Beyond Traditional Methods: Embracing Ultrasonic Technologies for Air Tightness Testing

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When it comes to ensuring air tightness in buildings, traditional methods have often fallen short in terms of accuracy and efficiency. However, with the advent of ultrasonic testing technologies, a new era of air tightness testing has emerged. In this blog post, we will explore the advantages of ultrasonic technologies over existing methods and highlight the innovative capabilities of Coltraco Products’ Portascanner® AIRTIGHT

in pic: Visual Inspection for Leaks

in pic: Smoke Leakage Testing

Existing Methods: 

  • Visual Inspection: Visual inspection is a common method used to detect air leakage by identifying gaps and cracks. However, it may not be effective in detecting small or hidden leakages, leading to poor energy efficiency. 
  • Smoke Testing: Smoke testing involves introducing smoke or a visible tracer into a building to identify air leakage. While it can be useful in certain situations, it is time-consuming and may not provide accurate results in complex building structures. 
  • Pressure Testing: Pressure testing involves pressurizing the building to measure air tightness. Although it is a recognized method, it requires external pressure and may not capture uncontrolled air leakage or accurately reflect real-world conditions. 
  • Dye Testing: Dye testing uses colored dyes to identify air leakages. While it can be a simple and cost-effective method, it may not detect small or intermittent leaks and does not provide quantitative data. 

Air Tightness Test Banner

Ultrasonic Testing Technologies: 

Ultrasonic testing technologies have revolutionized the way air tightness testing is conducted, offering significant advantages over traditional methods: 

  • Microscopic Accuracy: Ultrasonic technologies can identify air leakages with a microscopic level of accuracy, ensuring even the smallest gaps and cracks are detected for improved energy efficiency. 
  • Quantification and Measurement: Sophisticated algorithms enable precise measurement and quantification of air leakages, providing valuable data for analysis and remedial actions. 
  • Non-Pressurised Testing: Unlike traditional methods, ultrasonic technologies can quantify air leakage without the need for external pressure, allowing for a more accurate reflection of real-world conditions and eliminating the risk of uncontrolled flow during testing. 
  • Comprehensive Reporting: Ultrasonic testing technologies, such as Coltraco Products’ Portascanner® AIRTIGHT, generate detailed reports that comply with building regulations and provide a comprehensive analysis of air tightness, facilitating compliance with energy performance standards. 

in pic: Portascanner® Airtight Main unit in hand

in pic: Portascanner® Airtight Main unit with wand

Among the range of ultrasonic testing technologies available, Coltraco Products’ Portascanner® AIRTIGHT stands out with its exceptional capabilities. This innovative device combines engineering and computer science to provide unmatched air tightness testing and analysis: 

  • Precise Leak Detection: Portascanner® AIRTIGHT can detect and quantify air leakages as small as 0.06mm, ensuring comprehensive identification and analysis of potential energy inefficiencies. 
  • Real-time Results: With Portascanner® AIRTIGHT, air tightness testing can be performed on the same day, providing immediate feedback on the building’s energy performance and enabling prompt remedial actions. 
  • Occupied Building Testing: Unlike traditional methods, Portascanner® AIRTIGHT allows for air tightness testing to be conducted in occupied buildings, minimizing disruption to occupants and ensuring continuous energy efficiency. 
  • Compliance with Building Regulations: Portascanner® AIRTIGHT‘s reports adhere to recognized methods and building control requirements, facilitating compliance with regulatory standards and demonstrating adherence to approved documents. 


Ultrasonic testing technologies have revolutionized the field of air tightness testing by providing unprecedented accuracy and efficiency. Coltraco Products’ Portascanner® AIRTIGHT, with its unique features and capabilities, represents a significant advancement in this domain. By utilizing ultrasonic technologies and the innovative Portascanner® AIRTIGHT, users can benefit from precise leak detection, quantification, and compliance reporting, ultimately enhancing energy efficiency and reducing heating bills. Embracing ultrasonic technologies is the way forward for effective air tightness testing, ensuring buildings meet energy performance standards and improve overall sustainability. 

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Coltraco Ultrasonics
NETPark Research Institute
Joseph Swan Road
TS21 3FB

United Kingdom


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Tel (Sales & HQ): +44 20 7629 8475
Tel (Technical): +44 1740 618 240