New Intertenancy System Exceeds Acoustic Requireme

Launched in late September 2018, the new Resene Construction Systems INTEGRA Intertenancy System has been extensively tested to meet the rigorous requirements of fire resistance and acoustic control for intertenancy walls.

The Resene Construction Systems INTEGRA Intertenancy System comprises a carefully designed wall build-up; an INTEGRA lightweight concrete panel forms the core, followed by timber framing, a cavity, insulation and a plasterboard lining. A key component of the system is a proprietary bracket attached from the core panel to the framing. The bracket is isolated by a dampener which has been designed to reduce sound transmission.

Acoustic testing of the system was undertaken by Acoustics Testing Services at the University of Auckland. Testing involved building the full intertenancy system build-up in between two enclosed chambers. Sound was created in one chamber and measured in the other chamber to determine the level of sound transmission from one room to the other.

Using the intertenancy system build-up with two layers of GIB Standard plasterboard achieved an impressive STC rating of 67 (total wall thickness of 310mm), while a slimmer wall build-up using just one layer of GIB Standard plasterboard achieved an STC rating of 64 (total wall thickness of 290mm). Each of these ratings far exceeds the minimum rating for intertenancy walls of STC 55 to ensure a comfortable acoustic environment in high-density developments.

In addition to excellent acoustic performance, the new intertenancy wall system from Resene Construction Systems achieved a 120 minute fire rating and meets the NZBC requirements for B1 Structure and B2 Durability. The system can be used for intertenancy walls up to 12m in height.

The Resene Construction Systems Intertenancy System is an exciting addition to the NZ market, offering designers a new high-performance option for intertenancy walls suitable for apartments, townhouses, hotels and office complexes.

INTEGRA Central Barrier Intertenancy System

Resene Construction Systems

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Resene Construction Systems INTEGRA Intertenancy Systems provide an intertenancy wall solution for medium density residential builds.

NZ-Owned Business

Resene Construction Systems INTEGRA Intertenancy Systems is for load bearing walls where a FRR is required on a wall.

Suitable for:

Intertenancy walls up to 12m in height
Maximum individual floor/ceiling height meets NZS 3604
For residential construction
Where a Fire Resistance Rating up to 120/120/120 is required
Where a minimum STC of at least 55 is required
Maximum loading of 4.5kN/Stud is required
As a solution to meet AS1530.4-2005

Resene Construction Systems INTEGRA Intertenancy Systems has been carefully designed to New Zealand conditions and independently tested and assessed to ensure it meets the performance criteria as outlined in NZBC:

B1 — Structure: The design and specification for timber framing must be in accordance with the performance requirements of NZBC B1. Framing used in accordance with NZS3604:2011 is compliant in accordance with NZBC B1 and is the best choice to use when using a Resene Construction Systems Intertenancy System. Where the framing falls outside the requirements of NZS3604:2011 it is recommend that an engineer is engaged to ensure that structural compliance is met.
B2 — Durability: Under normal conditions of internal use, the Resene Construction Systems Intertenancy System will achieve a service life in excess of 50 years and satisfy the requirements of NZBC B2.
C1-C6 — Protection from Fire: The Resene Construction Systems Intertenancy System can be used to provide passive fire protection in accordance with the requirement of NZBC C1-C6 – Protection from Fire. The Resene Construction Systems Intertenancy System has been peer reviewed and meets the provisions of NZBC C1-C6 when kept within the scope as outlined in Section 5 Scope of use for the Resene Construction Systems Intertenancy System.
F2 — Hazardous Building Materials: Under normal conditions of internal use, the Resene Construction Systems Intertenancy System does not constitute a health hazard and meets the provisions of the NZBC Clause F2.
G6 — Airborne and Impact Sound: The Resene Construction Systems Intertenancy System provides airborne noise control ratings that exceed the minimum requirements of NZBC Clause G6 — Airborne and Impact Sound. The Resene Construction Systems Intertenancy System has been peer reviewed and meets the provisions of NZBC G6 when kept within the scope 5 Scope of use for the Resene Construction Systems Intertenancy System.

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