Asphalt shingle vs standing-seam metal in Central Florida — the real cost differential

Two price ranges in plain numbers

What drives the 2x to 3x differential

1. Material cost: a 24-gauge galvalume coil runs roughly 2-2.5x the cost per square foot of 30-year architectural shingle. Kynar-coated coil rises further, ~2.5-3x.
2. Labor scarcity: standing-seam crews in Orlando book 6-12 weeks out, year-round. Asphalt-shingle crews are commoditized — same-week scheduling is normal. Scarcity + skill premium is roughly 30-40% of the cost differential.
3. Trim and accessories: every roof-to-wall transition in metal needs a custom-bent flashing. A typical single-family home has 6-10 such transitions; on metal, each is $200-$400 of shop-formed flashing. On shingle, the same transitions take $30-$80 of standard step flashing and apron.

What often surprises first-time buyers

• Tear-off rules double the labor on a second re-roof. FBC 1518.2 (under the 7th edition) limits full-system tear-off to one extra layer in most jurisdictions; if your home was shingle-over-shingle in 2010, you're tear-off-of-two-layers today.
• Metal panels over 16 ft long can't be trucked on local roads without oversize permits. This adds nothing to per-home cost, but explains why some bids are sequenced differently: crews will order panel length matching their transport envelope.
• Standing-seam doesn't need replacement in your lifetime. A 2.5x price tag amortized over 50 years is roughly $0.80/sqft/year. Asphalt shingle at half the price amortized over 25 years is roughly $0.85/sqft/year. For a homeowner staying in place, the lifetime math usually favors metal even before counting the wind-mitigation credit.

The insurance-credit adjustment

Post-2024 OIR rule, both qualify for wind-mitigation credits but at different magnitudes:

• Impact-rated shingle (e.g., GAF Timberline HDZ): ~4-15% premium discount.
• Standing-seam metal (mechanically seamed, 24-gauge, ICC-ES-equivalent acceptance): ~12-22% premium discount.

For a $4,200/yr HO-3 policy on a $400,000 home, the discount difference between these two paths over a 30-year policy lifetime runs roughly $10,000 - $25,000 in nominal dollars — a meaningful counterbalance to the upfront gap.

Honest things I don't know

• Your specific home's roof pitch, number of valleys, dormers, and penetrations — every one of these moves the price individually.
• Your insurer's specific wind-mitigation discount table — carriers publish these and they change yearly.

How to verify

• Metal Building Contractors and Erectors Association publishes standing-seam labor-rate regional indexes annually.
• Manufacturer price sheets for 24-gauge galvalume coil are published by ATAS International, Berridge, and others — useful for sanity-checking contractor bid material line items.
• Florida OIR Q4 Annual Report publishes carrier-level wind-mitigation credit participation and average discount amounts.