“Structural engineers always over design things.” I have heard this phrase so many times in my career, primarily from contractors and sometimes clients.  Usually, it is when they are looking at a large beam or a thick piece of steel. Structural engineers often get then reputation that they are too conservative and over design everything.
When a condominium is developed, it is initially owned by the Developer, but at some point, the units are sold, and the number of units owned by the Developer is fewer than those owned by individuals. So, the facility is transitioned from Developer control to Condominium Association control. This process can take months or even years.
There seems to be a fair amount of misunderstanding regarding what the purpose of these materials are and where they are found on a building. First, it is important to note that these materials are just part of a system that makes up a control layer on a building. Each control layer is intended to perform a certain function.