Intertenancy Wall System 75
75mm AAC intertenancy wall for high-performance separation.
Acoustic + Fire for party walls
75 mm AAC Light intertenancy system - FRL 90/90/90 and Rw+Ctr up to 52 dB, CodeMark certified.
Acoustic separation
Rw 63 / Rw+Ctr 52 dB on WIW 7502 discontinuous 90 mm stud. Exceeds NCC Rw+Ctr≥50.
Fire-rated core
CSIRO FCO-3092B assessed FRL 90/90/90 across all four WIW 75 system variants.
75mm Intertenancy Wall System
Apartment party walls
System components
| Specification (Standard Stocking Size) | Est. Weight |
|---|---|
| Walsc AAC Panel 2400x600x75mm XL, 10/Pack | 60kg |
| Walsc AAC Panel 2550x600x75mm XL, 10/Pack | 63.5kg |
| Walsc AAC Panel 2700x600x75mm XL, 10/Pack | 67.5kg |
| Walsc AAC Panel 2850x600x75mm XL, 10/Pack | 71kg |
| Walsc AAC Panel 3000x600x75mm XL, 10/Pack | 75kg |
| Walsc AAC Panel 3300x600x75mm XL, 10/Pack | 82.5kg |
Trusted in projects across Australia
Chatswood Commercial Tower
Chatswood, NSW - 2024
A 20-storey commercial tower using 75mm Commercial AAC Panels as the primary facade system, meeting stringent wind load and fire safety requirements for Class 5 buildings.
- FRL 240/240/240 facade fire rating
- High-density 600 kg/m³ panels
- Wind load rated for 20+ storeys
- NCC Volume 1 Class 5 compliant
Rhodes Apartment Complex
Rhodes, NSW - 2023
A 15-storey Class 2 apartment building with 75mm Commercial AAC Panels for internal shaft walls and service corridors, providing maximum fire separation between units.
- Internal shaft wall fire separation
- Rw+Ctr 38dB acoustic rating
- Service corridor fire-rated walls
- 120 shaft wall panels installed
Material Properties
Source: Walsc Design & Installation Guide. Values are indicative - confirm with Walsc for project-specific design.
Have a Question?
Whether you need a quote, technical advice, or project support - our team is ready to help. Fill in the form and we'll respond within 1 business day.