Soy beans are of no use to any living person or animal.  They are POISON.  It's too bad more farmers aren't out plowing up their soybean fields and getting rid of this crap instead of having it made into "oil" and added to every food on the market.  Just start reading labels if you don't believe me.  If you're not buying organic foods, you're getting soy oil in absolutely everything you buy.  Of course it's not listed on meat labels but you can be sure those animals were fed soy beans.  Ewwwwwwww.

https://www.westernjournal.com/huge-explosion-iowa-plant-causes-fire-numerous-injuries/

And the old shingles likely still contained a banned substance:  asbestos which has supposedly been "banned" for several decades now.  It hasn't been, you know that and I know that.  It's cheap to use and so they still use it.  Imagine that.