Thermal Comfort Analysis in Spain: The Complete Guide for Architects, Developers and Facility Owners
Thermal comfort analysis tells you, before a single brick is laid, whether the people inside your building will feel comfortable, and how much energy it will take to keep them that way. In a country where summer temperatures in Seville and Córdoba regularly pass 40°C, and winters in Burgos or Madrid can be surprisingly cold, getting this right is the difference between a building people love and one they complain about.
At SuperDesignTech, we deliver simulation-driven thermal comfort analysis services in Spain, from early-stage concept design to final compliance reporting. This guide explains what the analysis involves, why it matters under Spanish regulations, and how to choose the right partner.
What Is Thermal Comfort Analysis?
Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment. Six factors drive it: air temperature, radiant temperature, air speed, relative humidity, clothing insulation and metabolic activity. Thermal comfort analysis combines these inputs with your building geometry, materials, glazing, HVAC and occupancy to predict how a space will really perform.
Results are typically expressed as:
- PMV (Predicted Mean Vote): a scale from −3 (cold) to +3 (hot) describing average occupant sensation.
- PPD (Predicted Percentage of Dissatisfied): the share of occupants likely to feel uncomfortable.
- Adaptive comfort limits: for naturally ventilated or mixed-mode buildings, where occupants adapt to outdoor conditions.
- Overheating hours: the number of hours a space exceeds a comfort threshold during the year.
- Draught and asymmetry risk: local discomfort from air movement, cold windows or hot ceilings.
Why Thermal Comfort Analysis Matters in Spain
Spain has one of the most diverse climates in Europe. The CTE divides the country into climate zones from A (mild, coastal south) to E (cold, inland north), and each demands a different design strategy.
| Region | Main challenge | Typical design focus |
|---|---|---|
| Andalucía, Murcia, Valencia | Extreme summer heat, high solar gain | Solar shading, night ventilation, thermal mass, cooling load reduction |
| Madrid, Castilla-La Mancha | Hot summers and cold winters | Balanced envelope, glazing selection, heat recovery |
| Catalonia, Balearic Islands | Humidity, coastal conditions | Humidity control, cross ventilation, passive cooling |
| Basque Country, Galicia, Asturias | Cool, damp climate | Insulation, airtightness, condensation risk |
| Canary Islands | Mild year-round, strong sun | Natural ventilation, adaptive comfort strategies |
Rising temperatures and more frequent heatwaves make this even more urgent. Buildings designed on outdated weather assumptions risk overheating within their own lifetime, which is why we can run analyses using future climate files as well as current ones.
Standards and Regulations We Work To
Our analyses align with the frameworks Spanish authorities, certifiers and clients expect:
- CTE (Código Técnico de la Edificación), DB-HE: energy saving requirements, including limits on energy demand and solar control.
- RITE (Reglamento de Instalaciones Térmicas en los Edificios): indoor design conditions for HVAC systems.
- ISO 7730 and ASHRAE 55: PMV/PPD and adaptive comfort methods.
- EN 16798-1: indoor environmental input parameters for building design and assessment.
- Green building certifications: LEED, BREEAM, VERDE, WELL and Passivhaus, all of which reward or require documented thermal comfort performance.
- EU Energy Performance of Buildings Directive (EPBD): the wider push toward nearly zero-energy buildings.
How We Do It: Dynamic Simulation and CFD
Comfort is not a single number. It varies by room, by hour and by season. We combine two complementary approaches:
1. Dynamic thermal simulation
Using hourly weather data for your exact location, we model heat flows through the envelope, internal gains, solar radiation, ventilation and HVAC operation over a full year. This reveals overheating risk, cooling and heating loads, and the effect of design changes such as shading, glazing or insulation upgrades.
2. CFD (Computational Fluid Dynamics) analysis
Where air movement and temperature distribution matter, such as atriums, open-plan offices, data halls, airports, stadiums, classrooms and industrial halls, CFD shows how air actually flows in 3D. We visualise temperature stratification, velocity, draughts and ventilation effectiveness, so you can place diffusers, openings and equipment with confidence.
