Crew members work and live at sea for extended periods. The comfort of accommodation spaces and public areas directly affects their physical and mental well‑being and work efficiency. Compartment insulation and interior outfitting not only involve thermal insulation, fire protection, and sound insulation, but also material environmental friendliness, human‑centred design, and fine workmanship. Jiangsu Haizhongzhou Shipping Industry Co., Ltd. treats interior outfitting as equally important as hull structure, and has established a whole‑process control system from material selection to final acceptance.
Insulation is the foundation of compartment comfort. Depending on the fire protection rating and sound insulation requirements of different spaces, Jiangsu Haizhongzhou Shipping Industry Co., Ltd. selects insulation materials such as rock wool, ceramic wool, or melamine foam. For high‑temperature areas such as the engine room casing and funnel, the insulation thickness exceeds 100 mm, applied in two staggered layers to reduce thermal bridging. The insulation thickness of partitions between accommodation cabins is 50 mm, and the required weighted sound reduction index (Rw) is not less than 45 dB, ensuring no mutual interference between adjacent cabins. For low‑temperature spaces such as refrigerated chambers and cold stores, polyurethane foam is applied on‑site or prefabricated panels are used, with thermal conductivity controlled below 0.022 W/(m·K), uniform foam density, and no voids.
During construction, Jiangsu Haizhongzhou Shipping Industry Co., Ltd. follows a “mock‑up first” policy. Before full‑scale interior work begins on a new vessel type, a full‑size mock‑up of a standard cabin is built in the workshop, including all elements such as bulkheads, ceilings, floors, doors, windows, furniture, and sanitary fittings. Construction proceeds only after the mock‑up is approved by the owner’s representative and the classification society surveyor. The benefits of this approach are threefold: it exposes design detail issues in advance (e.g., interference between piping and furniture, inconvenient switch locations, inadequate access panels); it provides a physical reference for workers, avoiding rework caused on‑site trial and error; and it ensures consistent colour and finishing standards.
Floor coverings use a lightweight floating floor system. A layer of vibration‑damping pads and mineral wool is laid on the steel deck, followed by a lightweight cement screed, and finally PVC tiles or ceramic tiles. This construction reduces the weight of the superstructure and effectively interrupts structure‑borne sound and vibration. Ceilings are installed using a modular suspended ceiling system, with vibration‑damping rubber pads at the connections between the ceiling grid and the deck underside. Access panels and air terminals are accurately positioned. Sanitary units are prefabricated as complete bathroom modules (prefabricated bathroom units), with wall panels, sanitary ware, and piping integrated in the factory and lifted into the vessel as a whole. This not only improves construction efficiency but also fundamentally solves the common problem of bathroom leakage.
Furniture uses flame‑retardant panels that meet the requirements of the IMO Fire Test Procedures Code, surfaced with fire‑resistant laminate or environmentally friendly water‑based paint. Upon material arrival, Jiangsu Haizhongzhou Shipping Industry Co., Ltd. performs sample tests, focusing on formaldehyde emission levels and smoke density ratings. For special areas such as hospital spaces, additional antibacterial coatings and anti‑slip floor treatments are applied.
Lighting in the accommodation spaces is also designed with human factors in mind. Cabins are fitted with dimmable LED lights, and bedside reading lights and USB charging ports are provided. Emergency lighting and low‑location lighting in corridors and public spaces are arranged in accordance with SOLAS requirements, with clear signage and adequate illumination. Before delivering each vessel, Jiangsu Haizhongzhou Shipping Industry Co., Ltd. invites the owner to send personnel for a “stay‑aboard experience”, putting forward improvement suggestions from the user’s perspective. This user‑centred approach has won high recognition from owners.
