OWENS CORNING TRUDEFINITION DURATION SHINGLES RULE! Once again, I’ve got another happy customer who has received the best roof in the business. Remember, I always use synthetic felt, ice guard on all eaves, and super-sealed quadruple layered valleys (ice guard, aluminum flashing, synthetic felt, and shingle overlap). I added a little extra ridge vent as well to aid in proper attic ventilation. Owens Corning TruDefinition Duration shingles carry a LIMITED LIFETIME WARRANTY and a 130 MPH wind rating. Color shown is Colonial Slate. Call for your free estimate: 419-212-3200.