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When thinking about using porcelain tiles outdoors there are a number of important considerations to take into account. Firstly, and very importantly, porcelain tiles have different grades and you will need to check that your chosen tiles are Grade 5 i.e. suitable for outdoor use. Check with the supplier or manufacturer if you are unsure and double check that they are suitable for extremes of weather if that is relevant to where you live.
Steps
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1Use a bonded cement/sand screed to level the concrete substrate if necessary. To avoid problems with the screed shrinking (and causing the tiles to crack), allow it to dry out for 1 to 2 weeks. For minor surface irregularities simply use a levelling compound.[1]
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2Ensure the surface that you are laying the porcelain tiles on is as level as possible, clean and dry, and remove any loose particles.[2]Advertisement
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3Select a "thin bed" adhesive for very flat surfaces with level differences of no more than 6mm. Otherwise select a "thick bed" adhesive.[3]
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4Always press the porcelain tiles firmly in place to avoid any air pockets forming underneath.[4]
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5Remove any excess adhesive from the tile surface immediately as it is difficult to clean off once dry.[5]
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6Allow the adhesive to dry for at least a day (longer in very cold weather) and protect from rain during the drying period if necessary.
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7Once the adhesive is dry you can then apply the grout between the tiles; the type you choose is important because some grouts are only suitable for narrow joints but others for wide joints up to 20mm. Press the grouting well down into the joints so that no air pockets are created and remove the excess with a damp cloth. Again, leave to dry for at least a day, covering if it starts to rain.[6]
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Community Q&A
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QuestionWhy does my tile under a covered patio get wet all over when it rains?Community AnswerThere may be cracks or faults in the sealing that allow water in and under.
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QuestionWhat size tiles are best when laying an exterior patio?Community Answer12x12 tiles are best for exterior patios, but you can use smaller tiles to make the space look bigger, or larger tiles to make the space look smaller.
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QuestionIf I am using a mix of leftover stone and porcelain tiles, can I treat them the same?Community AnswerYes, you can. The critical element is the grout - only use exterior grade or your project will disintegrate and fall apart.
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References
- ↑ https://todayshomeowner.com/video/installing-tile-outside-on-a-concrete-porch-or-patio/
- ↑ https://www.youtube.com/watch?v=4nuz4VOfjwQ
- ↑ https://www.youtube.com/watch?v=4nuz4VOfjwQ
- ↑ https://www.tilelines.com/outdoortile/
- ↑ https://www.tilelines.com/outdoortile/
- ↑ https://www.tilemountain.co.uk/blog/best-adhesive-and-grout-for-outdoor-tiles/
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