Modular Housing

Building construction

Prepared by:

Yogiraj bhandari

What, exactly, is a modular home?

• A modular home is one that is built indoors in a factory-like setting. The finished products are covered and transported to their new locations, where they are assembled by a builder.

• A modular home is not a mobile home; it is simply a home that is built off-site, as opposed to on-site. These homes are often called factory-built, system-built or prefab (short for prefabricated) homes.

How do modular house differ from house built on site?

• Modular homes are built indoors, they can be completed in a matter of a few weeks, as opposed to months.

• They don’t see the typical on-site delays caused predominantly by the weather.

• Modular homes must conform to specific rules, guidelines and building codes that often surpass those of traditional on-site homes.

•Excavation and foundation

•Factory construction

•Shipping and setting

•Finishing

Construction process• Modular components are typically constructed indoors

on assembly lines.• The entire process of modular construction places significance

on the design stage. • This is where practices such as Design for Manufacture and

Assembly (DMA) are used to ensure that assembly tolerances are controlled throughout manufacture and assembly on site.

• The use of advanced CAD systems, 3D printing and manufacturing control systems are important for modular construction to be successful. This is quite unlike on-site construction where the tradesman can often make the part to suit any particular installation.

• Modules' construction may take as little as ten days but more often one to three months.

Materials • The materials used in modular homes are the

same as site constructed homes.• Wood-frame floors, walls and roof are the

most typical. Some modular homes include brick or stone exteriors, granite counters and steeply pitched roofs.

shipping

setting

•A factory-built home starts out as sections that have been built in a climate-controlled area.

•The finished sections are transported to the building site and then assembled with cranes.

•This process resembles a child building with Lego blocks.

•Modular homes cannot be moved after they have been placed and set on their foundations.

Finishing and assembling

• Modular homes offer hundreds of personalized features that include (but are not limited to) ceramic floors, solid-surface countertops, various cabinet styles and wood species, exterior finishes, plumbing fixtures etc.

Are modular houses are more expensive than those built on site?

• Prefab homes can typically save you quite a bit of money. Because they are constructed in a factory, they can be built fairly quickly in a matter of weeks, as opposed to months because there are no weather delays.

• Furthermore, all inspections are performed at the factory during each phase of construction by a third-party inspector, and are completed before the homes are transported to their permanent locations.

Advantages • Environment friendly process: Modular construction reduces waste and site disturbance

compared to site-built structures.• Indoor construction: Assembly is independent of weather, which can increase work

efficiency and avoids damaged building material.• Speed of construction: Modular construction allows for the building and the site work to

be completed simultaneously. This saves lots of time and due to that we get faster return of our investment.

• Flexibility: One can continually add to a modular building, including creating

high rises.

• Ability to service remote locations: Particularly in countries in which potential markets may be located

far from industrial centers, such as Australia, there can be much higher costs to build a site-built house in a remote area or an area experiencing a construction boom such as mining towns.

• Low waste: With the same plans being constantly built, the manufacturer has

records of exactly what quantity of materials are needed for a given job. While waste from a site-built dwelling may typically fill several large dumpsters, construction of a modular dwelling generates much less waste. Waste can be recycled.

Where modular housing is being used?

5%6%

20%

26%

42%

42% Education26% Offices20% Student housing 6% Retail & hospitality 5% Other

Some examples

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