Why Design for Deconstruction Is the Cornerstone of True Circular Construction Practice in the Modern Era

The main goal of circular construction is to ensure that building components are used and reused repeatedly, minimizing the need for excessive resources. Design for deconstruction can help with accomplishing that goal and more.

The Strategy Behind Design for Deconstruction

Design for deconstruction is widely known in the industry as design for disassembly, which aligns with the building method's true purpose. When designing buildings for durability, you should also consider how the structure should be treated at the end of its life.

Ideally, the whole structure can be unzipped and reused rather than demolished. Some projects, like the Wesley House, were deconstructed and designed for reuse. The process was 5% less expensive compared to the conventional demolition estimate.

What Makes up the Design for Deconstruction Model

The process consists of design, deconstruction and organization for later reconstruction.

Intentional Design

Design for deconstruction can involve a variety of design choices. At its core, durable and recyclable materials, such as steel and timber, are essential to keep the building sturdy throughout its useful life. You must ensure that future disassembly is possible and simplified. Modular building is ideal for this, as it uses mechanical fasteners rather than permanent ones, such as welds or cement.

Stripping and Dismantling

Once the building reaches the end of its life, it’s time to strip and dismantle it. Ideally, your builders have created a digital material passport that logs every component that can be reused in future projects. This information can help you determine which materials should be recovered.

Cleanup and Sorting

Getting compact equipment is not just for transporting the rubble from demolition projects. It can also be used for site cleanup and post-deconstruction sorting. Aside from efficiently removing the debris, rocks and other materials, you can clear the space to make way for new developments.

How Deconstruction Contributes to Sustainable Construction

Design for deconstruction can serve as a solid cornerstone for integrating the circular economy into the modern construction landscape.

Prevents Resources From Going to Waste

Construction projects are notorious for generating so much waste that it often ends up in landfills and beyond. By creating a cycle that recovers and reuses those materials in other projects, you can achieve minimal to no waste in the long run. Reusing high-value materials while conserving raw resources for other projects can be beneficial.

Promotes Material Recovery and Reuse

If you’ve invested many funds in high-value materials for projects, you want to get your money’s worth. Material recovery and reuse maintain the physical integrity and value of a building’s structural components. With recycled materials, every 1,000 tons generates 1.17 jobs and further promotes the principles of sustainable construction.

Minimizes Carbon Footprints

Deconstruction can help minimize greenhouse gas emissions. A study on building energy retrofit technology found that avoiding 50% of construction and demolition waste can reduce carbon emissions by 12.71%. You can also lower emissions by skipping the manufacturing of raw materials.

Achieve Circular Construction With Deconstruction

Design for deconstruction can be an effective way to extend the life cycle of building components rather than sending them to landfills. Supporting and adopting these methods can help your team champion sustainability within the construction industry.