One Roof Maxx treatment adds five years of life to your asphalt shingles at a fraction of the cost of a new roof. We can treat your roof two more times (every 5 years) adding an additional 15+ years of life to your old roof. Our roof rejuvenation treatment works on roofs aged 6-30 years old. The application process takes about an hour and has been performed on over 50 million square feet of shingles across America. Call us today for a FREE roof assessment to see if your roof qualifies for a Roof.