Life Cycle Assessment Task

Guides, Analysis, Report

As the construction industry continues to grapple with the urgent need for more sustainable practices, tools like life cycle assessment (LCA) have become increasingly crucial. SOFiSTiK, a leading structural analysis and design software, has recognised this importance and introduced the LCA Task in its 2025 release. In this comprehensive blog post, we’ll dive deep into how you can leverage this powerful feature to optimise the environmental impact of your building projects.

Understanding the LCA Task in SOFiSTiK

The LCA Task in SOFiSTiK is a game-changing tool that allows you to assess the global warming potential (GWP) of your building designs based on the materials and masses used. By integrating this task into your SOFiSTiK FEA model, you can gain valuable insights into the environmental impact of your project, empowering you to make informed decisions and drive sustainable design.

In this tutorial, we’ll walk through a step-by-step example using a small model consisting of a two-story building with concrete slabs, columns, and walls, as well as a steel frame on the side. Let’s dive in and explore the key features and capabilities of the LCA Task.

Linking Materials with EPD Data

Leveraging the ÖkoBaudat Database

One of the standout features of the LCA Task is its seamless integration with the ÖkoBaudat database, a comprehensive source of Environmental Product Declarations (EPDs) for construction materials. When setting up the task, you have the option to automatically match the materials in your project with the corresponding EPD data from ÖkoBaudat.

This process is incredibly efficient, as the task will automatically populate the relevant GWP values for each material, saving you the time and effort of manually researching and inputting the data. If you prefer to use your own EPD data, you can easily switch to the “Others” option and enter the information manually.

  • Seamless integration with the ÖkoBaudat database for automatic material-EPD matching
  • Ability to manually input EPD data if preferred
  • Convenient and time-saving process for defining material GWP values

Customising Material Data

While the ÖkoBaudat integration is a powerful feature, the LCA Task also allows you to customise the material data as needed. For example, if the pre-matched EPD data does not accurately reflect the specific steel members in your project, you can manually enter the appropriate GWP values.

The task provides flexibility in terms of unit selection, enabling you to adjust the GWP values to match your preferred units. This level of customisation ensures that your LCA analysis accurately reflects the unique characteristics of your building design.

  • Ability to manually adjust GWP values for materials
  • Option to select the desired unit for GWP values
  • Customisation capabilities to ensure accurate representation of project-specific materials

Generating and Interpreting the LCA Report

Once you’ve defined the material GWP values, the LCA Task can generate a comprehensive report detailing the environmental impact of your building design. This report provides a wealth of information, including a breakdown of the GWP contributions by material, life cycle phase, and design element.

Understanding the LCA Report Structure

The LCA report in SOFiSTiK is divided into several key sections:

  • Material Assessment: This table lists all the materials used in the project, their total volume or mass, and the GWP values for each life cycle phase (A1-A3, C3, and optionally, D).
  • Group Assessment: This table categorises the building elements (e.g., columns, walls, slabs) according to the primary groups defined in the model, offering a high-level view of the GWP contributions by element type.
  • Secondary Group Assessment: This table further categorises the building elements based on secondary groups, such as cast groups defined according to DIN 276, offering a more detailed breakdown of the GWP impact.
  • Design Element Assessment: If your model includes design elements, such as a slender wall, this section will provide the GWP information specific to those elements.

By reviewing these tables, you can gain a comprehensive understanding of the environmental impact of your building design, identifying the materials, element types, and construction methods that contribute the most to the overall GWP.

Interpreting the GWP Results

The LCA report presents the GWP values for each material and life cycle phase, allowing you to identify the hotspots and opportunities for improvement. The total GWP sum at the bottom of the report provides a high-level metric for the overall environmental impact of your design.

It’s important to note that the GWP values are expressed in CO2 equivalent, a standard unit for measuring the global warming potential of greenhouse gas emissions. By understanding the relative contributions of different materials and life cycle phases, you can make informed decisions to optimise your design and reduce the environmental footprint of your project.

