IKO Dynasty performance shingles are engineered to resist high winds. They carry a limited high-wind warranty coverage for winds up to 130 mph (210 km/h) and a Class 3 Impact Resistance rating.* They have a standard asphalt coating embedded with blue-green algae-resistant granules that help resist the black streaks and discoloration such algae colonies can cause. Dynasty shingles are manufactured in IKO’s special “Advantage” size and are available in a large selection of high-definition color blends.