Building Material Reuse: Going Beyond Recycling with LEED v5

LEED v5 puts greater emphasis on circularity, waste prevention, and extending the useful life of building materials. While recycling keeps materials out of landfills, reuse goes further by preserving the energy, resources, and embodied carbon already invested in a product. Instead of cutting, crushing, or melting valuable building materials for recycling, reuse keeps them intact and working in another project.

repurposedMATERIALS helps builders, contractors, and construction companies put material reuse into practice. By connecting projects with used and reclaimed building materials that still have useful life remaining, repurposedMATERIALS can help project teams source materials for reuse rather than relying exclusively on newly manufactured products. From structural steel and lumber to industrial materials and other construction products, finding a second-life application can support LEED v5 material reuse, circularity, waste reduction, and embodied-carbon goals.

By choosing reuse before recycling, construction teams can conserve resources, reduce waste, and keep valuable building materials in productive use for another generation.

Why Building Material Reuse Matters

Building material reuse gives construction products another useful life without requiring the resources and energy needed to manufacture an entirely new product. When materials remain intact and can be used again, projects can reduce waste while preserving the value already built into those materials.

This approach is especially relevant as the construction industry places greater emphasis on circularity and embodied carbon. LEED v5 expands the focus on reducing waste, encouraging reuse, and protecting valuable resources as part of its Materials and Resources strategies.

For builders and contractors, reuse can start with a simple question: Can an existing material meet the needs of this project before a new material is purchased?

Structural steel, lumber, insulation, flooring, steel decking, and many other construction and industrial materials may have useful life remaining long after their original application ends. Finding another use for these materials keeps them in circulation and can reduce the demand for newly manufactured products.

How Material Reuse Supports LEED v5 Goals

LEED v5 places greater emphasis on the relationship between material choices, waste prevention, circularity, and embodied carbon. Its Materials and Resources category encourages project teams to rethink how materials are sourced, used, and managed at the end of their useful life.

Material reuse can support these goals by keeping products in use rather than sending them to a landfill or processing them for recycling. Reuse can also help preserve the resources and manufacturing impacts already invested in a product. USGBC identifies material and building reuse as an important strategy for reducing embodied carbon because reusing materials can avoid the need for new material production.

For project teams pursuing LEED certification, the specific contribution of reused materials depends on the project’s rating system, documentation, and applicable LEED requirements. However, the broader principle is straightforward: keeping useful building materials in circulation can be better than discarding them and starting over.

Put Building Material Reuse Into Practice

Material reuse does not have to begin with a complicated process. It can start by looking for available materials that can meet a project’s needs before purchasing new products.

repurposedMATERIALS helps builders, contractors, and construction companies find used, surplus, and reclaimed materials that still have useful life remaining. By giving these materials another application, project teams can put the principles of reuse and circularity into practice while finding practical alternatives to newly manufactured products.

Before recycling a useful building material, consider whether it can be reused. The best material may already exist.