Smart Wall Solutions for High-Performance Healthcare Environments

KOROK: There’s No Substitute for Tested Performance

Fire & Acoustic Wall Systems Trusted in Healthcare. KOROK® is a proven fire and acoustic wall system that delivers key performance benefits for healthcare construction. Hospitals demand the highest standards in safety, acoustic control, compliance and speed of delivery. KOROK delivers – with BRANZ-appraised, tested systems that are already trusted in hospitals, corridors, IT rooms, service risers, lift shafts, and more

Engineered for IL3/IL4 Resilience: Seismic Performance and Rapid Remediation Design

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. 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.

Core Benefits That Deliver Certainty in Fire, Acoustic, Seismic, and Programme Performance

All-in-one Solution for all Fire and Acoustic Rated Walls, Engineered for Complex Healthcare Builds

One system, multiple applications. From intertenancy walls to lift shafts, risers, ducts and corridors. KOROK panels provide comprehensive protection throughout your entire project.

LIFT SHAFTS

SERVICE RISERS & DUCTS

CORRIDORS & HALLWAYS

INTERTENANCY WALLS

STAIRCASE & ESCAPE PATHS

PLANT ROOMS & IT ROOMS

Save Time. Save Labour. Reduce Risk.

Need more info or want to present this to a client? We can help

At KOROK, we know that healthcare projects are high-stakes environments, with no room for delays, compliance issues, or uncertainty. That’s why we offer KOROK 360, a full-circle support package developed to give you confidence from concept to completion. Whether you’re in early-stage design or managing construction on site, KOROK 360 provides targeted, hands-on support tailored to your needs

Ready to Spec KOROK?

Let’s lock it in, and get your project moving with tested, proven performance. Whether you’re working on early-stage design, refining your specification, or needing trusted fire and acoustic systems that meet healthcare demands – we’re here to help. Get expert guidance, fast documentation, and the confidence that comes from working with systems already trusted in hospitals across New Zealand.

Talk to us today and bring KOROK certainty to your next healthcare build.

Paul Carrigan
Specification Manager
📧 paul@korok.com | 📞 0800 KOROK NZ

Andrew Hawkins
Specification Manager
📧 andrew@korok.com | 📞 0800 KOROK NZ

Our Partners, Memberships, and Certifications

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 (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

Panel Handling

KOROK manufactures lightweight wall panels consisting of galvanised or colour steel shells filled with aerated concrete.

Generally, KOROK products are delivered to your building or other site on long trailers and articulated trucks.

Our products are packed with reasonable protection against damage during delivery, however care must be exercised during unloading.

Forklift, Hiab or crane unload is required.

GUIDELINES

Ensure packs are lifted slowly, avoiding jerking where possible.

Forklift unloading – 150mm between pack and mast.

Ensure soft slings are neatly running on the inside of the two most inner timber collars of the pack.

Ensure soft slings are running continuously from the hooks to underneath the pack and back up to the hook.

Do not loop the sling around itself with only one end connected to the hook. This may damage the panels when lifted.

Ensure you lift only one or two packs at a time.

PACK SIZES

The panels are packed in timber pallets, measuring 1200mm wide by 300mm high.

There will be 2, 4 or 6 timber pallets for each pack (depending on length), nominally spaced 1200mm apart, middled from pack centre.

Packs can be stacked up to 6 packs high and must be placed side by side or end on end, on the truck / trailer tray.

When stacking back-to-back, timber collars must butt up against each other.

The length of the pack will vary according to the length of the panel required by the customer, commonly between 2.0 and 7.0 metres in length (can be up to 9.0m).

COMMON PACK WEIGHTS

Standard 3 metre pack = 390 – 470kg (nominal); Standard 6 metre pack = 780 – 936kg (nominal).

STRAPPING DOWN PACKS

Loads must be strapped down and secured by appropriate means. Load strops are most highly recommended, allowing 12 to 16 strops for a full semi load, more for B-Train transport.

Packs are to always be strapped over timber collars. No belly straps done with plastic angles at any time.

When stacking higher than 4 packs, a second set of straps must be placed after the third pack over timber collars only, before adding further packs.

ACCESSORIES

At times, a bundle of steel C-track or Angle strips may be placed on top of the load. These may measure up to 6.0 metres in length and weigh from 10kg to 500kg depending on the quantity.

IN TRANSIT

Where possible, avoid sudden braking and jolts during transit to reduce impacts on the product.

