Start with available design data
Use early project quantities, assemblies, facade build-ups, glazing assumptions and study periods without waiting for a fully resolved model.
Product
Early-stage whole-life carbon comparison for building and facade design.
CASCA turns the design information you already have into clear option comparisons across embodied carbon, operational energy, comfort risk and benchmark-style whole-life carbon outputs.
Compare alternatives consistently
Review design options on a like-for-like basis so carbon savings can be checked against energy and comfort consequences.
Share clear decision evidence
Use visual results, hotspot charts, module breakdowns and rating-style outputs to support design reviews, research and teaching.
Workflows
Use the level of assessment that matches the design question.
Start with project-scale option comparison, then move into room-scale facade, energy and comfort checks when more detail is needed.
Building workflow
Whole-building option studies
Use the building workflow to build up project-scale components, quantities, assemblies, operational assumptions and reference study period before comparing whole-life carbon results.
- Add element groups and assemblies using the design quantities already available.
- Select practical quantity methods without needing a detailed BIM model.
- Review totals and intensities so options can be compared at project scale.
Room workflow
Facade and comfort trade-offs
Use the room workflow for shoebox-style facade studies. Test glazing, room build-up, orientation and internal gains, then review operational energy, overheating and comfort risk together.
- Test glazing choices, room construction, orientation and internal gains.
- Review weather-based operational energy and thermal comfort outputs together.
- Compare overheating, PMV/PPD comfort and room-scale whole-life carbon in the same study.
Room and facade inputs
Operational energy
Comfort risk
Outputs
Results that make carbon, energy and comfort trade-offs visible.
CASCA keeps outputs visual and comparable, so early-stage decisions can be discussed without turning the page into a dense technical report.
Option comparison
Compare alternatives side by side with clear indicators for carbon, energy and comfort risk.
Operational energy
Review annual and monthly energy use for heating, cooling, electricity and fuel where relevant.
Comfort risk
Use PMV/PPD and overheating checks to avoid selecting lower-carbon options that perform poorly for occupants.
Life-cycle modules
Break embodied carbon into A1-A3, A4-A5, B1-B5 and C1-C4 modules for clearer review.
Carbon hotspots
Identify which element groups or facade decisions are driving the largest share of the result.
Benchmark rating
Use rating bands to communicate whether an option is moving toward the intended whole-life carbon target.
Reporting
Certificate-style output for design reviews.
When the comparison needs to be shared, CASCA can present key assumptions, headline results and benchmark context in a certificate-style output that is easier to review than raw calculation tables.
- Summarises core carbon, energy and comfort results.
- Supports option appraisal and benchmark discussion.
- Useful for project meetings, research studies and teaching exercises.
Use
Built for project work, research and teaching.
Design option appraisal
Use CASCA when facade or building choices need early evidence before the design is locked in.
Research and scenario testing
Compare materials, assemblies, study periods and performance assumptions across repeatable scenarios.
Teaching and carbon literacy
Help students and project teams understand the relationship between specification decisions and whole-life carbon.