Designing offshore accommodation modules is a complex and crucial task that demands meticulous attention to detail. The successful implementation of these modules relies on considering various factors, including structural stability, corrosion resistance, safety requirements, and occupant comfort. Let's delve into the key considerations and design principles involved in creating these remarkable living spaces at sea.
  • Structural Design and Strength:
The structural design forms the foundation of offshore accommodation modules. Rigorous engineering principles are employed to ensure the modules can withstand the harsh marine environment. From withstanding high wind speeds and rough sea conditions to providing stability during earthquakes, careful analysis and calculations are conducted to ensure the modules possess the necessary strength and structural integrity.
  • Corrosion Resistance and Waterproofing:
The marine environment poses significant challenges in terms of corrosion and water intrusion. Offshore accommodation modules must be equipped with robust corrosion-resistant materials, such as specialized coatings and alloys, to combat the corrosive effects of saltwater. Effective waterproofing measures, including sealing mechanisms and moisture barriers, are implemented to prevent water infiltration and maintain a dry and habitable interior environment.
  • Safety Requirements:
Safety is paramount when designing offshore accommodation modules. Adhering to stringent safety standards is crucial to protect the occupants in emergency situations. The modules are designed with fire-resistant materials, comprehensive fire detection and suppression systems, and clearly marked evacuation routes and exits. Careful consideration is given to the flow of people and evacuation capabilities to ensure swift and secure evacuation when necessary.
  • Comfort and Functionality:
Creating a comfortable and functional living environment is essential for offshore accommodation modules. Thoughtful space planning, efficient utilization of available space, and ergonomic design principles contribute to optimizing the living experience. Adequate lighting, ventilation systems, and noise control measures are incorporated to ensure a pleasant  and conducive atmosphere within the modules.
  • Customizability and Sustainability: 
Offshore accommodation modules often need to cater to diverse project requirements and client preferences. Flexibility and customizability play vital roles in meeting these demands. The modules are designed to be adaptable, allowing for personalized configurations that suit specific spatial needs and functional requirements. Sustainability is also a crucial consideration, with the integration of energy-efficient systems, renewable energy sources, and eco-friendly materials to minimize environmental impact.
In conclusion, the design of offshore accommodation modules requires a comprehensive approach, encompassing structural stability, corrosion resistance, safety considerations, occupant comfort, and customization possibilities. By addressing these key aspects, designers can create exceptional living spaces that harmoniously blend safety, comfort, and functionality, ensuring a remarkable offshore living experience.
Obtaining the American Bureau of Shipping (ABS) certification is an significant requirement when using portable accommodation modules to vessels. Working offshore involves a range of certifications, both personal and equipment-related, to ensure safety and suitability for the harsh marine environment. Despite the familiarity of the ABS certification name, many people may not know the exact criteria that a portable accommodation module must meet to receive it.
 
As a leading manufacturer of offshore portable accommodations, offices, and workshop modules, TLS has experience constructing modules that meet certifications for regulatory agencies worldwide. In this article, we will explain the process of obtaining ABS certification for a portable accommodation module.
 
To obtain ABS certification, manufacturers must follow guidelines provided by the ABS for designing and manufacturing equipment that meets their certification requirements. These guidelines are updated periodically to keep up with industry developments and improve clarity.
 
The certification process for a portable accommodation module involves four steps: Design Review of Module, Survey During Fabrication, Review for Installation Approval, and Survey Onboard Host Vessel. These steps cover the module's life cycle, from initial design and engineering to final installation and approval on a vessel or installation.
 
ABS Certification Step 1 – Design Review of Module
Within the design review of the module section of the guide, the ABS categorizes the requirements for portable accommodation modules into twelve areas:

  1. Structural Fire Protection
  2. Ventilation
  3. Piping Requirements
  4. Structural Requirements
  5. Materials of Construction
  6. Special Requirements
  7. Fire Fighting Requirements
  8. Protection of Steel
  9. Fire Integrity
  10. Electrical Requirements
  11. Machinery Requirements
  12. ILO Convention.
 
After the engineering team has completed detailed plans, drawings, and data that meet the ABS requirements, the manufacturer submits them to the ABS technical office for review. Once the review is finished, the drawings are returned to the manufacturer and then sent to the ABS surveyor for further inspection. If the product design meets the requirements, the manufacturer will receive a Product Design Assessment (PDA) certificate, and the product status will be updated to "Design Assessed." With this certification in hand, the manufacturer can proceed to the next step of the process.
 
