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Metal roofs are known for their exceptional longevity. Depending on the material, a properly installed metal roof can last 40-70 years. Steel roofs typically last 40-60 years, aluminum roofs 50+ years, and copper or zinc roofs can last 75+ years. This is significantly longer than traditional asphalt shingles, which typically need replacement every 15-20 years. According to the Metal Roofing Alliance, metal roofs often last the lifetime of the house.

Metal roofing typically costs 2-3 times more than asphalt shingles for initial installation. However, when considering the total lifecycle cost, metal roofing often proves more economical due to its longevity (40-70 years vs. 15-20 years for asphalt), minimal maintenance requirements, and potential energy savings. Steel roofing generally costs $8-14 per square foot installed, aluminum $9-16, and premium metals like copper can cost $15-25+ per square foot. Many homeowners recoup a portion of this investment through increased home value and reduced energy costs.

This is a common misconception. Modern metal roofing systems installed on residential homes include solid sheathing, insulation, and underlayment that significantly dampen sound. When properly installed, a metal roof is typically only 1-2 decibels louder than an asphalt shingle roof during rainfall. Many homeowners report no noticeable difference in noise levels compared to their previous roofing material. The sound insulation properties of your attic and ceiling construction also play a major role in determining how much exterior noise enters your living space.

No, metal roofs do not attract lightning. According to the Metal Construction Association, metal roofing is no more likely to attract lightning than any other type of roofing material. In fact, metal roofs can be safer during lightning storms because they are non-combustible and can dissipate electrical charges if properly grounded. If lightning does strike a metal roof, the energy is dispersed throughout the structure, reducing the risk of concentrated damage. For additional peace of mind, lightning protection systems can be installed on any home, regardless of roofing material.

There are several metal roofing materials to choose from, each with unique characteristics:

• Steel: Most common and economical option, available in galvanized (zinc-coated) or Galvalume (aluminum-zinc alloy coated) versions for corrosion resistance.
• Aluminum: Lightweight, naturally corrosion-resistant, ideal for coastal areas but more expensive than steel.
• Copper: Premium option with exceptional longevity (100+ years), develops a distinctive patina over time.
• Zinc: Self-healing, low maintenance, develops a protective patina, and can last 100+ years.
• Tin: Rarely used as a standalone material today, often refers to terne (steel coated with tin and zinc alloy).

These materials come in various styles including standing seam, metal shingles, metal tiles, and corrugated panels. The GAF website offers detailed information about different metal roofing options.

Metal roofs are highly energy efficient. They reflect solar radiant heat instead of absorbing it, which can reduce cooling costs by 10-25% according to the Metal Roofing Alliance. Many metal roofing products are ENERGY STAR certified and can qualify for energy efficiency tax credits. Special reflective coatings can further enhance this energy efficiency. Metal roofs also provide excellent insulation value when properly installed with appropriate underlayment and can contribute to a more consistent indoor temperature year-round.