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.
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.
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.
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.
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 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.
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.
KOROK Systems used in this project
KOROK Cinemas
KOROK® is the number one choice for sound-proofing in New Zealand 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® 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.Â
KOROK Systems used in this project
KOROK Cinemas
KOROK® is the number one choice for sound-proofing in New Zealand cinemas.
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.
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.
KOROK Systems used in this project
KOROK Cinemas
KOROK® is the number one choice for sound-proofing in New Zealand cinemas.
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® is the leading provider of fire and acoustic rated protection for cinemas across New Zealand. Our systems are specifically designed to deliver superior soundproofing and fire resistance, making them the ideal choice for cinema construction and renovation projects.
Why Choose KOROK® for Cinemas?
Superior Soundproofing: Our fire-rated wall systems ensure minimal sound transmission between auditoriums, enhancing the cinema experience.
High Fire Resistance: KOROK® systems provide reliable fire protection, meeting New Zealand’s building code requirements for safety.
Proven Performance: With years of successful installations, KOROK® has become the trusted name in cinema construction.
The internal side lined with 1 layer 19mm GIB Fyreline® or acceptable GIB® alternatives or 2 layers 10mm GIB Fyreline® or acceptable GIB® alternatives.
Longrun profiled steel cladding system as selected.
The internal side lined with 1 layer 19mm GIB Fyreline® or acceptable GIB® alternatives or 2 layers 10mm GIB Fyreline® or acceptable GIB® alternatives. Longrun profiled steel cladding system as selected
1 layer 10mm GIB® Standard plasterboard or equivalent each side
Acoustic insulation must be either Autex GreenStuf SW90 or Pink Batts R 2.2 each side.
KOROK® metal fire flashing is installed to the top C-track.
KOROK® metal KIT flashing is installed to horizontal joints.
90mm steel or timber frame each side
86mm overall. Framing not to touch KOROK® panel or fire flashing
KOROK® metal fire flashing is installed to the top C-track. KOROK® metal KIT flashing is installed to horizontal joints.
1 layer 10mm GIB® Standard plasterboard or equivalent each side
Acoustic insulation must be either Autex GreenStuf SW90 or Pink Batts R 2.2 each side.
KOROK® metal fire flashing is installed to the top C-track.
KOROK® metal KIT flashing is installed to horizontal joints.
90mm steel or timber frame each side
80mm overall. Framing not to touch KOROK® panel or fire flashing
KOROK® metal fire flashing is installed to the top C-track. KOROK® metal KIT flashing is installed to horizontal joints.
KOROK® metal fire flashing is installed to the top C-track
OR
13 mm GIB Fyreline® or acceptable GIB® alternatives x 120 mm strip with
sealant is fixed at 250 mm centres top and bottom, using 6g x 32 mm
drywall screws.
The internal side lined with 1 layer 19mm GIB Fyreline® or acceptable GIB® alternatives or 2 layers 10mm GIB Fyreline® or acceptable GIB® alternatives.
Longrun profiled steel cladding system as selected.
The internal side lined with 1 layer 19mm GIB Fyreline® or acceptable GIB® alternatives or 2 layers 10mm GIB Fyreline® or acceptable GIB® alternatives. Longrun profiled steel cladding system as selected
1 layer 10mm GIB® Standard plasterboard or equivalent each side
Acoustic insulation must be either Autex GreenStuf SW90 or Pink Batts R 2.2 each side.
KOROK® metal fire flashing is installed to the top C-track.
KOROK® metal KIT flashing is installed to horizontal joints.
90mm steel or timber frame each side
86mm overall. Framing not to touch KOROK® panel or fire flashing
KOROK® metal fire flashing is installed to the top C-track. KOROK® metal KIT flashing is installed to horizontal joints.
1 layer 10mm GIB® Standard plasterboard or equivalent each side
Acoustic insulation must be either Autex GreenStuf SW90 or Pink Batts R 2.2 each side.
KOROK® metal fire flashing is installed to the top C-track.
KOROK® metal KIT flashing is installed to horizontal joints.
90mm steel or timber frame each side
80mm overall. Framing not to touch KOROK® panel or fire flashing
KOROK® metal fire flashing is installed to the top C-track. KOROK® metal KIT flashing is installed to horizontal joints.
KOROK® metal fire flashing is installed to the top C-track
OR
13 mm GIB Fyreline® or acceptable GIB® alternatives x 120 mm strip with
sealant is fixed at 250 mm centres top and bottom, using 6g x 32 mm
drywall screws.
