Grout is a joint material, not a waterproofing system
Grout completes the space between tiles. It does not turn a poorly prepared or unwaterproofed shower into a waterproof shower.
The grout choice still matters because different products have different working methods, cleaning requirements, appearance and resistance characteristics.
Cementitious grout
Cement-based grout is familiar and available in many colours. It must be mixed and applied according to the product instructions, and the joints need to be cleaned correctly while the material is workable.
Poor mixing, excessive wash water, incorrect joint preparation or early exposure to moisture can affect the finished colour and performance. A grout haze or uneven colour is often a workmanship problem rather than a reason to keep adding chemicals.
Epoxy grout
Epoxy systems can be useful where the specification calls for greater resistance to staining or chemical exposure. They are not automatically the right choice for every tile, joint or installer. They require disciplined mixing, application and cleaning within the manufacturer’s working time.
The finished appearance depends heavily on preparation. Once epoxy residue cures on a textured tile, removing it can be difficult and may damage the appearance of the finish.
Movement still needs movement joints
Neither cementitious nor epoxy grout should be used to bridge every change of plane or movement joint. Corners, perimeters and transitions need the appropriate flexible detail for the system.
In a luxury bathroom, grout colour is part of the visual design, but joint performance begins with correct substrate preparation, tile setting and movement planning.
Read more about Signature Bathrooms at Durban bathroom renovations.
Continue planning your renovation
Signature Bathrooms coordinates the design and construction details as one renovation scope. See the bathroom renovation service and continue with related bathroom renovation guidance.