Re-tension strops every two hours at a minimum.

UNLOADING

Forklift, Hiab or crane unload is required.

Use soft slings or forks only, no chains to be used on product.

All lifting to only be done under middle crate, closest to the bearers to take the weight.

Forklift unloading – 150mm between pack and mast.

Care must be taken on unload and storage of product, avoiding bumps and scratching.

Guidelines must be carefully followed (turn over page).

Technical Resources

High-Performance Fire Sealants for KOROK® Wall Systems

The KOROK® Acrylic Fire Seal and KOROK® MS Fire Seal are high-performance fire-resistant sealants engineered to enhance building safety in KOROK wall systems. Both products offer up to four hours of certified fire resistance, making them ideal for fire-rated joint applications in settings like intertenancy walls, lift cores, riser ducts, and stairwells.

KOROK® MS Fire Sealant

Introducing the KOROK MS Fire Seal, a single-component, hybrid sealant engineered to deliver high-performance fire resistance in building projects. Ideal for integration with KOROK wall systems, this innovative product provides a lasting, elastic seal that effectively withstands fire, UV, and environmental stresses without compromising on quality or safety.

Key Features and Benefits

KOROK MS Fire Seal stands out for its durability and advanced formulation. Here’s why it’s the go-to choice for reliable, fire-resistant joint sealing:

• High Elasticity and Movement Capability: With a movement tolerance of ±25%, KOROK MS Fire Seal offers high flexibility, making it adaptable to various structural shifts and expansions without cracking.
• Safe and Environmentally Friendly: Free from isocyanates, solvents, and silicones, it’s engineered for safety and designed to prevent the release of halogenated by-products during fire exposure.
• Fast Curing with Minimal Shrinkage: KOROK MS Fire Seal cures quickly with nearly no shrinkage, ensuring consistent, secure joints that won’t deteriorate over time.
• Non-Corrosive with Excellent Adhesion: Whether applied to metal, wood, concrete, or other materials, the sealant forms a strong, lasting bond that won’t corrode or weaken with age.
• Outstanding UV and Weather Resistance: Its robust formula stands up to UV light, moisture, and fluctuating temperatures, keeping joints resilient and intact, even in harsh conditions.
• Easy to Apply in Various Temperatures: With a user-friendly application in both warm and cool conditions, KOROK MS Fire Seal simplifies installation without compromising quality.
• 4-Hour Fire Rating: Tested and certified according to EN1366-4 and EN1366-3, KOROK MS Fire Seal offers up to 4 hours of fire resistance, ensuring critical protection in fire-rated assemblies.

KOROK® Acrylic Fire Seal

The KOROK® Acrylic Fire Seal is a high-quality, water-based acrylic sealant designed to enhance fire safety and acoustic efficiency across a variety of building projects. Engineered for fire-rated joint applications, this sealant delivers excellent performance while providing easy, water-based cleanup, making it an ideal choice for both new builds and retrofit applications.

Features & Benefits

1. Fire Resistance: The KOROK® Acrylic Fire Seal offers fire resistance for up to four hours, helping to protect buildings from fire spread. This performance is certified according to the AS1530.4:2014 standard, a critical safety benchmark for the construction industry.
2. Acoustic Performance: In addition to fire safety, the KOROK® Acrylic Fire Seal contains acoustic properties that effectively reduce sound transmission. This dual-purpose functionality is especially beneficial in high-density living spaces, such as apartment complexes, where both fire and noise control are priorities.
3. Ease of Application and Cleanup: As a water-based acrylic product, the KOROK® Acrylic Fire Seal is simple to apply and clean, providing a practical solution for contractors working with KOROK® systems.

Tested & Certified

The KOROK® Acrylic Fire Seal has been rigorously tested to ensure compliance with AS1530.4:2014, meeting industry standards for fire performance and safety. Additionally, this product is low in volatile organic compounds (VOC), making it a safer and more environmentally friendly option.

Applications

The KOROK® Acrylic Fire Seal is approved for use with KOROK® wall and partition systems, complementing their fire and acoustic protection. It is ideal for joint applications where fire and sound insulation are essential, such as:

• Intertenancy walls
• Lift cores
• Riser ducts
• Stairwell enclosures

EARN CPD POINTS WITH KOROK

NZIA Approved CPD Provider

Expand your expertise and earn CPD points with our informative presentations tailored for architects. Discover the latest innovations and products from KOROK, one of New Zealand’s leading brands in fire and acoustic rated wall systems.

