Passivhaus Airtightness Solutions and Testing

BlowerDoor · AeroSeal · Leak Detection

Guarantee the airtightness of your Passivhaus projects with our specialised testing, diagnostic and advanced sealing services.

We work with architects, builders and developers seeking to control the n50 value, eliminate infiltration and optimise the building envelope.

  • Tightness tests n50

  • Technical consultancy

  • Airtightness solutions with AeroSeal

  • BlowerDoor equipment for sale and rental

  • Advanced infiltration diagnostics

Request
technical advice

Consultancy

What is included in our
airtightness service

  • testing and airtightness 1

    Tightness tests (BlowerDoor)

    • Preliminary on-site testing

    • Final test for Passivhaus certification

    • Infiltration measurement n50

    • Diagnosis of air leaks

    • Gas retention time tests

  • Testing and airtightness 2

    Diagnosis and optimisation of the envelope

    • Smoke leak detection

    • Infrared thermography

    • Partial pressurisation tests

    • Review of constructive encounters

    • Sealing and envelope improvement plan

  • Testing and airtightness 3

    Technologies of
    advanced sealing

    • AeroSeal 

    • Passivhaus manual seals

    • Treatment of plant crossings

    • Preparation of the building for testing

Benefits

Benefits of our sealing solutions

Testing and airtightness 4

  • Precise control of the n50 value

  • Improved energy efficiency

  • Thermal comfort and air quality

  • Advanced leak detection

  • Preparation for Passivhaus certification

    • Request
    technical consultancy

Work

Who we
work with

  • Passivhaus architects and consultants

  • Specialised construction companies

  • Promoters and developers

  • Self-promoters

  • Energy engineering and consulting firms

We

Our
process

Request
technical consultancy

  • Preliminary analysis

  • On-site diagnosis

  • BlowerDoor Test

  • Location of leaks

  • Sealing and optimisation

  • Final technical report

Request
technical consultancy

Why

Why choose
Zepassiv?

  • Passivhaus airtightness specialists

    Consultants with real experience in certified projects.

  • Advanced technologies

    Application of systems such as AeroBarrier and AeroSeal.

  • Rental of measuring equipment

    Availability of BlowerDoor equipment and diagnostic tools.

  • Advanced trials

    Thermography, smoke, cleanrooms, gas retention time and woodwork permeability.

  • Certification support

    Complete assistance to meet Passivhaus and EnerPHit requirements.

  • International Experience

    Services available in Spain, Portugal and the UK

Portfolio

Some of our
recent projects

Find out how to Zepassiv accompanies professionals on the
development of sustainable projects and Passivhaus certificates.

Airtightness services for Passivhaus projects

Ensure the energy performance of your building with n50 testing, advanced diagnostics and professional sealing solutions.

Request information without obligation

Testimonials

What they say
OUR CLIENTS

  • Amazing technology, difficult to get to work but Great when it is

    Matthew Craig, Home Owner

    UK
  • Read more testimonials

FAQs

Frequent
questions

Do you operate throughout Spain and Latin America?

Yes, we operate throughout Spain and Latin America

What is the difference between manual sealing and AeroBarrier?

AeroBarrier seals invisible leaks and micro-leaks that cannot be detected by hand.

Do you offer BlowerDoor equipment for hire and for sale?

Yes, training is included.

Does AeroBarrier guarantee an airtight seal?

Yes, it allows you to obtain n50 values that meet Passivhaus criteria.

Do you work on Passivhaus and EnerPHit projects?

Yes, we are specialists and we work in the field of certification.