The reason I ask is because most states consider it a skilled labor but not a trade. I know there are trade schools and states that require a laborious test like Illinois. Anyone have any answers or thoughts as to why?
I think you are nitpicking on this, and the source I am willing to bet is that you’re a roofer and have a strong respect for yourself and the work you do.
Roofing is an understood hard job, and respected trade. The definition comes from the manner in place which classifications are made, and roofing requires limited tools, and has a mastery potential in a term less than 2 years, and that places it into the skilled labor class.
In comparison, Carpentry has a mastery term in excess of 4 years and a vast tool and equipment requirement.
Now does this say roofers are any less than carpenters, no, it says that roofing is more focused and specialized than carpentry which is a broader category that has un specified sub-categories.