The Nichiha Sierra Premium Smooth (primed) is part of the Siding test program at Consumer Reports. In our lab tests, Siding models like the Sierra Premium Smooth (primed) are rated on multiple criteria, such as those listed below.
Cold impacts: Cold impacts is resistance to damage from blows at 0 degree Fahrenheit.
Warm impacts: Warm impacts is resistance to damage at roughly 70 degree Fahrenheit. Impacts mimic blows from fallen objects and other mishaps.
Wind: Wind is siding's ability to stay attached in lab tests simulating high winds; the best withstood forces equivalent to more than 150 mph.
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