3 and IL4 buildings, such as hospitals, emergency response centres, and essential utilities. KOROK® provides stakeholders, architects, and engineers with confidence in a durable, high-performance solutions.

Download KOROK Seismic Test Report

Download the KOROK® Seismic Test Report here to view a selection of test results for our most common wall configurations. This PDF provides a glimpse into our rigorous seismic testing process. If you require the full test report with comprehensive data, please contact us – we’re happy to provide it upon request.

Read more

Memberships and Certifications

Our Partners, Memberships, and Certifications

masterspec logo2

Masterspec

KOROK is listed on Masterspec, New Zealand’s leading specification system for architects and designers. This ensures seamless integration of KOROK systems into project specifications, making it easier for professionals to select and specify our products. Visit KOROK on Masterspec

BRANZ logo

BRANZ (Building Research Association of New Zealand)

KOROK systems are BRANZ appraised, ensuring they meet New Zealand’s stringent building standards. BRANZ is known for independent testing and research that supports the building industry.
Learn more about KOROK on BRANZ

New Zealand Green Building Council (NZGBC)

As part of our sustainability journey, we are committed to supporting green building initiatives. Our products contribute to sustainable building projects and help developers meet Green Star certification requirements.
Learn more about NZGBC

NZIA (New Zealand Institute of Architects)

KOROK partners with the NZIA, the professional body for architects in New Zealand. This affiliation ensures we remain connected to architectural best practices and contribute to the ongoing development of innovative building solutions.
Learn more about NZIA

Environmental Product Declarations (EPDs)

We have achieved Environmental Product Declarations for our key products:

  • Galv Panel EPD (July 2024)
  • Colour Panel EPD (August 2024)

These EPDs provide verified, transparent information about the environmental impact of our products across their life cycle.

See KOROK EDPs

EBOSS

KOROK is featured on EBOSS, New Zealand’s leading platform for architects, designers, and builders to access reliable technical information and product specifications. Our presence on EBOSS ensures easy access to up-to-date KOROK system details for industry professionals.
Visit KOROK on EBOSS

Read more
Deflection Head Details

Deflection Head Details

Deflection Head Details

What Are Deflection Head Details?

Deflection head details are specialized components used in wall and partition systems to accommodate vertical or horizontal movement in a building’s structure.

They are typically placed at the top of walls, allowing the structure to expand, contract, or shift without compromising the wall’s integrity or performance.\

This movement can be caused by various factors, such as dead loads, live loads, thermal expansion, or seismic activity. At KOROK Building Systems, our deflection head solutions are designed to provide the flexibility and stability needed in high-performance wall systems.

Dead and live loads can cause significant deflection in some structures. KOROK® can provide deflection C-track details where deflection loadings are considered.

 

KOROK deflection head details:

  • Maintain Structural Integrity: Designed to allow movement in walls without damaging the structure, these details help prevent cracking or separation in response to building movement.
  • Ensure Fire and Acoustic Performance: KOROK deflection heads are rigorously tested to retain fire resistance and acoustic ratings, even with movement, maintaining protection in all conditions.
  • Seismic Readiness: In New Zealand, where seismic activity can impact building structures, our deflection head designs are engineered to absorb and adjust to seismic forces, supporting safe and resilient structures.
Deflection Head Details

Whether used in commercial or residential projects, KOROK’s deflection head details meet the highest industry standards, offering a reliable solution for builders, architects, and contractors who prioritize safety, performance, and durability.

Download Literature

Read more

Technical Resources

Technical Resources

.vc_custom_1419253765784{background-color: rgba(0,0,0,0.3) !important;*background-color: rgb(0,0,0) !important;}
Read more
KOROK Apartment Wall Solutions

KOROK Apartment Wall Solutions

KOROK Apartment Wall Solutions

The Ultimate All-in-One Solution for Fire & Acoustic Rated Intertenancy Wall Systems

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

KOROK Apartment Wall Solutions

Wall Transition

  • Tested Fire Door Solutions
  • Simple transitioning for interface junctions

Corridor, Service Riser & Ducts

  • Multiple wall design solutions
  • Single-sided fix
  • Non-weather dependent
  • 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

Read More

Lift Shafts, Risers, Ducts Fire and Acoustic Rated Protection

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

KOROK Scissor Stairs

Recent Articles

Stay in the loop

Sign-up to our newsletter to be notified of updates.

Read more
Technical Bulletin July 2024

Technical Bulletin July 2024

Technical Bulletin July 2024

KOROK has a culture of investing in product testing across our core market segments, believing in developing systems that simplify construction with robust, evidence-based performance.

