Metal vs Asphalt Roofing
The two most popular residential roofing materials compared on cost, lifespan, energy efficiency, and long-term value.
| Factor | Metal Roofing | Asphalt Shingles |
|---|---|---|
| Cost per Sq Ft | $7–$14 | $3–$6 |
| Lifespan | 40–70 years | 15–30 years |
| Durability | Excellent (resists cracking, shrinking) | Good (can crack, curl, blow off) |
| Energy Efficiency | Reflects solar heat, lowers cooling costs 10–25% | Absorbs heat, less efficient |
| Weight | 1–1.5 lbs per sq ft | 2–4 lbs per sq ft |
| Wind Resistance | 110–160 mph | 60–130 mph |
| Fire Rating | Class A (non-combustible) | Class A–C (varies by type) |
| Noise | Louder during rain/hail without insulation | Quieter (absorbs sound) |
| DIY Friendliness | Difficult (specialized tools, heavy panels) | Moderate (familiar process) |
| Resale Value | High (premium perception, longevity) | Standard |
| Maintenance | Very low (inspect fasteners occasionally) | Moderate (replace damaged shingles, check flashing) |
Cost Comparison
Asphalt shingles win on upfront cost by a wide margin. For a typical 2,000 sq ft roof, asphalt materials run $3,000–$6,000 vs $7,000–$14,000 for metal. However, metal roofing lasts 2–3 times longer than asphalt, so the per-year cost is often lower. When you factor in energy savings of 10–25% on cooling bills, reduced maintenance, and fewer replacements over the life of your home, metal roofing can actually be the more economical choice over 40+ years.
Metal Roofing: Pros & Cons
Pros
- Lifespan of 40–70 years with minimal maintenance
- Reflects solar heat, reducing cooling costs 10–25%
- Class A fire rating (non-combustible)
- Wind resistance up to 160 mph
- Lightweight — can install over existing roof
- 100% recyclable at end of life
Cons
- 2–3x the upfront cost of asphalt
- Louder during rain and hail without proper insulation
- Can dent from large hail or fallen branches
- Difficult DIY installation (specialized skills needed)
- Fewer contractor options in some areas
- Expansion and contraction can loosen fasteners over time
Asphalt Shingles: Pros & Cons
Pros
- Lowest upfront cost for residential roofing
- Easy to find qualified installers everywhere
- Wide variety of colors and styles
- Quieter during rain and storms
- Simpler repairs — replace individual shingles
- Familiar material for DIY-capable homeowners
Cons
- Shorter lifespan (15–30 years)
- Absorbs heat, increasing cooling costs
- Vulnerable to wind uplift and storm damage
- Can crack, curl, and lose granules over time
- Requires more frequent maintenance and inspections
- Ends up in landfills (not easily recyclable)
Which Should You Choose?
Choose Metal Roofing If:
- You plan to stay in your home for 20+ years
- You live in an area with extreme weather (high winds, wildfires)
- Energy efficiency and lower cooling bills are priorities
- You want a "roof it once" solution with minimal upkeep
- You're willing to invest more upfront for long-term savings
Choose Asphalt Shingles If:
- Budget is tight and upfront cost is the deciding factor
- You plan to sell the home within 10–15 years
- You want a straightforward DIY roofing project
- You live in a moderate climate without extreme weather
- You prefer a traditional look that blends with the neighborhood
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For homeowners who plan to stay in their home long-term, metal roofing is often worth it. While it costs 2–3x more upfront than asphalt, it lasts 40–70 years vs 15–30 years for shingles. You also save on energy bills (10–25% lower cooling costs), require fewer repairs, and avoid paying for a second roof replacement. Over a 50-year period, metal can be cheaper than replacing asphalt shingles twice.
Yes, in many cases metal roofing can be installed directly over one layer of existing asphalt shingles, which saves the cost and labor of tear-off. However, check local building codes first — some jurisdictions require tear-off. It's also important to inspect the existing roof deck for rot or damage before installing over old shingles, and proper battens or furring strips should be used to create an air gap.
Without proper insulation, a metal roof can be noticeably louder during heavy rain or hail compared to asphalt shingles. However, with standard attic insulation and a solid plywood or OSB deck beneath the metal panels, noise levels are comparable to other roofing types. Many homeowners report that once insulation is in place, they barely notice rain noise from inside the home.
No, metal roofs do not attract lightning. Lightning strikes the highest point in an area regardless of material. In fact, metal roofing is actually safer during a lightning strike because it is non-combustible and will not catch fire, unlike wood shakes or certain other materials. Metal roofing also disperses the energy of a strike across the entire surface.
Standard 3-tab asphalt shingles last 15–20 years, while architectural shingles last 25–30 years. Metal roofing, by comparison, lasts 40–70 years depending on the type (standing seam lasts longest). This means you may need to replace an asphalt roof 2–3 times in the same period that a single metal roof would still be performing well.