Bad weather can strike at any time. So we test our products to better withstand worst-case scenarios: hurricanes, UV rays, snowstorms, and more. But it’s not only extremes that break down siding—the change of seasons does a number on materials such as vinyl (which may crack in the cold) and wood products (which expand and contract with changes in moisture and humidity). Only fiber cement products by James Hardie are Engineered for Climate®.