ABS Certification Step 2 – Survey During Fabrication
The manufacturer begins fabrication of the module following the drawings and designs approved by the ABS technical office. Within the drawings that the technical office sent over to the surveyor are:

  • the approved plans for all aspects of the module
  • the required welding procedures with welder qualification tests and material certification/traceability
  • a list of the non-destructive testing (NDT) methods that will be used
  • necessary qualifications and certificates for items and equipment as required.
 
During the fabrication process, the ABS surveyor conducts periodic inspections of the portable accommodation module, verifying its compliance with the design plans and data package. The surveyor conducts various inspections such as visual inspections, insulation, and non-destructive testing (NDT), as well as tests of systems such as general alarms and fire detection. Upon completion of fabrication, the module is marked for identification purposes, including details like the manufacturer's name and address, the manufacturer's serial number, the number of persons to be accommodated, and the ABS approval letter. This marking enables ABS surveyors to locate all the necessary information on a module to ensure it meets the requirements of the vessel or installation it is being installed on.
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Subsequently, the manufacturer requests a manufacturer assessment (MA) to confirm that the ABS surveyor has verified compliance with the PDA and to audit the quality control system and manufacturing process. Upon successful completion of the audit, the module is issued an MA certificate, and its product status is updated to "Type Approved."
 
ABS Certification Step 3 – Design Review for Installation Approval
Once the product status of the module has been changed to "Type Approved," it is ready to be deployed for use on a vessel or installation. However, there are specific technical requirements that must be met when installing a portable accommodation module onto a host vessel.

  • Submission of Plans
  • Stability Requirements
  • Structures (Vessels, MODU, etc)
  • Securing to the Deck
  • Stacking Arrangements
  • Electrical Requirements
  • Piping Requirements
  • Fire Fighting Requirements
  • Tonnage
  • ILO (International Labor Organization)
  • Lifesaving Appliances
  • Structural Fire Protection
  • Means of Escape and Safe Passage
 
This information is packaged together and sent to the ABS technical office, where ABS engineers will determine if the proposed location on the vessel is suitable for the module. When the package is approved, stamped drawings are returned to the submitter and to the ABS survey office.
 
ABS Certification Step 4 – Host Survey Onboard
The final step in obtaining ABS certification involves the Host Survey Onboard, where an ABS surveyor checks the installation of the module on the vessel to confirm that it follows the approved drawings submitted in the previous steps. Once the surveyor approves the installation, the module is considered "ABS Certified" and ready for use.

Since modules can remain in service on vessels for several years, the ABS mandates annual surveys to ensure that the module remains compliant with the necessary requirements for maintaining its certification.

This explanation provides a brief overview of the process for obtaining ABS certification for offshore modules. For further information on offshore module, please contact us.

More information about accommodation modulars, offshore accommodation cabins, gallery module, mess module, etc. Please download TLS accommodation modular brochure , TLS ABS approved offshore accommodation module brochure for reference. 

#Portable accommodation modules #Offshore accommodations #ABS certification #Marine safety #Modular construction

Written by Oliver

​Container modular living quarters have emerged as a popular option for those seeking affordable and sustainable housing. These homes are made from repurposed shipping containers, which provide a sturdy and durable structure that can withstand harsh weather conditions and rough handling. The modular design of these living quarters allows for flexibility and versatility, making them an ideal choice for people who need a housing solution that can easily adapt to changing circumstances.
 
A container modular living quarter is essentially a prefabricated housing unit made from shipping containers. The containers are remodeled with electrical, plumbing, heating systems, insulation, and other necessary amenities to create a comfortable living environment. The interior can be customized with a choice of different floor plans, finishes, fixtures, and appliances to suit your preferences.
 
One of the main advantages of container modular living quarters is their affordability. Compared to traditional houses, these homes are cost-effective because they are built using recycled materials and a modular design, which reduces construction and maintenance costs. Additionally, they are environmentally friendly and sustainable, as they use recycled shipping containers and energy-efficient systems and materials that help reduce your carbon footprint and save on utility bills.
 
Customization is another key benefit of container modular living quarters. You can choose from a variety of floor plans, finishes, fixtures, and appliances to create a living space that meets your specific needs and preferences. Moreover, these homes are highly flexible and can be easily relocated or expanded, making them suitable for people who need a temporary or semi-permanent housing solution.
 
When choosing a container modular living area, you should consider factors such as size, location, customization options, quality, and cost. The design scheme of these homes can vary widely, with options such as open living spaces, outdoor areas, energy-saving features, and modern decor. The possibilities are endless, and you can create a home that truly reflects your personal style.
 
In summary, container modular living quarters are an innovative and eco-friendly housing solution that offers many benefits. They are affordable, sustainable, customisable, flexible, and stylish. Whether you're looking for a starter home, a vacation home, or a home that can grow with your changing needs, container modular living quarters could be the perfect choice for you.
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Written by Oliver