Advantages and disadvantages of Precrafted Housing

Advantages and disadvantages of Precrafted Housing

August 24, 2018

Here are the summary of advantages and disadvantages of Precrafted Housing:

Advantages of Precrafted housing

  1. Self-supporting ready-made components are used, so the need for formwork, shuttering and scaffolding is greatly reduced.
  2. Construction time is reduced and buildings are completed sooner, allowing an earlier return of the capital invested.
  3. On-site construction and congestion is minimized.
  4. Quality control can be easier in a factory assembly line setting than a construction site setting.
  5. Prefabrication can be located where skilled labor is more readily available and costs of labor, power, materials, space and overheads are lower.
  6. Time spent in bad weather or hazardous environments at the construction site is minimized.
  7. Less waste may occur
  8. Advanced materials such as sandwich-structured composite can be easily used, improving thermal and sound insulation and air tightness

Disadvantages of Precrafted housing

  1. Careful handling of prefabricated components such as concrete panels or steel and glass panels is required.
  2. Attention has to be paid to the strength and corrosion-resistance of the joining of prefabricated sections to avoid failure of the joint.
  3. Similarly, leaks can form at joints in prefabricated components.
  4. Transportation costs may be higher for voluminous prefabricated sections than for the materials of which they are made, which can often be packed more efficiently.
  5. Large prefabricated sections require heavy-duty cranes and precision measurement and handling to place in position.
  6. Larger groups of buildings from the same type of prefabricated elements tend to look drab and monotonous.
  7. Local jobs may be lost, if the work done to fabricate the components being located in a place far away from the place of construction. This means that there are less locals working on any construction project at any time, because fabrication is outsourced.

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