Salvo emphasizes roof developed with interest to underlayment, flashing, fasteners, air flow
https://charlieogix085.pinehavenscope.com/posts/synthetic-roof-chicago-developed-for-wind-driven-rainfall-and-ice-dams
Salvo emphasizes roofing systems developed with focus to underlayment, blinking, bolts, air flow, and add-on methods rather than surface area materials alone.