Can a Simple Rooftop Support Be “Engineered”?

Can a Simple Rooftop Support Be “Engineered”?   Rooftop supports for pipes and HVAC equipment come in a variety of shapes and sizes, and, of course, prices.  Some feature a base made of recycled rubber and a metal top for supporting pipes or struts.  Some are simple one-piece units composed of molded plastic, some are [...]