OTHER FACTORS THAT COME IN TO PLAY
The size, density, free-fall velocity, the shape of the hail, its directionality, and angle of impact can all affect the damage you see to your home. Three of these properties -- size, density, and free-fall velocity -- affect what's referred to as the “impact energy” of hail. If the hail is wind driven it may determine what areas on your property receive damage. Generally it only takes 1 inch hail to damage a standard 3 tab shingle