You do have the option to seal or not to seal your tiles. There are many factors to consider here. Location is one of the largest factors. Knowing where to put your tiles will tell you the type of elements it will be exposed to.
Of course you want your tiles to look good as long as possible. That is only understandable considering you spent your hard earned money for it. Sealing your tiles may cost you some more money but that only means your tiles are better protected from wear and tear.
Basically, some tiles are already glazed and some are already sealed. These tiles are more expensive than regular ones. Deciding to buy sealed tiles depends on your budget and the availability of the materials.
Porcelain and ceramic tiles are two of the most common tiles that do not need to be sealed. However, you have to be aware that there are two parts of a tile. One is the tile itself and the second is the grout.
The grout is the area that easily accumulates stains. This is one part of the tile you need to cover or seal. It is also naturally porous so it is easily damaged. On top of that, sealed grout is very easy to keep clean.
If you seal both the grout and the tile, there is a greater chance that your tile will last longer than you expect. It also keeps the strength of both grout and tile. Sealing is a good way of defending your tiles from stains, dirt, and spills. These are very common occurrences in homes especially if there are children around.
Sealed tiles and grout are easily detected. If you sprinkle water on top of it, the color will not change if it is sealed. If the surface turns darker, that means it is not sealed and is there before directly exposed to different elements.
Not all tiles need to be sealed. At the same time, it is definitely not required for you to seal your tiles. It is up to you if you think it is necessary or not. However, not sealing your tiles may lead to certain problems such as formation of stains, moisture, mildew, and molds.