Quantifying Air Leakage using the Ultrasonic Leak Detection Tool
IIBEC – Canadian Prairies is hosting a Lunch ‘n Learn talk on “Quantifying Air Leakage using the Ultrasonic Leak Detection Tool”.
Are you an IIBEC Canadian Prairies Chapter Member? The 2022 IIBEC AGM will be held immediately following this education event. Stick around to hear about our plans for 2023. Special guests include IIBEC CEO Brian Pallasch, and IIBEC Region VI Director, Burt Carver.
Join us for an IN PERSON talk, on Quantifying Air Leakage using the Ultrasonic Leak Detection Tool. Event will be held at the Calgary Construction Association in the Legacy Room.
*NEW* – A virtual ticket to this education event is now available. Access via Microsoft Teams will be sent to the email you registered with following your purchase. Any questions? Please contact firstname.lastname@example.org
Overview: Mira will discuss how advancements in commercially available ultrasonic detectors now allow for hand held devices that can be tuned to record sound intensity, in decibels, in a specific frequency range. By deploying an ultrasonic emitter at a constant decibel level with a recording device positioned on the exterior of the building, one is able to create a unique profile of ultrasound penetrating an envelope assembly. The ultrasound intensity penetrating the envelope can be shown to correlate to the air leakage rate established using the ASTM E783 test procedure.
Learning Objective 1 – While this technology has existed for some time, most ultrasonic emitter / detector combinations lack tuning and recording capabilities. For this reason, ultrasonics has to date been employed as a qualitative test for envelope air tightness.
Learning Objective 2 – Review a completed case study using the Sonaphone ultrasonic detector. This tool is one of the few available instruments that can digitally record ultrasound intensity at a specific frequency. Testing was completed on approximately 150 spandrel panels installed on a recently completed and operational office building. Following ultrasonic testing, these results were ‘calibrated’ through determining the rate of air leakage on 10 of the spandrels in this sample. When the results were combined, a unique relationship emerged between sound intensity escaping the envelope and air leakage rate. This test allowed the authors to determine, to a 90% confidence, whether the air leakage rate through spandrels at the building was within specifications for the building at the time of construction.
Learning Objective 3 – Commissioning of air barrier systems in completed buildings is difficult to complete on a wide scale. Pass / fail tests using tracer smoke are common in the industry but these tests can’t establish the rate of air leakage. Most air barriers are imperfect and Building Codes reflect this by allowing for nominal air leakage.
This talk is being presented by Mira Saba. This Lunch ‘n Learn is good for 1 CEH.
About the presenter:
After four years on the Dean’s List and one year of internship, Mira graduated from the University of Calgary with a Bachelor of Science in Civil Engineering. She has gained valuable experience on building envelope and structural restoration projects with RJC, providing design and analysis, contract administration, and field review. The structures Mira has assessed or designed details for have included concrete parking decks, curtain wall-glazed high-rise towers, a historic aqueduct, and many more buildings with varying envelope assemblies.
Mira is experienced with building envelope testing methods, including air tightness, water penetration, and smoke pencil testing of glazing assemblies. She contributes a scientific perspective to her work and has co-authored a paper on a methodology for airtightness testing using ultrasonic tools.
*** If you require proof of attendance certificate, please email IIBEC.CPC@gmail.com following event attendance. Include event name and first/last name in email body. ***