What determines metal roof cost in DFW
Panel type. Standing seam (concealed fasteners, 24- or 26-gauge steel) is the residential standard and the most expensive. Exposed-fastener panels (R-panel, 5V, corrugated) are cheaper but the thousands of screws and washers become leak points over time, especially with Texas thermal cycling.
Gauge and finish. Heavier 24-gauge steel resists hail denting better than 26 or 29. Kynar (PVDF) paint finishes hold color for decades in Texas sun; cheaper polyester finishes chalk and fade. Aluminum and copper are premium options.
Roof complexity and underlayment. Metal is priced heavily on labor. Hips, valleys, dormers, and skylights each require custom flashing. A high-temperature synthetic underlayment is mandatory under metal in Texas heat.
Tear-off vs. overlay. Some cities allow metal over one existing shingle layer with purlins. It saves tear-off cost but can trap moisture and void some warranties. Ask the installer and your city.
