What should inspectors look for when inspecting tile adhered with mortar?

When inspecting tile adhered with mortar, it is crucial to evaluate for failed bonding. This refers to the condition where the tile does not properly adhere to the substrate, which can lead to a variety of problems including cracking, water infiltration, and overall structural failure of the tiled surface. Inspectors should look for signs indicating that the bond between the tile and the mortar has been compromised. These signs might include any movement of the tiles when gently tapped, visible lifting, or gaps between the tile and the substrate.

Understanding failed bonding is essential because it can result in not just cosmetic issues but also structural concerns over time. Addressing these issues early can prevent more significant damage and costly repairs later on. In contrast, while color fade, cracks in the grout, and surface stains may indicate other types of issues, they do not directly assess the fundamental integrity of the tile's installation in relation to the mortar adhesive's performance.