ggpk Tile Floors July 12th, 2018 - 17:43:40
If a subfloor displays excessive deflection. it can usually be remedied by installing more plywood on top of it before tile is laid. and by reinforcing the joists from below. While it may make the floor higher than before. think of it as a sort of `insurance policy` against flooring failure.
How tough is the tile to be installed? Fairly thick quarry tiles. for example. may be rated for heavy duty industrial applications. although they are often installed in homes. Because they are thicker than normal tiles and able to withstand heavy traffic. they may be less prone to cracking than a sensitive. thinner tile. For that matter. natural stone such as marble and granite are on the other end of the spectrum - they crack even easier than ceramic tile and should not be used in settings where any excess deflection is possible. Intuition may tell you they are stronger than ceramic. but in fact they are more brittle and prone to cracking. They need twice as rigid a floor as ceramic.
The need for repair is rare. but it`s easy to have damaged tile replaced. Ceramic is strong. but it has been known to break when significant weight is accidentally dropped on it. Replacement is as simple as removing broken pieces. laying replacement tile. adding new grout to the area. and perhaps new sealant. Keep a few tiles around so that they match if needed. The occasional wipe or mop begins and ends the care-free maintenance of ceramic tile. The sealant that was applied during tile floor installation made it impervious to water and stain. Ceramic tile comes as close to requiring no upkeep as any flooring available. Of course. tile needs regular cleaning. Because it is impenetrable to water. tile patios and utility spaces can literally be hosed down. You only need standard off-the-shelf cleaning products.
What floor covering was on the floor before? If it had ceramic tile or stone. and the floor received reasonable traffic for years with no cracking or broken grout. it`s a pretty good bet that the subfloor is up to the job. If it was vinyl. carpet or hardwood. we are still in the dark.