Before you start
Gather the appropriate supplies and review the specific equipment manual.
- Survey report
- Material and coating history
- Qualified marine surveyor
Step-by-step instructions
Ask which instrument was used
Different meters and settings respond differently to fiberglass laminate, coatings, core and backing structures.
Identify the sampled area
Note whether readings were taken over a cored deck, solid laminate, keel area, antifouling or near metal fixtures.
Compare patterns
A systematic map of elevated readings can be more informative than a single spot reading.
Look for supporting evidence
Soft spots, percussion sounds, staining and actual laminate samples may change the significance of the readings.
Ask for a reasoned recommendation
An experienced surveyor can decide whether further inspection, drying or structural work is warranted.
Safety note
A moisture meter is a screening tool, not a definitive measure of laminate integrity. Do not drill test holes without authorized professional guidance.
Key takeaway
Readings mean more when paired with location, construction and other inspection findings.
Keep this job on your maintenance schedule
Save the topic as a maintenance task, choose a due date or engine-hour target, and record future service. Free and stored on your device.
Add to my maintenance plannerThis guide is for general education. Follow your equipment manufacturer’s instructions, current navigation guidance and applicable marine safety standards. When uncertain, use a qualified marine professional.