Our sessions, accredited by Te Kāhui Whaihanga New Zealand Institute of Architects, offer 10 CPD points for every hour attended.

We understand the demands of your schedule, so we’re bringing the knowledge directly to your office. Contact us today to arrange a free CPD presentation at your convenience, and take the next step in your professional development. We look forward to supporting your journey.

KOROK’s Sustainability Journey

At KOROK, sustainability is a core value. Our journey towards carbon neutrality is marked by significant milestones that reflect our commitment to reducing our environmental impact and enhancing the eco-friendliness of our products.

2001 Launch into New Zealand Market.

Between 2001 and 2017:

KOROK, initially launched in New Zealand as SPEEDWALL, focused on improving construction with streamlined systems that reduced waste, minimised lining needs, and boosted efficiency. Our commitment to sustainability has been integral since the start.

• Manufacturing Efficiency: Upgraded technologies to reduce energy use and optimise resources.
• Wastewater Management: A modern treatment plant for recycling and reducing water impact.
• By-product Reduction: Enhanced recycling processes to minimise waste.

2017: DECLARE Label

In 2017, we obtained the DECLARE Label, listing the ingredients in our products and aligning with the LEED green building rating system. This helped us meet industry standards and be included in GreenStar and HomeStar ratings.

April 2021: Joining NZ Green Building Council

In April 2021, we joined the New Zealand Green Building Council (NZGBC), supporting eco-friendly building practices.

December 2021: Environmental Choice New Zealand Licence

By December 2021, we obtained the Environmental Choice New Zealand Licence, recognising our products as better for the environment, enhancing our credibility among architects and builders and helping us gain accreditation for GreenStar and HomeStar products.

March 2023: Carbon Footprint Analysis

In March 2023, we conducted a carbon footprint analysis of our panels, meeting market demands and preparing for new NZ Building Code regulations.

April 2023: VOC Emissions Analysis

We analysed VOC emissions from our sealants in April 2023, addressing health concerns and meeting the demands of architects.

July 2024: Environmental Product Declaration (EPD)

In July 2024, we completed our Galv Panel Environmental Product Declaration (EPD), followed by our Colour Panel EPD in August, providing a verified summary of our product’s environmental impact over their life cycle. These EPDs are recognised internationally and often specified in tender documents and contracts.

Ongoing Carbon Reduction Efforts

Our commitment to sustainability includes ongoing initiatives to reduce our carbon footprint:

• Upgrading lighting to LEDs.
• Converting forklifts from LPG to battery power
• Recycling steel scrap.
• Recycling office and kitchen waste.
• Repurposing leftover concrete for clean fill.
• Exploring options to reuse leftover concrete and alternative fibres.
• Continuously reviewing and reducing printing.
• Factory looking at swapping from cheap throwaway pneumatic punches to something more robust (May 24)
• Even though an EPD is valid for 5 years, we will constantly review ours. We are looking forward to the changes that NZ Steel have planned for next year, moving from BOF furnaces (primary) to EAF furnaces (secondary). This will have a very positive impact on our Carbon footprint.

KOROK’s sustainability efforts highlight our commitment to reducing our environmental footprint. From the DECLARE Label to our EPDs, we continuously strive for improvement, aiming for a greener, more sustainable future.

Environmental Product Declarations (EPDs)

We are proud to announce the completion of our Environmental Product Declarations (EPDs), a testament to our commitment to transparency and sustainability. One for our Galv panel and one for our Colour panel.

What is an EPD?

An Environmental Product Declaration (EPD) is a certified, independently verified summary of a product’s environmental impact over its entire life cycle. It evaluates:

• The materials extracted from the earth.
• Energy used in the production, transportation and installation.
• The environmental impacts of using, disposing, or recycling the product.

The EPD covers a range of environmental indicators, including the potential for carbon emissions, air and water pollution, and depletion of natural resources. Based on international standards (ISO 14025 and EN 15804 for building materials), our EPD is independently verified, making it a trusted and reputable source of information. It is recognized by industries, companies, and governments, and is often specified in tender documents and contracts.

Download KOROK’s EPD >>

Download KOROK’s EPD >>

Recent Articles

Introducing COLORSTEEL® MAXAM™: The Next Generation of Steel Solutions

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

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

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

Read More

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

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.

Recent Articles