Porcelain is often suitable outdoors because of low water absorption, but not every finish or product is approved for every exterior application. A covered porch, vertical wall, pool deck, and uncovered patio create different requirements. The substrate, drainage, slope, mortar, grout, movement joints, and sealant must also be exterior rated.
Key considerations
- freeze-thaw resistance
- slip resistance
- water resistance
- exterior-rated options
- multiple finishes
- indoor-outdoor coordination