A: An asphalt shingle roof will generally last between 20-30 years.
Architectural shingles normally have a longer life, while 3-tab shingles may have a shorter life.
Some Owens Corning shingles feature optional extended protection for up to 50 years. A full roofing system with insulation, ventilation and a water-proof underlayment, can also help extend the life of your roof.   Check with Northeast Builders on the specifics of the warranty for your roof.