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Updates to the Building Code

By MBIE


MBIE will be making the following updates to the Building Code:

  • Aligning the provisions for hollow-core flooring with the Concrete Structures Standard to allow increased depth of hollow-core flooring. This gives building owners more options, and makes it easier to comply with the Building Code (amending B1/VM1).

  • Making light steel framing a standard compliance solution, which will reduce the need for peer review around the structural design of light steel-framed buildings. This will give compliance certainty for designers and developers considering the option of using light steel framing (amending B1/VM1, B1/AS1, and B2/AS1).

  • Providing a new test method for building facades up to 25 m using the BRANZ Evaluation Method as a way to confirm building cladding is weathertight (new test method E2/VM2).

  • Adding extractor fans as a compliant way to ventilate bathrooms and kitchens, so that homeowners can more easily comply with the new Healthy Homes Standards (amending G4/AS1).

  • Updating the Water Supplies and Foul Water sections of the Building Code to cite the most recent joint Australian/New Zealand plumbing and drainage standards. This will make it easier to show compliance, and aligns with current industry best practice (amending G13/AS1, G13/VM2, G13/AS2 and G13/AS3; amending G12/VM1, G12/AS1 and G12/AS2).

  • Bringing together six separate Fire Acceptable Solution documents into one all-encompassing document that is clearer, more consistent, and covers things that weren’t included in the previous version. This means less ambiguity and confusion across the sector about which document to use, and an easier way for people to find the information they need to do their job. The changes are summarised in the first edition 2019 C/AS2 fact sheet.

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