Unlike in the world of human interactions, popularity is equated with quality in the world of technology. The AEC industry is firmly supported by the technological advances of our age, and prefabricated housing is becoming ever more popular. The development of prefabricated or modular construction in the housing industry is an affordable and reliable solution to the challenge of quality housing worldwide. Prefabricated housing, sometimes called prefab homes, prefabs or modular homes, are fabricated off site in sections, from just bathrooms to whole floors, that can be transported, placed or constructed to form housing units. Prefabricated housing can be independent dwelling units for individual families (homes ) or single units which have been stacked on top of one another to form multi-storey housing or apartment blocks. How useful prefabrication is from the housing sector, why it is so and that can deliver services key to accurate prefabrication layout are some of the things we’ll explore.
So, what exactly are prefabricated buildings?
Prefab buildings may be constructed from components (such as panels), modules (in the case of whole modular houses, houses on wheels) or segments (parts of manufactured homes) constructed off site and transferred to the site when they are ready to be installed. A group of technical experts attach the different services to the building layout. These can include double-storey homes and foreclosed houses. Modular or prefabricated homes can be created in segments and then transported on site to be put together as part of the construction process or installed. Whole rooms, such as bathroom kitchens or pods, can be created in a factory setting as prefabricated units. Steel frames can be erected on site to’slot’ in the prefabricated units or entire concrete foundations can be put to the floor in readiness for your new house to arrive. Financing, construction and appraisals of those homes are performed in the same way as for regular homes. Prefabricated houses may also be assembled on manufacturing assembly lines, which are moved in complete sections or flooring to the site, where these complete home units are connected floor by floor and also connected to the location’s main water supply, sewage system and electrical lines.
They are normally constructed in factories that are some distance away from the actual housing site, indeed they might be in another country. These purpose-designed factories effectively consist of assembly line environments, where different components and trades come together at various phases of the assembly line to bring the many components to the building. Starting with floors, walls and ceilings, the construction moves along for internal fixtures and MEP elements like piping, plumbing, boilers, bathrooms and whole kitchen fittings, before being moved across to finishing areas such as glazing, doors, electrical fittings and even bathroom tiling. Once the house is assembled, it moves through closing QA checks before being handed over to logistics teams for transportation to its permanent site.
Plumbing and electrical lines are connected to the city’s water and electrical connections and the prefabricated sections are sealed. Prefabricated homes can have lots of rooms and also be of different designs. These homes can be put on a permanent foundation, blending in seamlessly with other frequently constructed houses. Repairs on the houses are conducted by the real estate company involved in its sale.
During the settling-in period of time, a prefabricated home’settles’ in to the location, after which some cracking of the drywall could occur. Appliances which were incorrectly installed may be repaired by changing the wiring or pipes, and the ventilation, heating, cooling, plumbing and electrical systems can be properly installed by a set-up crew.
Among the driving forces behind a successfully constructed and reliably functioning prefabricated home is the effectiveness of its design. DfMA is a design process that groups the design for fabrication, or the ease with which parts will be made for a product, with the design for assembly, which refers to the ease with which components will be assembled. DfMA helps the design team reduce manufacturing and assembly costs by identifying, analysing and removing waste and inefficiency from a product’s design. DfMA modelling and drawing is fast becoming synonymous with design for prefabrication.
Construction drawings, or shop drawings, graphically illustrate the details, specifications and data of a prefabricated design, contain information about the MEP (M&E) systems and include the specifics of prefabricated components. BIM technology a part of the larger virtual design and construction (VDC) procedure which helps find solutions to challenges faced by subcontractors and designers prior to building prefabricated components in the factory.
Outsourced firms specialise in delivering models and drawings quickly, using the most recent applications, such as Autodesk 3ds Max, Autodesk Revit, Autodesk Navisworks and others, and by employing well-qualified experts. Modular construction drawings provided by these CAD drafting companies are typically accurate and error-free.
Benefits of Prefabrication
Faster completion of projects, therefore reducing costs
Diverse uses – can be used to create high-rises, single-storey structure, villas, townships, as well as to create ceiling slabs, terrace blocks, wall panels, columns, staircases, bathrooms, light fixtures, etc..
Customisation – specific property specifications can be accommodated easily, leading to reduced expenses
Durability – prefabrication in the structural feature of construction bolsters structural strength, sometimes helping to withstand earthquakes and other natural disasters. Concrete panels are created with elements of high quality in a controlled factory environment and therefore last longer.
Well suited to specific sectors which have repetitive design elements, such as student housing, educational institutions, healthcare facilities, prisons, police stations and senior housing.
Increased and more efficient quality management in factory settings
Safer and less stressful working environment for labourers in a factory than onsite, especially in crowded areas, as onsite dangers are eliminated for employees
Less on-site space is required to assembly elements which have already been assembled off site
Less waste is generated during construction, because prefabricated component waste is disposed of at the factory and not transported to the site
Competitive border – enables flexibility in design decisions until the nth moment
Saves space – home can be built in cramped spaces in tight schedules and take up less space
Modular structure in the housing market has expanded its scope for builders and buyers. Buyers have more options to choose from and builders have more build options for construction, changing the general construction landscape. Projects see MEP contractors use an increasing number of modular building plans during collaboration. Prefabricated construction is more affordable and more green, since such buildings are better sealed against drafts and there is improved quality control systems in factories, thus leading to enhanced insulation and improved energy efficiency.
The various advantages of using prefabricated housing can only be appreciated when the DfMA modelling and drawings are perfect. Since this demands considerable time and resources, an increasing number of Western firms are looking overseas for their prefabrication design solutions.
Benefits of Outsourcing Prefab Design Services
Cost reduction, because skilled labour and expenditure on resources abroad is significantly less expensive
Utilization of advanced tools and technologies, such as AutoCAD and Revit, by seasoned and well-qualified human resources
Standardisation of drawings across jobs, so that MEP installations and other services are made simpler
3D axonometric drawings of the entire construction project are created, showing methods and means by which individual subcontractor components or systems can be placed in the project
Skilled draftsmen and other technical professionals work faster, maintain accuracy, provide complete audit trails with drawing references, approval records
Faster turnaround time, since overseas companies employ ready and dedicated teams of trained personnel capable of working to continuously changing specifications, helping to complete jobs on schedule
Increased flexibility, as outsourcing permits Western firms to pick and choose services according to need. The flexibility thus created helps expand the company.
Outsourcing prefabrication design services is thus an increasingly popular option, and this strategy will save time, improve productivity, ensure higher security levels and boost profits. Using Revit, AutoCAD and other software to make modular construction drawings and models helps provide high-quality prefabricated design support for Western companies in the business.