The shingle brand matters far less than the six steps underneath it.
Down to the deck, inspect every sheet, replace what is bad, re-nail to current code requirements.
Synthetic or self-adhered underlayment, with a secondary water barrier where required for your wind zone.
New drip edge, new valley metal, new pipe boots, new step and counter flashing. Nothing reused.
Nail pattern and count matched to the product approval and the wind zone — commonly six nails per shingle in Florida wind zones.
Balanced intake and exhaust, then a magnet sweep of the property and a final inspection.
O'Brien Contracting — Florida roofing contractor, license CCC1335947. Call (239) 919-4485.