Technical Dinner Sept. 7th: Cold Storage Condensation Challenges and Cures
Note: Our new website is norcaliibec.org
Insulated metal panels (IMP) are often used to form exterior walls of cold-storage buildings. The panels are near perfect vapor barriers. Joints between panels and flashings applied to panels, not so much. When water vapor finds a way in, it condenses on the first surface it contacts below its dewpoint. The condensed water accumulates until it drips inside or forms ice. This presentation will review the results of condensation investigations at several large cold storage buildings to illustrate common water vapor intrusion pathways and some novel repairs techniques to block them.
Our speaker Phil Dregger, PE, of Salas O’Brien, will be sharing his specialized experience on the topic September 7, 2022
Learning Objectives:
1. Understand the non-intuitive hygrothermal physics of cold storage buildings (e.g., cold air sinks).
2. Review common air/water intrusion pathways (e.g., IMP side laps, roof to IMP flashings, IMP penetrations).
3. Discuss how air movement between laps of metal roof deck panels can bypass “vapor dams” above partition walls separating high and low humidity environments inside.
4. Understand how to promote “drying” of condensed water to the inside.
5. Discuss the advantages of using reinforced fluid-applied flashings in lieu of conventional membrane flashings at terminations and transitions.
Networking and Registration 5:30 PM – 6:45 PM | Dinner and Presentation 6:45 PM – 8:15