Exploring Calculation and Grouping Options

The LCA Task in SOFiSTiK offers a range of calculation and grouping options that allow you to customise the analysis and gain deeper insights into the environmental impact of your building design.

Selective Element Inclusion

One of the key options is the ability to include or exclude specific element types in the LCA calculation. For example, you can choose to exclude beam elements from the analysis, which will update the total GWP sum accordingly. This flexibility is beneficial when you want to focus on specific building components or isolate the impact of certain design decisions.

Material and Group Evaluation

The LCA Task also provides options to tailor the evaluation approach. You can choose to focus solely on the material assessment, or you can activate the group assessment and secondary group assessment to gain a more detailed understanding of the GWP contributions by element type and construction groupings.

Additionally, for concrete structures, you have the option to consider the reinforcement or tendons in the LCA calculation. This level of granularity allows you to fine-tune the analysis and identify opportunities for material optimisation.

  • Selective inclusion/exclusion of element types in the LCA calculation
  • Material, group, and secondary group assessment options
  • Ability to consider reinforcement or tendons in concrete structures

Exporting LCA Results to Excel

The LCA Task in SOFiSTiK provides seamless integration with Microsoft Excel, allowing you to export analysis results for further evaluation and comparison of design variants.

Generating Variant-Based Exports

When exporting the LCA results to Excel, you can create multiple variants, each representing a different design iteration or scenario. This allows you to track the changes in GWP as you refine your building design, making it easier to compare the environmental impact of different design decisions.

The exported Excel file includes an overview table that summarises the total mass, volume, and GWP for each variant, as well as the detailed tables from the LCA report. This comprehensive data set provides a solid foundation for further analysis and visualisation.

Leveraging Predefined Excel Templates

To streamline the export process and enhance the presentation of your LCA results, SOFiSTiK provides a set of predefined Excel templates. These templates include pre-built dashboards and visualisations, making it easy to generate professional-looking reports and compare the environmental performance of your design variants.

By utilising these templates, you can quickly generate visually appealing reports that clearly communicate the LCA findings to stakeholders, clients, and project teams, facilitating informed decision-making and driving sustainable design practices.

  • Ability to create and manage multiple design variants in the Excel export
  • Comprehensive data export, including detailed tables and summary overviews
  • Predefined Excel templates for streamlined reporting and visualisation

Creating Custom LCA Tables in the Result Viewer

In addition to the predefined LCA report, the SOFiSTiK ecosystem offers the Result Viewer, a powerful tool that allows you to create custom tables and visualisations for your LCA analysis.

By inserting the LCA Task into the Result Viewer, you can leverage the table assistant to generate predefined tables for the secondary group assessment. These tables provide a detailed breakdown of the GWP contributions by secondary groups, such as cast groups, further enhancing your understanding of the environmental impact of your building design.

The flexibility of the Result Viewer enables you to tailor the LCA tables to your specific needs, allowing you to focus on the most relevant metrics and present the information in a format that aligns with your project requirements and stakeholder preferences.

  • Integration of the LCA Task with the SOFiSTiK Result Viewer
  • Ability to generate custom LCA tables using the table assistant
  • Customisation options to create tailored LCA reporting and visualisation

Conclusion: Embracing Sustainable Design with SOFiSTiK’s LCA Task

The introduction of the Life Cycle Assessment (LCA) Task in SOFiSTiK 2025 marks a significant step forward in the industry’s pursuit of sustainable design practices. By seamlessly integrating this powerful feature into your structural analysis and design workflows, you can gain valuable insights into the environmental impact of your building projects, empowering you to make informed decisions and drive meaningful change.

From leveraging the ÖkoBaudat database for automated material-EPD matching to exploring the comprehensive LCA reporting and export capabilities, the LCA Task in SOFiSTiK provides a robust and user-friendly platform for optimising the sustainability of your designs. By embracing this technology, you can contribute to the broader industry-wide efforts to reduce the carbon footprint of the built environment and create a more sustainable future.