What Is Modular Construction? An Expert Guide

prefabricated building

Written By: MPH Modular Building Specialists | Last Updated: November 2023

Interested in learning more about modular construction? We’ve been in the modular construction industry since 1972, so we asked our experts to put together this comprehensive guide to what exactly modular construction is in 2023.

Modular construction is becoming increasingly popular across both the residential and commercial spaces, with an array of advantages. But what exactly is modular construction? In this blog, we’ll explore what defines modular construction and how it’s shaping the modern construction space. We’ll look into the rising popularity of modular techniques, the advantages of using this form of construction, and the potential for the industry going forward.

Whether you are a builder, a designer, or a homeowner, there is a lot to learn about modular construction. Read on to find out what makes it different from traditional methods and what a sustainable future looks like with modular construction.

What Is Modular Construction?

Modular construction is the process of constructing a building offsite in modules. These buildings consist of module sections designed as a whole which are then reconstructed to make a modular building. The modules are usually manufactured offsite, delivered to their intended location, and re-installed together.

What is a Modular Building?

A modular building is a type of construction method that typically uses separate components or modules that are pre-manufactured off-site to create a somewhat larger structure. These components can range from simple structures such as cabins and sheds, to large, complex building projects such as multi-storey offices and hotels.

Modular buildings provide numerous advantages over traditional construction, such as increased speed of construction, reduced cost, versatility, and environmental sustainability. With the majority of the building process completed away from the building site, it also reduces disruption to surrounding areas.

When Was Modular Construction Invented?

The first documented prefabricated home was created in the 1830s by London carpenter John Manning for his son, who was moving from England to Australia. Manning built a prefabricated house in pieces, then shipped it to the Land Down Under for easy assembly.

Since then, the rise of the world’s ever-increasing interest in sustainability and eco-friendly products and processes has meant that modular construction shows no signs of slowing down.

Types of Modular Construction

One popular method of modular construction is the panel system, in which pre-fabricated panels are used to construct the building envelope. Each panel contains all of the necessary components for that area of the building, including insulation, wiring, water-proofing and cladding. This can lead to huge savings in terms of parts and labour, allowing the project to be completed more quickly with less disruption to the environment.

Another common method is the modular frame. This method uses pre-fabricated frames made from timber, metal or concrete, which are then assembled on-site in a quick and efficient manner. This reduces the need for complex scaffolding and large teams of builders, leading to faster completion times and reduced costs.

It’s also possible to combine traditional construction methods with modular approaches. This means that parts of the building can be constructed in an efficient manner with prefabricated components, while other parts can still be built using traditional methods. This gives you the flexibility to use modular construction for certain parts of the project, while still having the option to use more traditional methods for others.

What Is Modular Construction, Modular Building Installation Technique

The Benefits of Modular Construction

  • Cost-Effective

    Modular construction is highly cost-effective, mainly because it can be completed on a massive scale within large workshops or factories. The larger trained workforce can produce more volume faster than on-site construction crews, which delivers a lower cost. This efficiency and labour cost savings can save money on the project.

  • Sustainable

    As a sustainable form of construction, modular buildings offer eco-friendly construction. By reconfiguring used buildings, we can breathe new life into existing structures, preserving the embodied energy from the initial manufacturing phase and significantly reducing the use of materials. It’s no secret that global warming and climate change pose huge problems and threats to our planet. With that said, many of us are looking for ways to help do our bit.

  • Efficient

    A revolution for the construction sector, modular construction has changed the industry by reducing build times, lowering labour and materials costs and improving sustainability. For instance, modules are designed to be dismantled, relocated or recycled at any stage during their lifespan; this approach is integral to the build process, removing the requirement for demolition.

  • Lifespan

    Modular construction can provide a building that lasts and lasts, with a lifespan of at least 50 years. Your choice of materials, cladding, base installation and other factors can increase this. The ultimate in flexible construction, modular buildings can also be repurposed and reused.

  • Reusable

    Due to their design of being manufactured off-site, transported in modular parts and then repeatedly reconstructed, modular builds are reusable and flexible. Modular units can be continuously moved from site to site as required without the need to pay for an entirely new building every time.

The Challenges of Modular Construction

There are a number of challenges that arise when using modular construction, however these can often be addressed through careful design and specification.

The main challenge involves the integrating of the modules into the existing fabric of the site, including the existing terrain and services. There can be additional costs due to the need for a crane when constructing a steel framed building and there may be transportation restrictions for larger modules.

Further challenges can include a greater design complexity to ensure the overall structure meets the relevant Building Regulations. It is important that proper planning is undertaken to ensure a successful project, as the costs associated with delays, redesigns, and rework can be considerable.

What Materials Are Used In Modular Construction?

Usually constructed from steel or wood, most modular manufacturing includes timber, steel, concrete and cement.

Timber is popular for panels, cladding, fixtures, and sometimes modular frames. Steel is often used as stronger reinforcement for structural components. However, steel and metal can also be used for moulded panels or industrial styling.

Concrete and cement are the base elements used for foundations and footings. However, units can be constructed using steel-reinforced concrete and cement sections too.

How Is A Modular Building Installed?

Believe it or not, there are probably more steps than you think when it comes to installing a modular building:

  • 1

    Each section of the modular building arrives on-site.

  • 2

    The first modular building section is prepped for the crane – in this step, the protective transport sheets are removed, and the transport vehicle is moved into position.

  • 3
    The crane is now ready to lift the modular building to its designated location.
  • 4
    Pre-laid foundation pads will have already been installed by this step, and so the crane places the modular building onto them.
  • 5
    The loading process is repeated, and the next section is transported and placed onto the foundation pads.
  • 6
    This cycle continues until all of the sections have been transported and placed.
  • 7
    Once the above steps have been completed and the crane has done its job, it’s time to start the installation of the building. This is where all the necessary internal work, final touches and decorating begins.
  • 8
    The modular building has been effectively installed.

Which Industries Use Modular Construction?

While just about any industry can benefit from modular construction, there are some sectors where one can improve processes, spacing, and cost issues. These include the public sector and commercial buildings for the private sector.

Modular Construction For Healthcare

The main benefit of modular buildings in healthcare settings is the speed at which they can be built. The scale and pace at which COVID-19 spread was a huge shock for many of us, and hospitals quickly felt the strain.

Modular buildings can be erected quickly and efficiently on site. Because it eliminates the frustrations of traditional on-site construction, this approach offers an unrivalled build time from order to completion and ensures performance to meet guaranteed deadlines.

Modular Construction For Education Sectors

Any disruption must be kept to an absolute minimum in an educational setting to facilitate a healthy learning environment.

Since modular buildings are constructed off-site, there’s less disruption on-site, and the whole process is much safer for staff and students. Temporary modular classrooms are a safe and ideal solution for expansion with minimum on-site work.

Modular Construction For Offices

As businesses grow, often, it’s not feasible to use traditional building methods for expanding existing office space.

Modular office buildings offer the versatility of use for expansion and change as organisations develop. Facilities can be extended or relocated with impressive project timescales and cost savings.

Modular Construction Examples

Examples of modular construction include classrooms, hospitals, offices and more. See project examples completed across the UK in our Case Studies

The Future Of Modular Construction

Ultimately, the future is bright for modular construction. As the world looks to move to a much more sustainable future, the concept of a building that can be transported and reused in a different location provides eco-friendly benefits such as waste reduction that are difficult to ignore. The ease-of-build and cost-saving nature of this type of construction means the chances of the industry slowing down are slim.

If you’d like to learn more about our bespoke modular buildings for various industries, contact us today for a chat with our friendly team of experts.