Lesser shingles may tear or blow off when Mother Nature starts to howl, but IKO Dynasty holds on tight. Our oversized Dynasty shingles feature IKO’s ArmourZone®. It’s a 1-1/4” nailing area, made with a tough reinforcing woven band for incredible nail-holding power. In high winds, it helps shingles resist nail pull-through and shingle blow-off so well that they carry a 130 mph (210 km/h) limited wind warranty. In qualifying Dynasty for a Class 3 impact resistance rating,5 * we’ve further elevated the peace of mind that comes from knowing your home and family are well protected against Mother Nature’s fury.