Cracks in buildings are common and can range from harmless cosmetic blemishes to indicators of serious structural issues. Understanding the different types of cracks, their causes, and when to be concerned helps Melbourne property owners make informed decisions about their buildings.
Hairline and Fine Cracks
Hairline cracks, less than 0.1mm wide, are common in new buildings as they settle and in older buildings due to natural material movement. Fine cracks up to 1mm are generally cosmetic but should still be documented in a dilapidation report as they provide a baseline for monitoring.
Structural Cracks
Cracks wider than 2mm, particularly those following diagonal or stepped patterns in brickwork, may indicate structural movement. These require professional assessment to determine whether active movement is occurring and what remedial action may be needed.
- Vertical cracks: often caused by thermal expansion or minor settlement
- Horizontal cracks: may indicate lateral pressure or wall bowing
- Diagonal or stepped cracks: commonly associated with differential settlement
- Map or pattern cracking: typically caused by material shrinkage
Construction-Related Cracking
Nearby construction can cause new cracks or worsen existing ones through vibration, ground movement, and changes to soil moisture. A pre-construction dilapidation report documents existing cracks so any new damage can be identified. Use our cost calculator to estimate your report investment.
How This Relates to Your Property
Monitoring cracks in your property is important regardless of nearby construction. If construction is planned or underway, having a professional baseline makes all the difference. Read our crack assessment guides for more detail. Learn about our inspectors on our about page.
Get Professional Advice
If you need a dilapidation report in Melbourne, get a free quote today. We connect you with qualified building surveyors and structural engineers across metropolitan Melbourne.