Why off-site could boost the construction sector

Although the UK construction industry is finally starting to grow and evolve after years of stagnation, it still lags behind some equivalent economies when it comes to embracing the latest modern methods of construction.

One of these is off-site construction, to which there is resistance in some sectors despite its many proven benefits.

But with contractors increasingly looking for ways to maximise efficiency and minimise costs, off-site’s advantages and reduced risks compared to site-based construction should make it an attractive prospect.

According to government figures, the off-site construction sector currently accounts for 7% of total construction output in the UK, and is worth more than £1.5Bn to the economy.

While not suitable for every project, when properly planned and managed off-site construction can be an effective solution for a variety of construction types.

Many of the challenges of the off-site approach can be overcome by the relationships between the parties and especially the way they communicate.

Because the fabrication is taking place elsewhere and is therefore out of the control of the on-site team, it is essential all parties are in constant communication with each other on all aspects of the project, and that expectations are managed and concerns dealt with promptly.

The risk is increased if this relationship is not developed, or if it breaks down during the project.

One of the main barriers to increased take-up is the perception that off-site construction is more expensive or has hidden costs.

While this may be true in some cases in the short-term, especially when the costs of extra transport are factored in, often the whole-life cost of the project is lower due to increased quality and reduced snagging and defects.

Costs can be reduced further if individual pieces or modules are manufactured en masse off-site for use in a range of projects.

What’s more, specialist modules that would be difficult and expensive to construct on-site can be made more easily and cost-effectively elsewhere.

Another perception is that off-site construction requires a longer lead-in time. If expectations are managed properly and the supply chain is engaged early enough this should not be a problem, but if not it could delay the start of the project on site.

On the other hand, project completion times could actually be reduced, and significant savings made, if off-site and on-site processes are started in parallel. Less time on site also means savings in labour costs and reduced disruption to the client and local community, something particularly important if the site is in a residential area.

However, the benefits of off-site are not just financial. With construction taking place in a controlled environment, risks can be significantly reduced. The quality control and assurance processes of these facilities should result in a more consistent product with fewer defects, and therefore fewer issues after installation.

Off-site construction is also a sustainable and environmentally friendly method of building that brings benefits such as reduced waste and increased energy efficiency.

Investing in an off-site production facility can have many positive effects. The plant can be located where building, land and skilled labour costs are cheaper, bringing cost savings in the long term.

It also creates secure jobs for local people, boosting the economy, and provides a potential base from which to offer construction training opportunities to help plug the industry’s skills gap.

Richard Selby is Director of Pro Steel Engineering Ltd.

 

 

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