Grout is porous and vulnerable to moisture and soap scum. To maintain integrity, apply a penetrating sealer according to the manufacturer’s instructions. Use a soft-bristle brush for regular cleaning, avoiding abrasive scouring pads that can etch the surface. Ensure the bathroom is well-ventilated after use to prevent mold and mildew growth within the grout pores, which can lead to staining and premature deterioration of the grout lines over time.
Ask an ExpertTile and Showers
How do I maintain grout integrity in a tiled shower?
Maintain grout integrity in a tiled shower by using a high-quality penetrating sealer annually and ensuring proper ventilation to control humidity. Routine cleaning with neutral, non-acidic cleaners prevents chemical degradation of the grout material.