I have always been a fan of Sir Isaac Newton’s Third Law of Motion. A few hundred years ago he said, “For every action there is an equal and opposite reaction.” Many have argued that this law was flawed, but if you expand your vision of the concept, you must recognize it as pure wisdom.
For instance, when new components of building envelope systems are put into play, the intended results are often accompanied by results that are unexpected. What brings this up now is a number of issues being bandied about in the roofing industry related to materials, systems and design.