When a tile (or a brick for that matter) is too porous, it will suck the water out of the mortar without allowing it to set properly, leaving weak bonds between mortar and tile.
- For the proper laying of tiles. hire an experienced mason.
- Before fixing, tiles must be soaked in water for about an hour. Soaking of tiles is not required in case of fixing with chemical adhesive.
- The wall surface is to be rough plastered using mortar composed of one part cement and two parts sand.
- On the wall surface, a coat of very thin cement slurry should be applied by brush at the time of fixing the tiles.
- The mortar is to be spread on the backside of the tile. This should be composed of one part cement and two parts sand.
- Tiles so placed in the mortar should be gently raped to ensure total mortar contact.
- Shade and Size variation is an inherent characteristic of ceramic tiles. Before fixing, the tiles should be mixed separate boxes to have random blending and avoid obvious patches.
- Mixing of time with cement, careless mixing or deliberate use of rich mixes will lead to wall tile failure.
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