Concrete (Substrates)

Concrete substrate conditions can significantly affect flooring performance, adhesion, dimensional stability, and long-term serviceability. Most flooring inspectors do not perform structural concrete evaluations, but instead assess concrete as a flooring substrate to determine whether conditions were compatible with the installed flooring system and manufacturer requirements.

Because concrete slabs are commonly concealed beneath finished flooring, evaluation is typically limited to non-destructive observations and accessible testing. Common assessment areas include moisture conditions, flatness, surface preparation, contamination, alkalinity where accessible, and overall substrate compatibility.

Concrete-related conditions are generally evaluated only for their potential influence on flooring performance rather than as independent structural concrete defects. When conditions cannot be adequately assessed without destructive testing, referral to qualified concrete or structural professionals may be appropriate.