Grout is a porous cement that fills in the spaces between your floor tiles. Without grout, your tiles will slide around and eventually come loose.
Grout is necessary for keeping your tiles in place but it can also be damaged over time by heavy traffic or poor maintenance practices. If you take care of your grout per the instructions from an installer, you can expect many years of high performance from it!
You may have noticed dark spots in public restrooms. These are where grout was not laid properly or had chipped away over time.
Flooring contractor is the perfect person to ask about how often you should clean your grout and which products work best for this task because he's the one who installed it.
The answer depends on the quality of grout, traffic in that area, and other factors.
Sequoia Flooring
https://www.sequoiaflooring.net/
