Porcelain Paving: What Goes Wrong and How to Avoid It
Porcelain paving is often selected for its clean appearance and low maintenance.
But when issues arise, they are rarely caused by the slab itself.
They are caused by installation.
What Makes Porcelain Paving Different
Unlike traditional materials, porcelain paving is:
Non-porous
Dimensionally stable
Low water absorption
This means water must be managed around the slab, not through it.
Common Failure Points
Sub-base instability
Poor drainage planning
Incorrect bedding method
Inadequate jointing
These issues lead to movement, water pooling and reduced lifespan.
Why Installation Matters More Than Material
20mm porcelain slabs are engineered for strength.
But without correct installation, performance is compromised.
The system must support the material.
Practical Recommendations
Ensure stable sub-base
Build in drainage falls
Use correct bedding method
Select appropriate jointing system
When to Avoid Porcelain Paving
Where drainage cannot be controlled
Where sub-base preparation is limited
Where installation quality cannot be guaranteed
If you are planning an outdoor project, speak to us before specifying.