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The Handover Trap: Why Untested Building airtightness testing Envelopes Fail Pre Commissioning
How adopting a proactive two-stage airtightness testing protocol protects contractors against liquidated damages and hidden moisture failures. The Handover Bottleneck: When major commercial and hospitality developments reach 98% completion, the single highest financial threat is failing final environmental handovers (LEED, Mostadam). Defective air barriers buried behind expensive interior finishes cause massive remediation delays, ballooning warranty disputes, and trapped ret
Testing Large Buildings: Multi-Fan Airtightness Testing of a Factory
A Project Case Study: 11 Networked Fans, One Control Software Introduction Testing a house with a single blower door fan is routine. Testing a factory is a different problem. Industrial buildings have huge air volumes, tall roofs, large roller shutters, and long stretches of envelope. One fan simply cannot move enough air to bring a building this size to test pressure. In this article we share how SANA Engineering handled this on a recent project: a large factory tested with
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