Short answer
Focus on material choices (recycled/biological) and design for disassembly to achieve higher circularity in homes without increasing life cycle costs.
- Field
- Sustainability
- Source
- Resources Conservation and Recycling (2020)
- Method
- Design-oriented research
- Evidence
- Strong effect
Implementing circular design principles in residential construction, such as using recycled materials and designing for disassembly, can significantly increase a home's circularity level without incurring additional life cycle costs. This sustainability research insight is drawn from a 2020 study published in Resources Conservation and Recycling. Using Design-oriented research, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Focus on material choices (recycled/biological) and design for disassembly to achieve higher circularity in homes without increasing life cycle costs.
Doubling Circularity in Homes Without Increasing Life Cycle Costs
Implementing circular design principles in residential construction, such as using recycled materials and designing for disassembly, can significantly increase a home's circularity level without incurring additional life cycle costs.
Resources Conservation and Recycling · 2020
Key Findings
- 01It is possible to double the LoC of a one-family house (from 0.20 to 0.41) without increasing its LCC.
- 02Achieving this increased circularity primarily involves substituting virgin materials with recycled or biological alternatives and using easily disassembled building products.
- 03Further increases in circularity beyond LoC 0.41 lead to a sharp rise in product costs and thus LCC, making it less economically viable.
Application
Design takeaway
Focus on material choices (recycled/biological) and design for disassembly to achieve higher circularity in homes without increasing life cycle costs.
How to apply
When designing new homes or renovating existing ones, evaluate opportunities to incorporate recycled or bio-based materials and design building components for easy separation and reuse at the end of their service life.
Project actions
- 01When selecting materials, research the availability and cost of recycled or bio-based alternatives.
- 02Consider modular construction techniques or standardized connection methods to facilitate disassembly.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Directly links circularity metrics to economic outcomes.
- +Provides actionable design strategies.
Limitations
The specific cost savings and material availability may vary significantly based on geographic location and market conditions.
Reliability & validity
The study's validity is supported by its design-oriented approach, directly manipulating design parameters. Reliability would depend on the consistency of LCC calculation methods and material cost data.
Think critically
At what point does the pursuit of circularity become economically prohibitive, and what factors influence this threshold?
Design Principles
"Prioritize cost-effective circularity strategies by focusing on material substitution and design for disassembly."
This research challenges the perception that circularity is inherently more expensive. It provides a practical roadmap for designers and developers to integrate sustainability into building projects, demonstrating that initial investments in recycled materials and modular design can lead to long-term cost parity and environmental benefits.
What This Means for Your Design
You can make houses more environmentally friendly by using recycled stuff and making them easy to take apart, and it won't cost more over the whole time the house is used.
How to use in your project
- 1.Reference this study when discussing the economic viability of sustainable design choices in your design project.
Add to My Project
Quick Cite
Paragraph starter
This research indicates that increasing the circularity of residential buildings through material substitution (e.g., recycled or biological materials) and designing for disassembly can be achieved without increasing life cycle costs, up to a LoC of approximately 0.41. This suggests that designers can prioritize these strategies to meet sustainability goals while remaining economically competitive.
Source
Resources Conservation and Recycling
Exploring the relationship between the level of circularity and the life cycle costs of a one-family house
journal · 2020
View sourceQuestions About This Research
- What does the research say about doubling circularity in homes without increasing life cycle costs?
- Focus on material choices (recycled/biological) and design for disassembly to achieve higher circularity in homes without increasing life cycle costs. Evidence: Resources Conservation and Recycling (2020).
- Why does "Doubling Circularity in Homes Without Increasing Life Cycle Costs" matter for design?
- This research challenges the perception that circularity is inherently more expensive. It provides a practical roadmap for designers and developers to integrate sustainability into building projects, demonstrating that initial investments in recycled materials and modular design can lead to long-term cost parity and environmental benefits.
- How can designers apply this research?
- Focus on material choices (recycled/biological) and design for disassembly to achieve higher circularity in homes without increasing life cycle costs.
- What were the main findings?
- It is possible to double the LoC of a one-family house (from 0.20 to 0.41) without increasing its LCC.. Achieving this increased circularity primarily involves substituting virgin materials with recycled or biological alternatives and using easily disassembled building products.. Further increases in circularity beyond LoC 0.41 lead to a sharp rise in product costs and thus LCC, making it less economically viable.
- What research method was used?
- Design-oriented research.
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2020 journal from Resources Conservation and Recycling.
- What should I do differently in my next project?
- When designing new homes or renovating existing ones, evaluate opportunities to incorporate recycled or bio-based materials and design building components for easy separation and reuse at the end of their service life.
- What are the limitations?
- The study focuses on a single-family house; findings may vary for different building types. The economic viability of higher circularity levels beyond a certain point was not explored in depth.