Soil, slabs and cracking in Mambourin VIC
Mambourin sits on the Werribee Plains, where soils formed from basalt typically have heavy clay subsoils that shrink and swell as they dry and wet, with weathered basalt often within about a metre of the surface. That is why the engineer's slab design and the soil report for your lot matter, and why water kept away from the slab edge after handover is just as important. Slab cracks over 2mm have shown up in our Mambourin handover reports.
Soils on the Werribee Plains are basalt derived with reactive clay subsoils.
Rock can sit close to the surface and vary across a lot.
Your AS 2870 site class comes from the soil test for your lot.
Downpipes and ground falls protect the slab edge.
Slab cracks wider than 2mm are recorded against the tolerance.
More about Mambourin
- Building a new home in Mambourin VIC
- Buying a home in Mambourin VIC
- Growth and development in Mambourin VIC
- Permits, council and building disputes in Mambourin VIC
- Termite and pest risk in Mambourin VIC
- Common building defects in Mambourin VIC
- Wind, weather and site conditions in Mambourin VIC
Written by our local inspection team from work carried out in Mambourin. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.


