iT-C930HT - JB2024122503 (100m), JB2025061702 (1150m), JB2025061703 (1000m)

Common issues

• Compression or settling of insulation over time, reducing thermal/acoustic performance and creating gaps
• Moisture or oil saturation of insulation in machinery spaces, degrading fire and thermal performance
• Damaged or missing cladding/retention mesh allowing insulation to sag away from hot surfaces
• Incomplete coverage at pipe penetrations, flanges and valve bodies where insulation was cut back
• Oil contamination near fuel/lube oil lines, raising a secondary engine-room fire risk

Inspection checklist

• Visual check for damaged, missing or saturated insulation on hot surfaces (exhaust manifolds, boilers, steam lines)
• Check retention (wire mesh, cladding, straps) is intact and insulation is not sagging or detached
• Look for oil or fuel staining on insulation near fuel injection equipment and flanges - a recognised engine-room fire risk area under SOLAS
• Confirm installed material matches the certified non-combustible product (cert. MERF000022G)
• Check penetrations and joints for complete coverage, with no exposed hot metal

Service intervals

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Critical spares

• Replacement insulation blanket/board matching the certified non-combustible specification
• Retention wire mesh, cladding sheet and fixing straps matching the installed system
• Fire-rated sealant/tape for penetrations, matching the certified system

Safety

• Oil-soaked lagging on hot surfaces is a recognised engine-room fire source - keep insulation clean and dry near fuel/lube systems
• Some mineral-fibre insulation materials can cause skin and respiratory irritation during handling - use PPE when cutting or replacing
• Missing or damaged insulation on exhaust piping is a burn hazard for personnel

Class survey

Deviation note: this order lists the item under 'CO2 Fixed System (Engine Room + Cargo)', but the certificate (MED Module F, non-combustible materials, cert. MERF000022G) and the batch/length references (100m, 1150m, 1000m) indicate a non-combustible insulation material, not a CO2 suppression system - the content above addresses the actual product. Surveyor checks condition of machinery space insulation as part of the fire safety survey, particularly oil contamination and coverage of hot surfaces per SOLAS II-2.