A Cup of Joe: The Truth Behind Open-joint Cladding


Open-joint cladding systems can be a controversial topic. Although they allow more rain and air into the wall assembly, they actually tend to outperform non-open-joint cladding systems because the increase in air allows for more drying capability.

In this episode of A Cup of Joe, Dr. Joe Lstiburek takes you through the benefits of open-joint cladding systems, as he explains the theory behind how open-joint cladding was first intended and the science behind how it works.

You’ll discover why the concept of open-joint cladding doesn’t work for every project, and what products need to be in place to ensure your building has the protection it needs from water, air, and UV exposure.


About Dr. Joe Lstiburek 

Dr. Joe Lstiburek is the founding principal of Building Science Corporation, one of the most influential, innovative, and respected building science firms in North America. Dr. Lstiburek’s work ranges widely, from providing expert witness testimony to overseeing research and development projects to writing for the ASHRAE Journal. His commitment to advancing the building industry has had a lasting impact on building codes and practices throughout the world, particularly in the areas of air barriers, vapor barriers, and vented and unvented roof assemblies. His commitment to education earned him the hailing, “the dean of North American building science” by the Wall Street Journal. Dr. Lstiburek holds a Bachelor of Applied Science in Mechanical Engineering, a Master of Engineering in Civil Engineering, and a Doctor of Philosophy (Ph.D.) in Building Science. Get the full scope of Dr. Lstiburek’s work, accolades, and contributions to the industry over at Building Science Corporation.


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