groutlines
Grout lines are the narrow spaces between tiles, whether they are found on floors, walls, or other surfaces. These spaces are filled with a material called grout, which serves several important functions. Grout provides structural support, helping to hold the tiles firmly in place and preventing them from shifting or cracking. It also creates a uniform and aesthetically pleasing appearance by bridging the gaps between individual tiles and creating a cohesive surface. Without grout, tiles would be loose and the overall look would be disjointed.
The composition of grout can vary, but common ingredients include cement, sand, and water. Additives can also
Over time, grout lines can become discolored or stained due to dirt, mold, mildew, or everyday use.