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Facing natural disasters, choose prefabricated houses and small houses

Dec. 26, 2019

China's disaster-resistant housing market and the post-disaster reconstruction market are currently more and more important markets for domestic housing companies. Aiming at such a market, at present, there does not appear to be a housing product specially designed according to demand in China. Many of the houses constructed are copied from the existing housing system. And foreign countries have made special house designs and thoughts on disasters such as fire, flood and wind. I believe that no matter which custom prefab house company makes the layout in these markets first, it will greet a rich harvest in the future.

Now that natural disasters are becoming more common—from forest fires to floods and hurricanes—we can’t help but think about how prefabricated and small homes can play a role in reconstruction.

In the critical period after a natural disaster, whether it is a prefabricated or small house, it is possible to play a huge role in providing the necessary support and temporary or even permanent housing. This is due to a number of factors: their small size, short construction time, building structures that can withstand road transport and crane installation requirements (and thus also resist future natural disasters), and they are often designed and manufactured locally.

Prefab House

Prefab House

Although government-issued mobile homes and trailers are often used in local communities after floods, hurricanes, or wildfires, they often lack the long-term durability and aesthetics of long-term homes and are therefore used exclusively as temporary housing. Although the ideal situation for many people is to return to their original homes after completing the required repairs and inspections, this is not always possible. In these cases, new housing is a viable solution, but time and resources may be scarce and need to be completed immediately.

Prefabricated houses provide a viable alternative to temporary housing for a number of reasons.

Thanks to the prefab houses, which can be prefabricated in the factory, they can be quickly constructed, which means that they can build a house in weeks instead of months (this requires a traditional home) . This shortened period of time may have an inestimable impact on residents, from missing days to school or work to being aware of the psychological expectations of safety and shelter. Moreover, standardized home modular components are more cost-effective than custom new buildings.

Generally, prefabricated houses have many different characteristics that make them resilient to disasters.

They are symmetrical in structure (so that loads such as wind and precipitation are evenly distributed), made of durable materials, lightweight (especially roofs), able to withstand strong winds and earth vibrations, and flexible (to a certain extent), It will not collapse and soil assessments will be performed. Site selection is usually on soil with a solid foundation.

Of course, depending on the possible local disaster, the characteristics of some prefabricated houses need to be emphasized or added.

For example, in prefabricated houses designed for areas prone to wildfires, the materials should also be flame retardant and waterproof, so structures and external elements (such as columns and beams) should be constructed of steel and / or concrete instead of wood. In areas prone to earthquakes, single-story low cost prefabricated house is the safest option and structural connections need to be strengthened.

In the face of future disasters, another major advantage of small houses is the ability to easily move during evacuation or to demolish and relocate if necessary.

In areas that are particularly prone to floods or frequent evacuation, the ability to safely leave the area and maintain your own home is essential.

In the end, small houses and modular prefabricated houses provide safe, disaster-conscious housing space for new homes. Small and prefabricated homes are more cost effective and energy efficient than repairing existing homes or buying new homes. Flexible small and prefabricated houses are designed with three major risks in mind: wind, flood, and fire, and we may start to see more risk considerations in the future.

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