Are porcelain tiles good for outdoor?
The simple answer is Yes!
Porcelain is one of the most reliable tile materials for outdoor use because it’s very dense and has low-porosity, so it resists water absorption, which is a big factor in frost performance and long-term durability outside. The same qualities also make porcelain stable through temperature changes (heat/cold cycling), which is why it’s commonly used both indoors and outdoors.
Rimini Dark Grey outdoor porcelain tiles 60x90x2cm
It is very important to be aware of the main properties of porcelain tiles and how to use this material correctly. To be able to choose the right surface finish of the tiles and the suitable location for these. Most people make mistakes when they choose tiles with a low anti slip rating which can't fulfill the requirements for the space.
The main characteristics for porcelain tiles
Porcelain performs very well indoors and outdoors based of these aspects:
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Low water absorption → less risk of damage in freezing conditions (frost).
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Hard-wearing surface → good resistance to abrasion and outdoor foot traffic.
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Stable in temperature swings → suitable for sun-exposed areas as well as winter conditions.
Red Vintage Victorian Era Porcelain tile 20x20cm
Red Vintage Victorian Era Porcelain tile 20x20cm
A very important thing for the exterior tiling is to handle the job correspondingly as installation matters, correct base and drainage, the use of an appropriate adhesive (usually S1 standard), things which have to be discussed with the builder before the job is started.
There are two types of porcelain tiles which can be used outdoors- 10mm and 20mm thick tiles. The decisive point whether to use a certain porcelain tile outside is based on the slip resistance. Slip resistance comes from the surface texture/finish and how it’s tested.
Practically porcelain tiles are used:
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10mm porcelain is more common indoors (adhesive fixed), but can be used outside in some designed areas if the product is rated for it or a special sealant is applied for slip resistance.
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20mm porcelain is mostly used for outdoors (patios/terraces) because it’s robust and works with pedestal / mortar / bedding systems — it has a special textured finish which is frequently marketed as R11 as a starting point.
Multi Colour Rust Slate Outdoor
Slip rating guidance based on the location of the tiles
Here is a short explanation on how to understand slip rating standards:
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Indoors + shoes + mostly dry → look at R rating (often R9–R10).
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Wet barefoot areas (wetrooms, showers, pool surrounds) → look at DIN 51097 (A/B/C).
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UK commercial / higher-risk wet areas → if PTV is provided, 36+ wet is commonly referenced as low slip potential.
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Outdoor patios in the UK climate → many outdoor porcelain ranges are sold as R11 for wet grip.
Village Natural Wood effect tiles 20X120cm
Based on the facts above in Uk tiles are use for:
Dry domestic areas (living rooms, bedrooms): often R9–R10
Kitchens / hallways (higher spill risk): often R10
Belgravia Caen Porcelain Tiles 20x20cm
Bathrooms floors (general): commonly R10 (and consider PTV if specified)
Wetrooms / shower floors: look for barefoot DIN 51097 “B” or “C” (because this is a barefoot/wet scenario, not a shoes scenario)
Travertine Beige floor porcelain tiles 60x60cm
Outdoor tiles and their specifications
Outdoor porcelain ( mostly in 20mm / 10mm)
Patios / paths / terraces (wet weather): starting at R11 used as “non-slip” for outdoors.
Country light outdoor porcelain tiles 60x60x2cm
Steeper slopes, ramps, commercial entrances: Often requiring higher grip (this specific areas will need a special surface— it has to be verified with the project spec and test method).
Tilejob recommendations:
From our experience at Tilejob we can say that in time the tiles will wear out and their slip rating will no longer be the same as it was at the minute of installation. And this is an aspect which often requires extra measures like anti slip sealant which is applied at the after installation and over a period of time depending on the type of material.
Rimini Dark Grey outdoor porcelain tiles 60x90x2cm
Final thoughts
Porcelain is a very popular material due to its characteristics. With the progress of advanced printing technologies porcelain can replicate any type of natural material from stone to intricate marble veining, flower prints, metal effects and even wallpaper motifs. It can be used indoors and outside with the corresponding slip resistance which will be effective for any possible hazard. Always consult an experienced person who can help you to choose correctly. At Tilejob we have a large selection of porcelain tiles which are suitable and will perform in any corner of your house! Have a look for more ideas and ask for assistance at any time in our online chat!
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