Wellington Airport welcomed a new state-of-the-art air traffic control tower in August 2018, designed to handle the airport’s demanding operations with over 97,000 flights annually. Standing 32 metres tall, the tower provides panoramic views across the airfield, ensuring air traffic controllers have optimal visibility to manage air traffic safely and efficiently.
This iconic structure is one of New Zealand’s safest buildings, meeting 100% of the building code for its importance level. The tower’s base includes 13 advanced base isolators to deliver superior earthquake resilience, a critical feature in Wellington’s seismic environment.
KOROK® was proud to contribute to this project, supplying 78mm fire-rated acoustic panels for the lift shafts, risers, and ducts. Our systems are specifically designed to streamline construction and improve safety on site. By allowing installation from just one side, scaffolding inside the shaft is not required, reducing both construction time and costs.
Our panels offer superior fire resistance, acoustic performance, and seismic resilience, making them the ideal solution for high-importance structures like the Wellington Airport control tower.
Why KOROK®?
Efficient Installation: No need for internal scaffolding, speeding up project timelines.
Superior Fire Protection: KOROK® systems ensure compliance with fire safety regulations.
Acoustic Performance: Helps to minimize noise pollution in critical areas like lift shafts and risers.
Seismic Resilience: Engineered for enhanced stability in earthquake-prone zones.
The Wellington Airport control tower is a landmark project, showcasing KOROK®’s capabilities in delivering advanced, resilient building systems for critical infrastructure.
KOROK Fire and Acoustic Wall Systems at Tūranga Library, Christchurch
KOROK proudly contributed to the Tūranga Library project in Christchurch, New Zealand, which opened its doors in October 2018. As a replacement for the Christchurch Central Library, which was damaged during the 2011 Christchurch earthquake, Tūranga stands as a modern architectural masterpiece. Designed by New Zealand firm Architectus in collaboration with the award-winning Danish firm Schmidt Hammer Lassen, the library’s striking design reflects the golden hues of Christchurch’s Port Hills. KOROK’s fire wall and acoustic wall systems were installed in the building’s lift shafts, risers, and ducts, providing superior fire protection and sound insulation to support the library’s functional and safety needs.
Fire and Acoustic Rated Wall Systems for Shafts, Risers, and Ducts
KOROK® fire and acoustic rated wall systems offer superior solutions for lift shafts, risers, and ducts. Lift shafts require fire and acoustic rated protection to ensure building safety. With our innovative panel design, you can install from one side only, eliminating the need for internal scaffolding and significantly reducing construction time and costs.
Key Advantages:
Single-side installation: No scaffolding required inside the shaft, speeding up the construction process.
Fire and acoustic performance: Our systems provide high-level fire resistance and acoustic insulation, ensuring safety and comfort. For lift shafts, this fire and acoustic rated protection is critical.
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 equivalent x 120 mm strip with sealant is fixed at 250 mm centres top and bottom, using 6g x 32 mm drywall screws.
Engineered Fire and Acoustic Systems for Industrial and Commercial Spaces
KOROK® Warehouse and Retail Systems are high-performance, non-loadbearing internal wall systems designed to provide secure fire separation and acoustic control in industrial, warehouse, bulk retail, and intertenancy environments.
The system consists of interlocking steel-faced panels with an aerated concrete core, engineered for certified fire resistance, acoustic attenuation, structural reliability, and long-term durability. Panels can be installed vertically or horizontally and are suitable for both single-wall and twin-wall configurations. The systems have been developed in accordance with recognised Australian and New Zealand Standards and are substantiated through BRANZ testing and appraisal(Appraisal No. 559), ensuring verified and compliant performance.
How the System Works
KOROK® panels are roll-formed from zinc-coated steel strips and encapsulate a lightweight aerated concrete core. The interlocking tongue-and-groove profile forms a continuous sealed barrier that enhances both fire integrity and acoustic isolation.
System performance is achieved through the combined effect of panel mass and composite action, the engineered interlocking joint design, and a tested fastening and support methodology. Optional linings and cavity configurations can also be incorporated to meet specific Fire Resistance Rating (FRR) and Sound Transmission Class (STC) requirements.
Systems are non-loadbearing and must be supported by primary structural elements designed in accordance with NZBC structural requirements. Only genuine, tested KOROK® panels and proprietary components guarantee certified system performance. Substituting alternative products may compromise fire and acoustic ratings and cannot be supported or certified.
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 equivalent x 120 mm strip with sealant is fixed at 250 mm centres top and bottom, using 6g x 32 mm drywall screws.