As our market evolves, so does the demand for high-performance, compliant systems. KOROK continually strives to stay ahead, providing evidence-based solutions, supporting documentation, technical support, and literature to the New Zealand Construction Industry.

Our technical team, led by David Cornelius, brings a wealth of experience and a deep passion for the KOROK brand. We balance product innovation, testing, and technical support, ensuring that the industry benefits from practical, test-based solutions.

Pathway to testing:

KOROK collaborates with leading institutions such as BRANZ,  Auckland University Acoustics Testing Services, CSIRO, and Warringtonfire Australia, alongside industry-leading fire and structural engineers, manufacturers, and consultants. This collaboration aims to deliver performance-based solutions that meet ever-evolving design requirements.

The testing process begins by identifying industry challenges, followed by setting objectives and the steps required to facilitate a solution. KOROK evaluates both suitability and compliance requirements while considering simple installation methodologies. A systematic evaluation of needs leads to a well-structured test program and assessments.

David and his team rigorously assess and refine processes, aiming to provide the market with simple, high-performance systems and applications that enhance both functionality and efficiency. Our goal is to ensure that every product meets the highest standards of performance and reliability.

Technical Bulletin July 2024

Recent Articles

Stay in the loop

Sign-up to our newsletter to be notified of updates.

Read more
Fire Rated Protection of Junctions Between KOROK Walls and Structural Steel

Fire Rated Protection of Junctions Between KOROK Walls and Structural Steel

Fire rated protection of junctions between KOROK® walls and structural steel

Ensuring fire-rated protection for junctions between KOROK® wall systems and structural steel columns and beams is critical for maintaining the integrity of fire protection systems in commercial and residential buildings.

This guide provides a quick reference for builders, engineers, architects, and designers to assess, design, and install fire-rated junctions without compromising the fire protection applied to steel structures. Whether you’re working with steel columns, beams, or other structural elements, KOROK® wall systems offer reliable fire resistance and acoustic performance.

Since fire protection linings and coatings are designed to meet the specific requirements of each column, beam, and loading condition, we recommend consulting your structural engineer or fire engineer for precise junction details.

For more information on fire-rated junction systems and KOROK® fire-rated wall systems, please refer to your project’s design team or review KOROK technical literature.

Fire Rated Protection of Junctions Between KOROK Walls and Structural Steel

Download Literature

Read more
Hoyts Cinema Complex

Hoyts Cinema Complex

CASE STUDY

Hoyts Cinema Complex, – KOROK® Wall Systems in Action

The Ormiston Hoyts Cinema Complex is part of a large shopping mall development in South Auckland’s Flat Bush. With eight theatres, the project required effective soundproofing to enhance the cinema experience.

KOROK® Panels for Acoustic Performance

The theatre walls feature a double layer of 78mm KOROK® panels with a gap filled with acoustic batts, designed to prevent sound from travelling between theatres. This setup ensures clear and uninterrupted sound for moviegoers.

Why KOROK® for Cinemas?

KOROK® wall systems are known for their acoustic properties, making them a common choice for cinemas in New Zealand. These panels help manage sound, offer fire protection, and are straightforward to install, meeting both safety and performance needs. For more information about how KOROK® can support your next project, contact us today.

Hoyts Cinema Complex
2019 Cinemas Ormiston (156)

KOROK Systems used in this project

Cinemas

KOROK Cinemas

KOROK® is the number one choice for sound-proofing in New Zealand cinemas.

Related Projects

Read more
KOROK® 78mm Colour Panel

KOROK® 78mm Colour Panel

KOROK® 78mm Colour Panel

High-Performing and Lightweight Panels for Superior Building Solutions

The 78mm KOROK® panels are engineered to provide exceptional performance in both fire and acoustic applications. These panels are roll-formed from high-quality COLORSTEEL® steel strips, with the steel conforming to the rigorous AS/NZS1397:2001 standard.

The combination of steel shells and an aerated concrete core ensures outstanding durability and functionality. Weighing approximately 10.2kg per lineal metre, these panels offer a lightweight solution that does not compromise on strength or safety.

