KOROK Intertenancy Apartment Walls Offer Proven Fire and Acoustic Performance

KOROK Intertenancy Apartment systems can make the new Kiwi dream a reality — living centrally in a high-spec apartment with all amenities nearby, and with the same privacy and peace afforded by the old ways.

Conventional framed wall systems rely on their linings to provide fire resistance and acoustic control performance. The KOROK team have developed a new series of KIR KOROK Intertenancy Apartment Walls that remove the need for linings in the ceiling plenum whilst maintaining fire resistance and acoustic control performance.

This means more straightforward design, detailing, and construction of Intertenancy Apartment Walls, resulting in faster programme times, reduced waste and an overall saving in cost.

KOROK Intertenancy Apartment walls offer next-level benefits — proven fire performance up to up to -/120/120 and acoustic ratings up to up to STC 68, and the security of a solid wall design.

For apartment owners and residents, KOROK Intertenancy Apartment Walls bring peace of mind. Residents can feel safe and secure, knowing they have a fire-rated steel and concrete system between units. It also means they can enjoy the peace and quiet, or wind down after a hectic day with music or a movie, knowing there'll be no disturbing or being disturbed by the neighbours.

Intertenancy Apartment Systems

KOROK

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Conventional framed wall systems rely on their linings to provide fire resistance and acoustic control performance.

NZ Made

Post-Consumer Recyclable Content

Installed vertically
Fire ratings up to -/120/120
Acoustic ratings up to STC 68

Along with Terraced Housing Intertenancy, KOROK systems are suitable for:

Dividing walls for sheds, factories and warehouses
Cinema walls
Intertenancy walls for apartments, hotels and retirement complexes
Lift shaft, stair and duct walls
Acoustic barriers
External and boundary walls for sheds, factories and warehouses

KOROK systems are suitable for all areas of New Zealand.

The NZBC sets out both the legal minimum sound transmission between tenancies (Clause G6) and minimum levels of fire resistance (Clauses C3 and C6). The KOROK Intertenancy Systems Manual provides guidance on the specification and construction of systems that will both meet and exceed those minimum levels. However, designers should consider the comfort of occupants when selecting a system that will satisfy the occupants' expectations when using the space rather than the minimum required by law.

NZBC:

Clause B1: Structure — The KOROK Systems meet the requirements for loads arising from self-weight, earthquake, wind, impact and creep and shrinkage
Clause B2: Durability — Under normal conditions of dry internal use KOROK Intertenancy Systems have a serviceable life in excess of 50 years and satisfy the requirements of NZBC Clause B2 Durability
Clauses C3: Fire Affecting Areas Beyond the Source — KOROK Intertenancy Systems can be used to provide passive fire protection in accordance with the requirements of NZBC Clause 3: Spread of Fire
Clause C6: Structural Stability —Compliance with (NZBC) Clause C6 'Structural Stability'. In order to satisfy the requirements of the New Zealand Building Code (clause 6) relating to Structural Stability designers must ensure that KOROK elements are supported by primary elements that have at least the same fire rating as the KOROK system that is used
Where the primary elements supporting the KOROK system are outside the fire cell, there is no requirement to apply the same FRR as the KOROK system. Notwithstanding, post fire stability requirements of the NZBC must also be satisfied
Clause G6: Airborne and Impact Sound — KOROK Intertenancy Systems, both meet and exceed the minimum requirements outlined in NZBC Clause G6. Consideration should be given to both the minimum requirements and the comfort of occupants

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