ISO 11336-1:2023

Overview

ISO 11336-1:2023 - Large yachts - Strength, weathertightness and watertightness of glazed openings - Part 1 provides technical requirements for independent glazed openings on large yachts (hull length LH ≥ 24 m). It covers design criteria, materials, framing and testing to ensure glazed openings resist design loads and prevent water ingress. The standard applies to openings above the deepest waterline (dsw) that are critical to hull integrity and excludes horizontally positioned glazing, glazing with constrained edge rotation, and additional fire‑integrity or damage‑stability rules for yachts carrying more than 12 passengers (those are handled by appropriate marine administrations).

Key topics and technical requirements

• Design criteria and loads
  • Design pressure models for different locations (end bulkheads of superstructures, side shell, etc.).
  • Parameters for strength, weathertightness and watertightness under navigation conditions.
• Scantling and pane sizing
  • Procedures for determining basic pane thickness for rectangular and circular equivalents.
  • Calculation of design flexural stress and selection of monolithic, laminated and insulating glazing.
• Framing and mounting
  • Framing types, dimensions, support pads and material requirements for window frames and closing appliances.
  • Clear‑view framing guidelines based on opening size.
• Materials and testing
  • Glass and rigid plastic material selection criteria and laboratory testing protocols.
  • Hydrostatic structural testing procedures for marine window systems, acceptance criteria and test reporting.
• Storm shutters, deadlights and robustness
  • Guidance on storm shutter construction, glazed equivalents, attachment, and testing of secondary barriers.
• Normative and informative annexes
  • Worked examples, stiffness calculations, statistical coefficients, direct laminate cross‑section methods and testing guidance (Annexes A–J).

Practical applications

• Use the standard to design and verify yacht glazing that meets safety and performance expectations:
  • Ensures structural strength of windows and portals against wave and wind loads.
  • Prevents water ingress (weathertightness/watertightness) that can compromise habitability or vessel integrity.
  • Provides test methods and acceptance criteria for supplier and factory validation.
• Useful for design documentation, procurement specifications, type‑approval and certification evidence.

Who should use ISO 11336-1:2023

• Naval architects and yacht designers
• Shipbuilders and outfitting yards
• Marine glass and glazing manufacturers
• Test laboratories and quality assurance teams
• Flag administrations and classification societies assessing compliance

Related standards and references

• SOLAS and International Convention on Load Lines (as applied by marine administrations)
• Large Commercial Yacht Code and REG Yacht Code (practical application references)

Keywords: ISO 11336-1:2023, large yachts glazed openings, yacht glazing standard, marine window testing, weathertightness, watertightness, design criteria, framing, laminated glass.