Key Benefits of KOROK® Panels

  • Fire Resistance: High fire ratings, ensuring safety and compliance with building standards.
  • Acoustic Insulation: Minimizes sound transmission, creating quieter spaces.
  • Lightweight Construction: Simplifies installation and reduces structural load requirements.
  • Durability: Engineered to withstand demanding conditions.
  • Efficiency: Panels are pre-finished and easy to install, reducing construction time and costs.
KOROK® 78mm Colour Panel

Applications of 78mm KOROK® Colour Panels

Our 78mm KOROK® colour panels are versatile and suitable for various building applications, including:

Transition to COLORSTEEL® MAXAM™

In our commitment to innovation and sustainability, we are transitioning to the advanced COLORSTEEL® MAXAM™, replacing the previous COLORSTEEL® ENDURA® and COLORSTEEL® MAXX® ranges. This transition represents a significant technological advancement, enhancing the performance and longevity of our wall systems. COLORSTEEL® MAXAM™ is designed to offer superior resistance to New Zealand’s diverse environmental conditions, making it an ideal choice for a wide range of applications.

COLORSTEEL Colours Available

StonePeak™ Matte
TSR: 53%
LRV: 48%

TidalDrift® Matte
TSR: 29%
LRV: 13%

FlaxPod® Matte
TSR: 20%
LRV: 6%

TuiTuft®
TSR: 66%
LRV: 68%

Cloud
TSR: 69%
LRV: 74%

Titania
TSR: 66%
LRV: 68%

Sandscape®
TSR: 66%
LRV: 66%

Gull Grey
TSR: 57%
LRV: 51%

Sandstone Grey
TSR: 41%
LRV: 27%

SandBar™
TSR: 48%
LRV: 34%

Lichen
TSR: 42%
LRV: 28%

Mist Green
TSR: 39%
LRV: 25%

Permanent Green
TSR: 25%
LRV: 10%

Pioneer Red
TSR: 35%
LRV: 12%

Scoria
TSR: 30%
LRV: 10%

Ironsand
TSR: 25%
LRV: 8%

Karaka
TSR: 24%
LRV: 8%

New Denim Blue
TSR: 24%
LRV: 11%

Grey Friars
TSR: 26%
LRV: 10%

Thunder Grey
TSR: 29%
LRV: 12%

Windsor Grey (LG)
TSR: 20%
LRV: 7%

Slate
TSR: 25%
LRV: 9%

FlaxPod®
TSR: 21%
LRV: 7%

Ebony
TSR: 5%
LRV: 5%

Read more
KOROK 360

KOROK 360

KOROK 360

Complete Support, Every Step of the Way

KOROK 360

KOROK 360 – Where Innovation Meets Support

At KOROK, we understand the complexities involved in construction and manufacturing projects. That’s why we’ve introduced KOROK 360, a testament to our commitment to providing a holistic support package. The ‘360’ in our branding is more than a number; it symbolizes the full-circle support we offer, ensuring that no aspect of your project is overlooked.

Our Objective

Our goal with KOROK 360 is to redefine “support” within the construction and manufacturing industry for both new and existing clients. Offering an extensive range of services tailored to optimize and enhance every phase of your projects, from the initial concept to the final touches.

What Sets KOROK 360 Apart

KOROK 360 distinguishes itself as the first and only, New Zealand-made support package in the fire and acoustic wall systems sector. We pride ourselves on providing unparalleled support and expertise throughout the entirety of your project’s lifecycle. With KOROK 360, clients gain access to expert guidance and support at every step, ensuring a seamless, efficient, and successful project outcome.

All the Support You Need, When You Need It

sales-support

Sales & Specification Support:

Our sales support team is at your disposal, ready to help you in the office, on-site, run training sessions, presentations and more. Contact Sales & Spec Support

Picture5

Expert Tech Support:

Benefit from our technical experts for guidance, compliance and troubleshooting, ensuring your project keeps moving without difficulty. Contact Tech Support

Picture2

Estimation & Pricing Support:

Leverage our detailed quantity surveying expertise to ensure your project’s resources are optimized, preventing waste and ensuring cost-effectiveness throughout the lifecycle of your project. Contact Support

Picture1

Made to Measure:

Just like a tailor-made suit, we’ll make sure our products fit your project perfectly. We will assist you in placing your orders and ETA enquiries. Contact Orders Support

Picture4

National Logistics Service:

No matter where you are in New Zealand, we’ll get our products to you right on time, so your project stays on track. Contact Logistic Support

Picture3

Installation & Training Support:

Our on-ground support during the installation. Ensures compliance with standards and maximises the performance of our firewall and acoustic wall systems. Contact Installation Support

Sustainability

Sustainability:

Commitment to sustainability and transparency, and supporting green building practices. Contact Support

Read more