Our typical workflow
- Brief and data collection: drawings, BIM/CAD models, HVAC intent, occupancy schedules.
- Model set-up: geometry, materials, climate file and boundary conditions.
- Simulation: baseline case, then design options.
- Comfort assessment: PMV/PPD, adaptive comfort, overheating hours and local discomfort.
- Recommendations: clear, prioritised actions with predicted impact.
- Reporting: documentation suitable for planning, compliance and certification.
Our Thermal Comfort Analysis Services in Spain
- Indoor thermal comfort simulation for residential, commercial and public buildings
- Overheating risk assessment, including future climate scenarios
- CFD analysis of airflow, temperature and ventilation performance
- Outdoor thermal comfort for plazas, terraces, courtyards and urban spaces (wind, sun, UTCI)
- HVAC design validation and diffuser layout optimisation
- Natural and mixed-mode ventilation studies
- Façade and shading optimisation for solar control
- Certification support for LEED, BREEAM, VERDE, WELL and Passivhaus
- Retrofit studies to improve comfort in existing buildings
Sectors and Cities We Serve
Sectors: offices and workplaces, hotels and resorts, hospitals and healthcare, schools and universities, residential developments, retail and shopping centres, data centres, industrial and logistics facilities, sports and event venues, and transport hubs.
Locations: we support projects throughout Spain, including Madrid, Barcelona, Valencia, Seville, Málaga, Bilbao, Zaragoza, Alicante, Murcia, Palma de Mallorca, Las Palmas and Santa Cruz de Tenerife. Our workflow is digital, so distance is never a barrier, and we can coordinate in English with your Spanish-speaking design team.
How to Choose a Thermal Comfort Analysis Provider in Spain
When comparing consultants, ask these questions:
- Do they understand Spanish climate zones and regulations (CTE, RITE), not just generic international standards?
- Can they do both dynamic simulation and CFD, so you are not forced to use two vendors?
- Do they use local, validated weather data, including future climate scenarios?
- Will they give actionable design advice, not just a report full of charts?
- Can they support your certification goals and answer assessor queries?
- How clear are timelines and deliverables before the project starts?
SuperDesignTech is built around these priorities: engineering rigour, practical recommendations and responsive communication.
Need Thermal Comfort Analysis in Spain?
Tell us about your project and we will propose the right scope, timeline and deliverables.
Request a Free ConsultationFrequently Asked Questions
What is thermal comfort analysis?
It is a simulation-based assessment that predicts whether occupants will feel comfortable in a space, using standards such as ISO 7730, ASHRAE 55 and EN 16798-1 and metrics like PMV and PPD.
Is thermal comfort analysis required in Spain?
The CTE and RITE set requirements for energy performance and indoor conditions, and comfort analysis helps demonstrate compliance. It is also commonly required for certifications such as LEED, BREEAM, VERDE and WELL.
What is the difference between thermal simulation and CFD?
Dynamic thermal simulation models heat flows across a whole building over a year. CFD zooms into a space to show detailed 3D airflow and temperature patterns. Many projects benefit from both.
How long does a thermal comfort study take?
Most studies take one to four weeks, depending on building size, model complexity and whether CFD is included.
Can you analyse existing buildings?
Yes. We assess existing buildings, identify the causes of discomfort and test retrofit options such as shading, insulation, ventilation changes and HVAC adjustments.
Do you work outside the major cities?
Yes. We serve projects across mainland Spain, the Balearic Islands and the Canary Islands.
Final Thoughts
Comfortable buildings are healthier, more productive and cheaper to run. With Spain's demanding climate and evolving regulations, thermal comfort analysis is now a core part of good design, not an optional extra. Whether you are designing a new hotel in Málaga, an office in Madrid or a school in Valencia, SuperDesignTech can help you get it right from day one.
Contact SuperDesignTech to discuss your thermal comfort analysis project in Spain.
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