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Announcing our new service “Air Permeability Testing Using Fan Pressurization”
12/03/2025

Announcing our new service “Air Permeability Testing Using Fan Pressurization”

 

At ACTS, we continuously expand our services to provide innovative and precise solutions for the construction industry. We are excited to introduce a new service in our Consultancy Division under Building Envelope Inspection — Air Permeability Testing Using the Fan Pressurization Method.

 

This advanced testing method plays a critical role in assessing the airtightness of buildings, ensuring compliance with energy efficiency standards, and enhancing overall building performance. The test is conducted in accordance with the BS EN ISO 9972 standard, ensuring accuracy and reliability in evaluating a building’s air leakage rate.

 

Why Air Permeability Testing Matters?

Air leakage in buildings can lead to significant energy losses, increased heating and cooling costs, and discomfort for occupants. Conducting an air permeability test allows contractors, developers, and consultants to do the following:

✅ Measure and quantify air leakage through the building envelope.

✅ Identify weaknesses in sealing and insulation.

✅ Ensure compliance with BS EN ISO 9972 and other energy efficiency regulations.

✅ Enhance indoor air quality by minimizing uncontrolled air infiltration.

✅ Optimize energy performance by reducing unnecessary energy consumption.

 

 

 

How the Fan Pressurization Method Works?

The Fan Pressurization Method which is also known as a Blower Door Test is an effective approach to determine the airtightness of a building by simulating real-world conditions.

 

The process involves:

  1. Sealing all intended openings (such as windows, doors, and vents).
  2. Installing a high-powered fan in an external doorway to create a controlled pressure difference.
  3. Measuring the airflow rate required to maintain the pressure difference, which indicates the extent of air leakage.
  4. Analyzing the results to determine whether the building meets regulatory standards for airtightness.

 

Applications and Benefits of the Test
  1. Residential and Commercial Buildings – Ensuring compliance with energy regulations and sustainable building practices.
  2. Renovation and Retrofitting Projects – Identifying air leakage points to improve building performance.
  3. Green Building Certifications – Supporting LEED, BREEAM, and other sustainability certifications.
  4. Construction Quality Assurance – Verifying proper installation of insulation and air barrier systems.

 

ACTS: Your Trusted Partner in Building Inspection

With our expertise in construction materials testing, inspection, and certification, ACTS is committed to providing accurate, standardized, and efficient air permeability testing service. Our highly skilled engineers ensure compliance with international standards and help clients achieve superior energy efficiency and airtight building performance.

 

Need air permeability testing for your project? Contact us today to schedule an assessment and improve the energy efficiency of your buildings.

 

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