b'TORO ALUMINUMMagazine Ads FIGURE 2. LEFTUNSEALED VENTS. MIDDLEVENT DUCTS. RIGHTSEALED VENTS.Retrotec 6000 blower door fan,After completing the preparation workACKNOWLEDGEMENTDM32X gauge and Retrotec Fantasticremediation, another whole building airWe acknowledge Quantum PropertiesPro software were used in this testing. leakage test was completed. The secondfor granting us permission to publish theairtightness test results and their valuable test resulted in a measurement of and professional collaboration within this The test was performed near the end of1.20 L/s/m, which is approximatelyarticle and the broader industry. We also the construction, prior to occupancy,30-per-cent lower than the initial testacknowledge BC Building Science as the when the air barrier system was essen- lead building science consultant retained and was below the intended target. for air barrier commissioning and testing.tially complete. The initial test resulted in a measurement of 1.72 L/s/m2 THE LEADER INat 75 Pa, which was above the intendedWe emphasize the significance of WINDOW WALLSTHE LEADER target. As part of a comprehensive airadhering to ASTM procedures forREFERENCESAND DOORS IN WINDOW barrier commissioning plan, air leakageconducting these tests, and in this case,Emmerich, S. J., Persily, A.K., McDowell, detection was conducted as per ASTMprioritizing the sealing of exhaust ventsT. (2005). Impact of infiltration on E1186-22: Standard Practices for Airfrom the exterior rather than the inte- WALLS AND heating and cooling loads in U.S. office FOR CONDOS, OFFICES AND HOTELSbuildings. Department of Energy, Office Leakage Site Detection in Buildingrior can influence the results. DOORSACROSS NORTH AMERICA. of Building Technologies. Agreement Envelopes and Air Barrier Systems,No. DE-AI01-01EE27615.CURTAIN WALL. WINDOW WALL. RAILINGS. Smoke Tracer Practice. This strategic test preparation adjust- Grot, R. A., Hodgson, A. T., Daisey, J. M., (866) 3207307& Persily, A. (1991). Indoor Air Quality ment is anticipated to yield a moreFOR CONDOS, OFFICES Upon tracing the source of smoke,TOROGROUPOFCOMPANIES.COM AND HOTELS ACROSS controlled measurement of air leakageEvaluation of a New Office Building. ASHRAE Journal, 33(9), 16-25. ISSN 0001-2491.one significant path of air leakage wasthrough the building enclosure byNORTH AMERICA.identified at the exhaust vents. WhileThirakomen, K., & ASHRAE Thailand minimizing additional leakage resultingCURTAIN WALL.Chapter Board of Governors. (2007). the exhaust vents were sealed off fromWINDOW WALL.from test preparation, and specificallyWhy building has to be airtight. In the interior, it seems that pressurizedRAILINGS. air was leaking through the ducts atreducing the influence of the mechan- Proceedings of the 9th Asia-Oceania ical systems. As touched on in this caseSymposium on Fire Science and Technology. (866) 3207307points where proper sealing was notRetrie OGROU m ashraethailand.orgstudy, the implementation of a compre- TOR ved fro POFCOMPANIES.COMwell achieved, leading to leakage paths directly to the exterior. In response tohensive air barrier commissioning this issue, the vents were also sealed onplan is a valuable tool in achieving the the exterior (Figure 2). desired airtightness targets.THE LEADER IN WINDOW WALLS AND DOORSFOR CONDOS, OFFICES AND HOTELS ACROSS NORTH AMERICA.CURTAIN WALL. WINDOW WALL. RAILINGS.(866) 3207307TOROGROUPOFCOMPANIES.COMFALL/WINTER 2023 19Magazine AdTORO 54356 Copyright 2022 Joey Ai. All rights reserved.'