Airtightness, Blower Door testing and innovation applied to efficient construction

At CleanFinTech, we combine physics, chemistry, and advanced diagnostics to design more airtight, efficient, and comfortable buildings. Our work combines Blower Door testing, technical consulting on airtightness, and an R&D project on sealants that measurably improves the energy performance of the building envelope.

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Airtightness and Blower Door Testing in Madrid

At CleanFinTech, we specialize in airtightness, one of the most crucial factors for the energy performance of a home or building. Proper sealing of the building envelope guarantees energy efficiency, comfort, and durability, but its quality cannot be taken for granted: it must be measured.

We have developed an innovative methodology that combines Blower Door testing, advanced diagnostics, and sealing solutions applied in the same intervention, whenever feasible. This provides you with your airtightness rating, a clear technical report, and a solid foundation for complying with the Spanish Building Code (CTE DB-HE1) and standards such as Passivhaus.

Stop assuming your building is properly sealed. Verify it with real data and make more informed decisions.

Passive house consulting in Madrid and Mallorca

CleanFinTech is independent of builders, manufacturers, and suppliers. This independence allows us to offer Passivhaus consulting focused on the actual performance of the building, not on product sales.

We support architects, project managers, and developers in:

  • Airtightness strategy and construction details.
  • Project and construction review.
  • Preparation for Passive House certification.

Thanks to our expertise in Blower Door testing and advanced diagnostics, we guarantee that every project meets the highest energy efficiency standards.

We work on new construction and renovations, including single-family homes, residential buildings, industrial buildings, and commercial buildings.

Construction and performance of high-efficiency Passiv buildings

We specialize in technical solutions for highly energy-efficient Passivhaus buildings, aligned with the Passivhaus standard and future requirements of the Spanish Building Code (CTE). Our approach is not merely formal or aesthetic: it focuses on thermal performance, infiltration control, airtightness, and the durability of the building envelope.

A well-designed and properly sealed building envelope reduces heating and cooling demand, improves indoor comfort, and facilitates access to energy efficiency certifications and subsidies.

R&D in airtight sealants

We develop innovative airtightness solutions, validated with Blower Door tests, that optimize energy performance and simplify execution based on technical diagnosis.

  • Improves the airtightness of the building envelope
  • Simplifies on-site installation
  • Increases the durability of the seal
  • Reduces errors, rework, and adjustment time
  • Optimizes results in Blower Door tests
  • Contributes to the overall energy efficiency of the building

Airtightness and Blower Door Testing in Madrid

With over 30 years of experience, at CleanFinTech we combine technical diagnostics, Blower Door testing and applied innovation to become a strategic partner in high energy efficiency and sustainable construction projects.

  • Solid technical foundation: real-world experience in energy, construction, and diagnostics.
  • Measurable methodology: indicators such as n50 and leakage flow rate.
  • Applied approach: on-site validation of each solution.
  • Long-term vision: efficiency, comfort, and alignment with the energy transition.

Frequently asked questions about airtightness, blower doors, and technical consulting

1. What problem do we solve with airtightness?

Poor airtightness leads to uncontrolled air infiltration, increasing energy consumption, worsening indoor comfort, and hindering regulatory compliance. Our Blower Door tests measure actual leaks and propose effective solutions that improve the building’s thermal performance. This ensures efficiency, durability, and sustainability in every project.

2. Why an R&D project on sealants?

Proper sealing is key to achieving good results in a Blower Door test and ensuring the building’s energy efficiency. Our R&D project in airtight sealants seeks more durable, easier-to-apply solutions with improved performance in real-world applications. We validate each advancement with measurable data, thereby improving the execution and overall performance of the system.

3. How is R&D integrated with field services?

We test our sealant developments directly in real-world applications. We measure their impact with Blower Door tests, thermography, and technical diagnostics, refining the product and methodology based on data. This integration ensures a direct link between research, practical application, and continuous improvement in efficient construction projects.

4. Do you only work on single-family homes?

No. At CleanFinTech, we apply our solutions to single-family homes, multi-family buildings, renovations, commercial premises, and even industrial projects. We tailor each airtightness, Passivhaus consulting, and sealing service to the client’s needs, always with a technical approach and measurable results on-site.

5. Why is it important to measure airtightness with real data?

Because no building should be considered efficient without supporting data. With the Blower Door test, we obtain objective figures on the quality of the sealing. This allows us to identify construction errors, optimize thermal comfort, and comply with regulations such as the CTE DB-HE1 or the requirements of the Passivhaus standard.