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The National Construction Code (NCC) requires a minimum 20mm cavity between the leaves of the wall system, however each proprietary wall will have their own cavity requirements.
When designing and installing separating walls, PCG recommends referring to the system’s installation manual for information on cavities, acoustic performance, construction joints, set out and fixings.
Correct installation will minimize sound transmission between dwellings and thus improve amenity for occupants.
The Queensland Development Code MP 4.1 – Sustainable Buildings has been amended effective 2 November 2020. The main changes include the introduction of heating and…