Understand the issue
What this means for your floor
The goal is to meet the finish-floor manufacturer's flatness and substrate requirements with a compatible preparation method.
What can change the recommendation?
Substrate typeInspect and measure the condition before selecting a repair. Separate surface preparation from damaged material or structural movement and record the agreed limits of work.
Movement or damageInspect and measure the condition before selecting a repair. Separate surface preparation from damaged material or structural movement and record the agreed limits of work.
MoistureRecord the source, affected layers and relevant readings. Confirm that the condition is resolved and the next flooring step is permitted before covering the assembly.
Required flatnessInspect and measure the condition before selecting a repair. Separate surface preparation from damaged material or structural movement and record the agreed limits of work.
Primer/product compatibilityIdentify this item during the assessment and retain the relevant photos or product records. Make the assumption explicit in the written scope instead of treating it as automatically included.