The longevity of your roof will depend on a number of factors: quality of materials used, quality of the installation, proper ventilation; so it is hard to give a straight answer.
Typical roofs of average quality in Florida last 12-15 years. With Tactical’s peel and stick underlayment and 25 year warranted shingles, our roofs are designed to last, without trying to ‘upsell’ a worthless “50 year warranty” that adds no real value.