BLOG: How to Lay Porcelain Paving

BLOG: How to Lay Porcelain Paving

Porcelain is a very attractive versatile tile for outdoor use and is becoming increasingly popular as it is scratch and fade proof and does not stain. It is a non porous material that does not need sealing. However because it is non-porous, a little more attention is required when laying these tiles.

You need :

  1. Sub Base
  2. Bedding Mortar
  3. Bonding Primer Paste
  4. Joint/tile grout 
  • Purchase all the paving you need in one batch to ensure you have a consistent colour and pattern
  • Lay tiles out on the area in a rough draft to make sure you have enough slabs.
  • Dig out area to a depth of 150mm and allow for a 100mm sub base, 30mm mortar base and the thickness of the tile
  • Make sure your paving will be 150mm below the proof course of the house if it is going to be laid up to the brickwork
  • Porcelain paving requires a fall of approximate 1:60 or 17mm of fall for every metre metre width and length of the patio
  • Erect taut string lines to ensure correct height and alighment 
  • Lay a Type 1 MOT or General Sub-Base (GSB) and rake out to create an even layer approx 30mm below your string line
  •  Use a plate compactor to compress to 50mm below the string line
  • For the bedding mortar: use a mix of 6 parts sharp sand to 1 part Portland Cement to create a workable firm consistency that will stand in peaks
  • Apply a slurry primer to the underside of the Porcelain tile making sure non makes contact with the top surface because once set it will be almost impossible to remove -keep a bucket of water and wet cloth by your side to wipe tiles clean of any residue
  • Lay prepared tile on bedding mortar and tap down with a rubber mallet to correct level using the your string line as a guide
  • Use tile spacers to create uniforn spacing
  • Use a suitable outdoor/weather repellent grout/ jointing material such as easyjoint and do not walk on for at leastr 24 hours

A few things to remember about Porcelain tiles - as they are non porous if you do not use a slurry primer the tiles will not stick to the mortar base. You can only cut Porcelain properly with a diamond blade that is specifially for cutting Porcelain. If you try to use the traditional method of a hammer and chisel you will chip the porcelain. Always being by laying your tiles from the corner and work outwards.

Posted by Tina Abbey
16th March 2019

Back to news