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On sites with moderate, high and extreme reactive soil AS2870 Residential Slabs and Footings requires special provisions for sewerage and stormwater drainage installations.

This Certifier Practice Standard is prepared by the Commissioner for Fair Trading under section 14 of the Building and Development Certifiers Act 2018 (B&DC Act); Section 14 provides that a registered certifier’s conditions of registration may require the certifier to carry out certification work in accordance with specified standards or methodologies prepared by the Commissioner.

When installing articulation into your plumbing and drainage, make sure the fittings you use provide sufficient flexibility for the prescribed movement on that site.

Explains AS/NZS 3500.2:2021 Appendix G.