i am looking for the best way to lay 600 x 600mm polished porcelain tiles on a caber chipboard floor can anyone help?
Your best answer will be on the tile boxes or on the bags of thinset. Generally you need a 1' subfloor, 1 1/4 being better. Most tile setters like small grout lines with this type of tile using toothpicks as spacers. Using the latex admix will help with expansion and contraction cracking. Keep the installation area well above freezing before, during and until cured, also do not let it get excessively low in humidity, as this will cause cracking from drying too fast. Always work your way out of an area, to avoid walking on freshly laid tile. Every so often pick up a just laid tile and check for 90%+ coverage of adhesive. Try to avoid getting any thinset on the face of the tile, as it may stain it. Use non sanded grout. If you have any specific questions, email me
Chipboard is not a suitable underlay for tile. Check the bag of mortar for acceptable substrates, at the very minimum you will need a tile backer. If there is any deflection in the chipboard I would recommend putting plywood down before using tile backer. Remember that tile backers don't add much strength as far as flexing is concerned, they are used so the underlayment has a similar expansion and contraction rate as the tile itself. Wood will not give you this and cracks will develop over time.
