Life-Cycle Assessment and Embodied Carbon
Life-Cycle Assessment (LCA) in construction technology is a systematic process for evaluating the environmental impacts of a building or material throughout its entire lifespan—from raw material extraction to demolition. Embodied carbon refers to the total greenhouse gas emissions generated during material production, transportation, and construction. By integrating LCA and embodied carbon analysis, the construction industry can identify opportunities to reduce environmental impact, enhance sustainability, and make informed decisions about materials and building methods.
Life-Cycle Assessment and Embodied Carbon
Life-Cycle Assessment (LCA) in construction technology is a systematic process for evaluating the environmental impacts of a building or material throughout its entire lifespan—from raw material extraction to demolition. Embodied carbon refers to the total greenhouse gas emissions generated during material production, transportation, and construction. By integrating LCA and embodied carbon analysis, the construction industry can identify opportunities to reduce environmental impact, enhance sustainability, and make informed decisions about materials and building methods.
💡 Key Takeaways
- Define life-cycle assessment (LCA) and its purpose in quantifying environmental impacts from cradle to grave.
- Explain embodied carbon—the upfront emissions from materials and manufacturing—and why it matters for products and buildings.
- Identify common stages and hotspots in an LCA (materials, manufacturing, transport, use, end-of-life) and practical strategies to reduce embodied carbon.
- Learn how to interpret basic LCA results (functional unit, system boundaries, and CO2e metrics) and recognize common limitations.
❓ Frequently Asked Questions
What is Life-Cycle Assessment (LCA)?
A standardized method to quantify the environmental impacts of a product or system across its entire life cycle—from raw materials and manufacture to use and end-of-life.
What does 'embodied carbon' mean?
The greenhouse gas emissions associated with building materials and production processes used to create a product, before it is in use.
What is a functional unit in LCA?
A reference unit that defines the product’s function to enable fair comparisons (for example, one unit of service or one square meter of floor area).
What are the main phases of an LCA?
Goal and scope definition, inventory analysis, impact assessment, and interpretation.