Metal Roofing Systems Overview
- Standing seam (hidden fastener): The premium residential metal system. Vertical panels with raised seams that clip together, hiding fasteners. Most durable, lowest maintenance, highest cost ($300-$700/sq installed). Brands: McElroy Metal, Englert, Drexel Metals, Metal Sales, ATAS, and others.
- Exposed fastener panels: More common in agricultural and commercial applications, sometimes used residentially for lower cost. Brands: Union Corrugating, Fabral, Metal Sales. Lower upfront cost but fastener maintenance required.
- Metal shingles: Stamped steel or aluminum shingles that mimic the look of asphalt, wood shake, or slate. Brands: Gerard Roofing, Classic Metal Roofing Systems, Decra. Mid-range cost, good appearance, easier installation on complex roofs than standing seam.
Key Specifications to Compare
| System Type | Typical Cost/sq | Lifespan | Wind Rating |
|---|---|---|---|
| Standing seam (steel) | $350-$700 | 40-70 years | 130+ mph |
| Standing seam (aluminum) | $400-$750 | 40-70 years | 130+ mph |
| Metal shingles | $250-$450 | 30-50 years | 120-140 mph |
| Exposed fastener panels | $150-$250 | 25-40 years (with maintenance) | Varies |
Costs are installed estimates and vary significantly by region and contractor.
What to Ask a Metal Roofing Contractor
- Is this a standing seam system or exposed fastener?
- What gauge (thickness) of steel or aluminum is being used?
- What is the coating system? (Kynar 500/PVDF fluoropolymer coatings are the premium standard)
- What are the paint/coating warranty terms?
- Does the contractor have specific training and experience with this manufacturer's product?
- Is this a tear-off and replacement or an overlay?
Related: Metal Roofing Guide
Frequently Asked Questions
Is metal roofing worth the cost over asphalt?
For long-term homeowners, the math often works. Standing seam metal roofing typically costs 3-5x more than standard asphalt shingles installed, but it lasts 40-70 years compared to 20-25 for standard shingles. Over two asphalt replacement cycles, the total cost of ownership can be comparable or better for metal. Additional benefits: lower maintenance, better snow shedding, fire resistance, and in most climates, Class A or Class B fire ratings. For homeowners planning to sell within 10 years, the premium rarely returns in sale price.
What is the difference between standing seam and exposed fastener metal?
Standing seam metal panels connect at concealed seams -- the fasteners are hidden under the seam cap and never exposed to weather. This is the premium system: no fasteners to seal, no fastener holes that can leak. Exposed fastener panels (often called screw-down panels) use visible screws with rubber washer seals. These seals can deteriorate over 10-20 years and may need replacement or re-sealing. Exposed fastener systems are less expensive but have a shorter effective maintenance-free period.
Can metal roofing be installed over existing shingles?
In some cases yes, using a strapping system. Metal roofing over existing shingles eliminates tear-off costs and adds some insulation value. The tradeoff: you cannot inspect or repair the deck below, and any existing deck moisture problems are sealed under the metal. Most metal roofing contractors recommend tear-off for a clean, inspected deck, especially for premium standing seam systems.
Find a Contractor in Your City
Metal roofing specifications, pricing, and warranties vary significantly by manufacturer, product, and installation method. Get detailed quotes from contractors with specific metal roofing experience.