Quik-Shield spray foam roof systems fair better in extreme weather, including hail, high winds, and falling debris. A post-Hurricane Katrina study conducted by NIST concluded that all spray foam roofs, with one minor exception sustained the hurricane without blow-off of the spray foam or damage to flashings. Quik-Shield maintains this strength and durability while still weighing less than conventional roofs, typically by 50%. Quik-Shield spray foam on a metal deck maxed out the Miami-Dade wind uplift test at over 500 mph.