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.
Thickness is as measured by our testers.
Cold impacts is resistance to damage from blows at 0 degree Fahrenheit.
Warm impacts is resistance to damage at roughly 70 degree Fahrenheit. Impacts mimic blows from fallen objects and other mishaps.
Features & Specs - Nichiha Sierra Premium Smooth (primed)
Foam-backed Foam backing that may increase the insulating value of the siding (we did not test for this), but will also afford other aesthetic benefits, like crush resistance.
Longer lengths Available in lengths longer than the typical 12 to 13-foot vinyl siding panel, so it will have less vertical seams on long windowless walls.
Deep profile The front edge extends at least 3/4-inch from the face of the panel providing a wider shadow line and making the siding seem more like real wood.
Double hem Nailing hem is folded over (doubles the thickness of the material) increasing attachment strength and reducing the chances of the siding being blown off the wall by very high winds.