Imagine you’ve just spent hundreds of dollars to update your tile floor with beautiful, rectangular ceramic tile. Your kitchen and bathrooms have finally received the facelift they’ve needed for years. Now, whenever your friends and family come over — and even when you’re home alone — you feel a sense of pride because you personally selected and invested your hard-earned money in these stunning floors that complete the look and feel of your home.
Now imagine that you turn on the bathroom light one day and notice a large crack through one of the tiles. Your beautiful, updated bathroom has gone from looking brand new to used and abused in an instant. You’ve been taking great care of your tile, so how could this have happened?
There are a few very common reasons why tile cracks, all of which have to do with the installation of the tile. Whether your tile floor already has cracks in it or you just want to prevent possible cracking in the future, below are a few things you’ll want to know.
Why Does Tile Crack?
Cracks occur in tile for four main reasons. The first is if the subfloor is improperly prepared. In addition to ensuring that the subfloor is flat and stable, the installer must make sure that it is clean. This means more than just vacuuming up any particles; it means that the subfloor should be mopped with a solvent cleaner like mineral spirits. This will remove any grease, wax, oil or paint that could mix with the mortar and cause it not to harden properly, according to a GeeksOnHome article.
Second, the mortar must be spread evenly across the subfloor surface and given the time to harden. If the mortar is only adhering some of the tile to the subfloor, or if it isn’t completely hardened, the tile can shift and, therefore, crack.
Third, the tile floor can crack if the expansion joints are not large enough. What are expansion joints? These are the spaces left between the tiles during installation, which are grouted afterward. These joints are there to absorb pressure from shifting tiles. If they are too thin, the tiles won’t have enough room to expand and contract, causing cracking.
Finally, tile floors installed over a concrete subfloor are the most susceptible to cracking because the concrete itself is prone to cracking, the GeeksOnHome article states. Generally, hairline cracks in the concrete will not present an issue to the tile floor above; however, cracks wider than 1/8 inch will eventually transfer to the tile, it notes. This is known as reflective cracking, and it can be easily prevented by adding a crack isolation membrane during installation.
How Can Cracking Be Prevented?
The WarmlyYours Prodeso uncoupling and crack isolation membrane is made of polypropylene with rounded square-shaped reliefs. This material and structure allows it to solve two of the four main installation issues mentioned above: It ensures that the installation surface is flat and stable, and it prevents reflective cracking by acting as a barrier between the subfloor and the tile. Instead of a crack transferring from the concrete to the tile, the crack isolation membrane absorbs the crack energy and spreads it over a large area, preventing telegraphing through the tile. In some cases, the crack may instead occur in the grout joint. Although it’s unsightly, it’s very easy to fix and it’s a much better alternative to a crack in the tile!
In addition to crack suppression, the Prodeso membrane is designed to hold heating cable in place, making the installation of in-floor heating easy. When you’re installing new tile, it’s the perfect time to consider heating your floor!
To install the membrane, a professional must simply cut it to size, place it over the wet adhesive on the subfloor, press the membrane into the adhesive with a plaster trowel float, install the heating cable (if desired), apply unmodified thinset to the membrane and the backs of the tile, and lay the tile! This can all be done in the same day, step after step.
Why Is Crack Suppression Important?
Suppressing cracks in your tile floor can save you hundreds of dollars. According to a HomeAdvisor article, most homeowners spend between $245 and $545 to repair tile and grout. By properly installing tile and using a Prodeso crack isolation membrane, you can save yourself time and money, all while keeping your tile flooring in pristine, pride-worthy condition.
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