Damage to plumbing from paving movement, in Yeronga, a Southern suburb of Brisbane.
Damage to plumbing from paving movement. Identified by Peter Weddell owner/operator of Qld Home Buyers Inspection Service
Although movement of paving around buildings and swimming pools is quite a common problem, it must not be understated!
Some causes of movement:
- After the footings have been constructed the soil is rarely compacted before the paving is laid.
- Type of soil supporting the paving being reactive to water.
- Leaking from damaged plumbing pipes.
In most cases paving movement is acceptable but in others it can develop into a safety issue or cause damage to other items.
Unacceptable degree of paving movement:
This shows the significance of movement causing the tiles to crack and considerable differences in levels. This is a potential safety hazard and must be rectified.
This down-pipe is damaged below the surface allowing water to escape and potentially cause expensive footing movement.
When does movement of paving require rectification?
- If it has moved to a degree that it becomes a safety issue and can cause injury from tripping.
- When movement causes damage to plumbing within it.
- Where movement may place pressure upon a structure causing it also to move, such as a retaining wall.
Implications of damage to plumbing from paving movement. Related issues:
- These problems may seem to be minor and considered by inexperienced inspectors not worthy of including in a building inspection report.
- Some types of tiles laid over paving can also present a dangerous hazard, when wet.
- Uneven levels of paving can be a potential safety hazard.
- Paving causing damage and leaking plumbing pipes can also cause movement of the foundations.