Nathan Culley, TBE, CxA, Penn Air Control, Inc. An airtight building envelope is one of the most important contributors to an efficient, comfortable, durable and healthy building. In addition to ...

Last month, we looked at building pressure essentials to help you understand how they affect HVAC systems and customer comfort. If you remember, the building acts like a duct system and HVAC system ...

In my August 2021 column, I introduced the composites building block approach as a step-by-step series of mechanical tests of increasing complexity, coupled with analyses performed at each step, that ...

Fig. 1. Building block approach for composite structures. Photo Credit: Dan Adams Within the context of composites testing, a building block approach is a step-by-step series of mechanical tests of ...