AQ Group recently completed a project to improve the air quality and energy efficiency of an office building. The work focused on the air supply ducts serving the offices on the second floor.

The project consisted of two steps: first, the air ducts were thoroughly cleaned, then sealed with Aeroseal® technology. This approach improves air quality and reduces energy consumption.

During cleaning, the ducts were carefully cleaned using mechanical brushing techniques and compressed air. Then the air ducts were sealed with Aeroseal®, a technique that seals openings up to 1.5 cm from the inside.

This technique reduced air leakage from 15% to 0.22%, which corresponds to airtightness class D (ATC 2).

The results are evident. Because the system loses virtually no air, the fan of the air handling unit now does not have to run as hard and therefore uses less energy. As a result, CO2 emissions were also significantly reduced. The better air quality creates a healthier work environment, which can help reduce absenteeism. Plants also last longer, which saves money in the long run.

Table airtightness standard

This project shows how new techniques can lead to major improvements in indoor air quality.