Tiling
5  Things to condsider when choosing floor tiles

So you’ve decided to opt for a tiled floor, but there’s a lot more to buying floor tiles than you’d imagine. Your challenge now is to select the type, style, finish and colour to suit your décor and requirements, not an easy task. These tips should help.

CONSIDER COLOUR

Have you decided on a colour for your floor tile? You’ll need to consider your room colour scheme to make a choice that works. What colour are the walls? Furniture? Take a look at our colour wheel to make sure your scheme looks harmonious rather than hideous.

Have you also decided which colour grout to choose? There is such a plethora of options when it comes to grout colour. Will you choose one that matches the tiles, or contrasts? Think carefully about this because this can have a big impact on the overall look of your floor.

PATTERNED OR PLAIN?

Do you intend to have plain walls? If so, patterned tiles will go beautifully and can have a real dramatic impact. But consider this, will you love your patterned tiles forever or will you get bored of them? Patterned tiles can be pricey, you’ll want to make the right choice so you’re not replacing them in the near future because the pattern drives you nuts.

Are you considering incorporating a coordinating or contrasting accent border? It is an easy way to add interest and style, and it gives your floor sophistication. If you’re planning on patterned wallpaper then choose your patterned tiles with extra care to avoid a clashing catastrophe, or go for a more neutral style floor tile.

SIZE

Again, a very important consideration, tile size can affect the overall look of the room, depending on its dimensions. For example, choose large format patterned floor tiles for a small kitchen and the pattern will likely get lost. But large plain tiles for a small kitchen will give the illusion of extra space. For larger kitchen areas, you have more flexibility and can get away with pretty much any size.

SUITABILITY

One important consideration is the the suitability of your tiles to the area you intend them; if it’s a high traffic area you’ll need something that wears well. Also, will the tile need to be maintained regularly? Some types of natural stone look beautiful, wear well but take a lot of care and maintenance.

One look that is highly fashionable at the moment is the high gloss finish. These look beautiful and chic but if are not be such a great option for a family kitchen if they become slippery when wet.

LAYOUT

There is a whole host of ways to lay your tiles to make the most of them. But remember that each style of tile has its own ‘rules’ when it come to layout design. Your choice of tile dictates to a certain degree which layout will you go for, a patterned tile will need a simple side by side layout, for example.

With plainer tiles you may opt for a more interesting design like the Basket weave or Herringbone, in which case you’ll need to choose rectangular or metro shape tiles. Or you may want to stick to a simple horizontal or vertical design. Modular floor tile designs also give you the option of being creative with your design.

There are lots of things to consider when choosing floor tiles so the best approach is to take your time selecting your favourites, and acquire samples to see how they will work in your room, to make a choice you’re delighted with.

Why do Tiles “Tent” & Lift?

It has been noted that there has been a significant amount of people who have encountered problems with tiles having “tented” & lifted for ‘no apparent reason’.

Reports & claims that this occurrence is predominantly greater with local ceramic tiles, and less so with imported tiles has not been proven conclusive. Porcelain tiles as well as natural stone tiles have been known to “tent” as well.

Ceramic tiles experience what is termed as, “irreversible moisture expansion”. This generally occurs during two points in a tiles life.
Firstly during the manufacturing process, after the tiles have been removed from the kiln, they remain hot and needs to be gradually cooled down at room temperature. This can sometimes take as long as 36hours. In the cooling process, the tiles ‘suck-up’ moisture from the air, which results in the tiles remaining in an expanded state and not contracting to its intended technical spec. This expansion is irreversible and often contributed to tiles having variations in size.

The second time, which often is the most critical, is during the installation of the tiles. At this point the tiles ‘suck-up’ moisture from the tile adhesive, indirectly fast curing the adhesive such that it sets in less than the manufacturer recommended time it takes for effective adhesion to occur. At this point the tile, due to the water absorption, also ‘grows’ irreversibly. Latex based additives such as Key It and Bond It are normally recommended to slow down the curing process as well as add elasticity to the adhesive.

One is likely to encounter manifested problems associated with tiles that have a high water absorption rate especially during periods of the year where extreme temperatures are experienced. The more water absorbent a tile is, the higher the risk of irreversible moisture expansion.

In hot months the tiles, substrate and walls would normally be in an expanding state. This growth of the tile, without the latex based component that allows the adhesive elasticity, would be far too great for the adhesive to cope. The tile grows in all lateral directions, inevitably pushing against one another, causing stress and tension one upon the other with no room to move, the adhesion breaks resulting in what is termed as tenting (when tiles lift in a tent-like formation).

Likewise in colder months when the substrate and walls are contracting, the tiles that are already in an irreversible expanded state cannot cope with the rapidly contracting surrounds. The tile adhesive as well, is contracting while the tile remains expanded. Adhesion becomes stressed, inevitably reaching a breaking point giving way to the tile breaking free (vaguely described as ‘gun shots going off’).

Contributing factors that would encourage tenting would be:

  • Poor quality or Incorrect tile adhesive being used.
  • Surplus tile adhesive between tiles not being removed during installation (each tile should be separate one from the other, not connected to each other with tile adhesive in between).
  • Tile adhesive being used as grouting.
  • Key It / Bond It (Latex Additive), not being used. And if used then not being used correctly, e.g. over-dilution
  • Grouting joints being less than manufacturer recommended spec.
  • Expansion joint not being used. And if used, not corresponding with substrate construction joints &/or minimum required perameters.
  • Lack of perimeter expansion joints (this could even remain open without using a proper silicon joint, provided all cement and any other inhibitor is removed and joint remains clean).
  • Thermal shock especially during winter and summer months where there is a sudden rise or fall in the room temperature. Commonly associated with areas where air conditioners are used and an external door is suddenly opened, allowing rapid air-movement out of the climate controlled area.

The above are but a list of a few contributing factors, least to mention one has to consider the workmanship behind the installation, the type of product you’re using, the surface you’re tiling on, and so on. If all considerations had been taken into account, including the inherent irreversible moisture expansion of the tile mentioned, then there should be no reason why the tiles would lift.

For more info or advice, drop us a mail and we will be sure to respond.

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