Metal Roofing

Metal roofing is a roofing system made from steel, aluminum, copper, or zinc panels or shingles. A metal roof typically lasts 40–70 years, and U.S. installed costs commonly run about $7–$13 per square foot, with premium systems costing more. Metal holds a growing share of home roofing: Metal Roofing Alliance research reported in 2024 put it at roughly 18% of the U.S. residential roofing market, with steel making up about 82% of that. Metal roofs come in standing seam, corrugated or ribbed panel, and metal shingle profiles, and reflective finishes can reduce cooling costs in hot climates.

What are the advantages of metal roofing?

Metal roofs provide numerous benefits, including:

• Durability and Longevity: Typically lasting 40–70 years, metal roofs stand up well to high winds, hail, and heavy snow when properly installed.
• Energy Efficiency: Reflective ("cool") metal finishes reduce heat gain. The EPA reports that cool roofs can cut peak cooling demand in air-conditioned homes by 11–27%.
• Low Maintenance: Resistant to rot and insect damage, metal roofs require less upkeep than traditional materials like shingles or wood shakes.
• Eco-Friendly: According to the Metal Roofing Alliance, an industry group, metal roofing is 100% recyclable at the end of its life and is typically made with at least 25% recycled content.
• Fire and Weather Resistance: Most metal roofing carries a Class A fire rating, the highest. Its smooth surface also sheds snow and resists ice dams.
• Versatility and Aesthetics: Available in many colours, styles, and finishes, including profiles that mimic shingles, slate, tile, and shake.

What are the types of metal roofing materials?

Several types of metal roofing materials are commonly used, each with distinct features and benefits:

Steel Roofing

Steel is durable, cost-effective, and versatile, and it is the most common metal roofing material. It is usually coated for corrosion resistance, either galvanized (zinc-coated, e.g. G90) or Galvalume® (a 55% aluminum-zinc alloy coating). Steel is suitable for both residential and commercial buildings because it is affordable and strong.

Aluminum Roofing

Aluminum is lightweight and highly corrosion-resistant, making it well suited to homes near the coast. It is softer and more prone to denting than steel, and it usually costs somewhat more.

Copper Roofing

Copper roofs offer a distinctive appearance, durability, and corrosion resistance. Copper develops a patina over time and can last over 100 years, though it is the most expensive metal roofing material.

Zinc Roofing

Zinc is self-healing, meaning minor nicks and scratches reseal, and it develops a protective patina. With proper maintenance, zinc can last over 100 years.

What styles and designs are available for metal roofs?

Metal roofs come in diverse styles, each designed for specific aesthetic or functional preferences:

• Standing Seam: Vertical metal panels joined at raised seams and held down by concealed clips, providing excellent weather resistance and a modern look. The building code allows standing seam down to a 1/4:12 slope.
• Metal Shingles or Tiles: Metal panels designed to resemble asphalt shingles, wood shakes, slate, or clay tiles, including stone-coated steel versions.
• Corrugated or Ribbed Metal: Wave-like or ribbed through-fastened panels, commonly used for agricultural buildings, sheds, and industrial-style buildings. Lapped panels like these need at least a 3:12 slope, or 1/2:12 with applied lap sealant.

How is a metal roof installed?

Proper installation is critical to metal roofing performance:

• Metal roof panels must go over a solid or closely fitted deck unless the panel is designed for spaced supports.
• Use proper underlayment and ventilation to prevent moisture and heat buildup.
• Choose fastening and sealant systems specified by the panel manufacturer for water resistance and durability.
• Professional installation is recommended to get the full weather resistance and longevity.

How do you maintain a metal roof?

Metal roofs require minimal maintenance, yet routine care extends their life and performance:

• Inspect fasteners, flashing, and seams periodically to confirm they are sealed. HomeAdvisor recommends a yearly inspection.
• Remove debris and dirt that can hold moisture or corrosive agents, and keep gutters clear for drainage.
• Check for signs of corrosion, particularly in coastal regions.
• Follow any inspection or maintenance conditions in your warranty.

Are metal roofs environmentally friendly?

Metal roofing contributes to environmental sustainability:

• It is highly recyclable, reducing landfill waste.
• Reflective coatings lower energy use and urban heat island effects.
• A long lifespan means fewer replacements and less material consumed.

When should you choose a metal roof?

Metal roofing is an ideal choice under these circumstances:

• Desire for exceptional durability and longevity.
• Prioritizing energy efficiency and sustainability.
• Properties exposed to severe weather or environmental conditions.
• Architectural designs needing sleek, contemporary aesthetics or classic elegance.

Find a Roofing Contractor

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Related Resources

• Residential Roofing
• Commercial Roofing
• Roofing Materials
• Roof Inspection and Maintenance
• Roof Repair vs Replacement
• Flat Roofs
• Sloped Roof
• Cool Roofs
• Green Roofs
• Asphalt Shingles
• Slate Roofing

Quick Comparison: Metal Roofing Materials

Material	Typical Lifespan	Material Cost Range (per sq ft, U.S.)	Best For
Steel (galvanized or Galvalume)	40–70 years	$6–16	Residential, commercial; best all-around value
Aluminum	Close to 50 years without major repairs	$4–11	Coastal and lightweight applications
Copper	100+ years	$15–30	Historic, luxury, architectural accents
Zinc	100+ years with proper maintenance	$6–12	Premium residential, self-healing patina

Costs vary widely by profile (standing seam costs more than corrugated panels), region, and roof complexity. For zinc and copper standing seam, HomeAdvisor lists all-in costs of $25–$35 per square foot. Get written quotes.

Frequently Asked Questions

How much does a metal roof cost?

In the U.S., metal roofing commonly costs about $7–$13 per square foot installed. By style, corrugated panels run about $3.50–$15, metal shingles $7–$22, and standing seam $7–$30. While more expensive upfront than asphalt shingles, the 40–70 year lifespan makes the lifecycle cost competitive.

How long does a metal roof last?

Steel and aluminum metal roofs typically last 40–70 years with minimal maintenance, and copper and zinc can last over 100 years. That is two or more times the 15–30 year life typical of asphalt shingles.

Are metal roofs noisy in rain?

Metal roofs installed over solid sheathing with proper underlayment are not noticeably louder than other roofing materials. The Metal Roofing Alliance states there is little difference between metal and other materials in rain or hail noise. The decking, insulation, and attic space dampen the sound.

Do metal roofs attract lightning?

No. The U.S. National Weather Service says height, pointy shape, and isolation are the dominant factors in where lightning strikes, and the presence of metal makes no difference. Metal roofing is also non-combustible, which is an advantage if a strike does occur.