Short answer
When designing for circularity, consider how your chosen strategy will be evaluated by current LCA standards, as this can significantly affect the reported environmental benefits. Upcycling may currently offer a more readily quantifiable advantage.
- Field
- Resource Management
- Source
- IOP Conference Series Earth and Environmental Science (2019)
- Method
- Comparative Life Cycle Assessment (LCA)
- Evidence
- Moderate effect
Current Life Cycle Assessment (LCA) standards, particularly EN 15804/15978, credit systems that *use* recycled materials more than those that *provide* them, making upcycling appear more environmentally beneficial than design for disassembly in certain building contexts. This resource management research insight is drawn from a 2019 study published in IOP Conference Series Earth and Environmental Science. Using Comparative life cycle assessment (lca), researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing for circularity, consider how your chosen strategy will be evaluated by current LCA standards, as this can significantly affect the reported environmental benefits. Upcycling may currently offer a more readily quantifiable advantage.
Circular Building Design: Upcycling Outperforms Design for Disassembly Under Current LCA Standards
Current Life Cycle Assessment (LCA) standards, particularly EN 15804/15978, credit systems that *use* recycled materials more than those that *provide* them, making upcycling appear more environmentally beneficial than design for disassembly in certain building contexts.
IOP Conference Series Earth and Environmental Science · 2019
Key Findings
- 01The allocation approach in EN standards merits the use of recycling/reuse over the provision of recyclable/reusable materials.
- 02Upcycling strategies resulted in lower GWP, particularly from the production stage, compared to DfD strategies under the analyzed standards.
- 03DfD strategies did not realize an environmental advantage within the EN standards framework in this study.
- 04Focusing DfD efforts on shorter-lived building elements with high benefit potentials may be more effective than on elements like concrete.
Application
Design takeaway
When designing for circularity, consider how your chosen strategy will be evaluated by current LCA standards, as this can significantly affect the reported environmental benefits. Upcycling may currently offer a more readily quantifiable advantage.
How to apply
When proposing a circular design, conduct an LCA using relevant standards and explicitly discuss how the chosen strategy is credited (or not credited) by the methodology. Consider alternative assessment frameworks if they better reflect the intended benefits of your design.
Project actions
- 01When selecting materials for a sustainable design project, research how their lifecycle impacts are calculated.
- 02If your design involves disassembly for reuse, investigate if current standards adequately capture its environmental value.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Directly compares two prominent circular design strategies.
- +Analyzes the impact of specific, widely used LCA standards.
Limitations
The specific LCA standards used might not be universally applied, and the study focused mainly on GWP, not other environmental impacts. The 'upcycled' and 'DfD' cases were specific examples and might not represent all possibilities.
Reliability & validity
The study's reliability is supported by its use of established LCA standards. Validity is enhanced by comparing two distinct circular strategies, but the specific case studies might limit generalizability.
Think critically
To what extent do current LCA standards accurately reflect the long-term environmental benefits of different circular economy strategies, and how might this bias design decisions?
Design Principles
"Evaluate circular design strategies not only for their inherent material circularity but also for their alignment with current environmental assessment methodologies."
This finding is critical for designers and engineers aiming for sustainable construction. It highlights that the perceived environmental benefits of circular design strategies can be significantly influenced by the metrics and standards used for evaluation, potentially leading to suboptimal design choices if not understood.
What This Means for Your Design
When you try to make buildings more eco-friendly by reusing materials, the way we measure 'eco-friendliness' (like in LCA standards) can make one method look better than another. Right now, using already upcycled stuff seems to get more credit than designing a building so its parts can be easily taken apart and reused later.
How to use in your project
- 1.Use this research to justify the selection of upcycling over design for disassembly for a specific project, or to critically analyze the limitations of current LCA standards in your design evaluation.
Add to My Project
Quick Cite
Paragraph starter
This research highlights that current Life Cycle Assessment (LCA) standards, such as EN 15804/15978, can influence the perceived environmental benefits of circular design strategies. The study found that upcycling strategies often result in lower Global Warming Potential (GWP) compared to Design for Disassembly (DfD) under these standards, due to how the standards credit the *use* of recycled materials over the *provision* of materials for reuse. This suggests that designers should be mindful of these assessment frameworks when aiming to demonstrate sustainability.
Source
IOP Conference Series Earth and Environmental Science
Upcycling and Design for Disassembly – LCA of buildings employing circular design strategies
journal · 2019
View sourceQuestions About This Research
- What does the research say about circular building design: upcycling outperforms design for disassembly under current lca standards?
- When designing for circularity, consider how your chosen strategy will be evaluated by current LCA standards, as this can significantly affect the reported environmental benefits. Upcycling may currently offer a more readily quantifiable advantage. Evidence: IOP Conference Series Earth and Environmental Science (2019).
- Why does "Circular Building Design: Upcycling Outperforms Design for Disassembly Under Current LCA Standards" matter for design?
- This finding is critical for designers and engineers aiming for sustainable construction. It highlights that the perceived environmental benefits of circular design strategies can be significantly influenced by the metrics and standards used for evaluation, potentially leading to suboptimal design choices if not understood.
- How can designers apply this research?
- When designing for circularity, consider how your chosen strategy will be evaluated by current LCA standards, as this can significantly affect the reported environmental benefits. Upcycling may currently offer a more readily quantifiable advantage.
- What were the main findings?
- The allocation approach in EN standards merits the use of recycling/reuse over the provision of recyclable/reusable materials.. Upcycling strategies resulted in lower GWP, particularly from the production stage, compared to DfD strategies under the analyzed standards.. DfD strategies did not realize an environmental advantage within the EN standards framework in this study.. Focusing DfD efforts on shorter-lived building elements with high benefit potentials may be more effective than on elements like concrete.
- What research method was used?
- Comparative Life Cycle Assessment (LCA).
- How strong is the evidence?
- Evidence strength is rated Moderate effect, based on a 2019 journal from IOP Conference Series Earth and Environmental Science.
- What should I do differently in my next project?
- When proposing a circular design, conduct an LCA using relevant standards and explicitly discuss how the chosen strategy is credited (or not credited) by the methodology. Consider alternative assessment frameworks if they better reflect the intended benefits of your design.
- What are the limitations?
- The study's findings are specific to the EN 15804/15978 standards and the two case studies presented; results may vary with different standards or building typologies. The focus was primarily on GWP.