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Rockfibras do Brasil Industria e Comercio Ltda

A-60 Deck with Rockfibras PNR-128 insulation

Fire Division Panel · Ship Structure & Outfitting

Class-certified type (DNV register) · technical data sheet not yet verified​​‍‍‌‌‌​​‌​‍‌‌‍⁠‌‌‌‌

A-60 Deck with Rockfibras PNR-128 insulation by Rockfibras do Brasil Industria e Comercio Ltda. DNV MED certificate MEDB000033V.

Specifications

Technical data.

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IMO ApprovedYes
Inspection

Inspector Detail

Common issues

  • Insulation compression or displacement from foot traffic/stowage against deck insulation without protection
  • Moisture ingress into the mineral wool insulation reducing thermal/fire performance
  • Fixing pin/clip corrosion allowing insulation to sag away from the deck
  • Vapour barrier damage leading to condensation within the insulation package
  • Unauthorized penetrations breaking A-60 continuity
  • Facing/cladding damage exposing insulation to mechanical damage

Inspection checklist

  • Visual check of insulation cladding/facing for damage or displacement
  • Check fixing pins/clips are intact and insulation is firmly secured to the deck
  • Inspect for moisture staining indicating vapour barrier failure
  • Verify no unauthorized penetrations exist without an approved fire-stop detail
  • Check insulation thickness/coverage is maintained at deck penetrations, stiffeners and edges
  • Confirm certification/type approval marking is traceable to the fire control plan

Service intervals

Visual condition surveyat each annual/intermediate class survey
Fixing/cladding repairon condition, whenever damage is found

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

Critical spares

  • Matching certified mineral wool insulation of the same type as installed, per the panel manufacturer's specification
  • Facing/cladding material matching the original certificate
  • Fixing pins/clips and vapour barrier material of the approved type

Safety

  • Any breach or uncertified repair can compromise the A-60 deck fire division rating - treat as a fire safety deficiency until restored
  • Mineral wool fibres are an irritant - use appropriate PPE when handling during repair
  • Do not penetrate without an approved fire-stop detail for the specific penetration

Class survey

Checked as part of fire division integrity surveys under class/SOLAS II-2: surveyors confirm the A-60 deck insulation matches the approved fire control plan, that penetrations are properly fire-stopped, and that any repairs use insulation and cladding covered by an equivalent type approval.

Estimated lifetime: Not applicable in running hours - passive fire insulation is expected to last the structural life of the deck if undamaged, moisture-free and unmodified.

Classification

DNV type approval

Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.

CertificateMEDB000033V
Open the certificate at DNV
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