The cost, durability and energy efficiency of metal and asphalt roofing systems

By Jenny Yu.  

Explore some of the key features that differentiate two of the most popular roofing materials today. 

Every property owner has different goals, budgets and needs when it comes to choosing the roof system that works for them. To help contractors and homeowners make this decision, Sherwin-Williams provides a helpful chart evaluating how metal roofs and asphalt shingles perform across 18 different features. Here is a summary of three of the key features to consider. 

Cost  

Asphalt shingles are definitely the cheaper option upfront. Installation is generally easier and quicker for asphalt shingle roofs, which contributes to its lower cost. Metal roofing comes at a steeper price tag as it requires specialized labor and tools, but it does last longer — 40-70 years compared to 15-20 years for asphalt shingles.  

Weather performance & durability 

Metal outperforms asphalt shingles here, as it can take strong winds, driving rain, hail, ice, high heat and snow. Metal roofs can also be Class A fire-rated while also withstanding winds up to 140 miles per hour. With UL 2218 Class 4 impact resistance, metal roofs can handle heavy hail. Some asphalt shingles are also built to withstand hail, but many are likely to crack or lose granules during severe storms.  

Energy efficiency & environmental impact 

Again, metal has a significant leg up. Metal is recyclable and often made from recycled materials, reflects solar heat and can reduce cooling costs by up to 30% with reflective coatings. Metal roofs are also an ideal platform for solar panels, requiring no roof penetrations.  

Asphalt shingles, on the other hand, contribute 11 million tons of waste to landfills annually. While some asphalt shingles have reflective granules, most absorb heat, thus increasing energy use and cooling costs. Finally, asphalt roofs may require repair or replacement prior to the end of solar panels’ lifespan, making solar panel compatibility less than ideal.  

Learn more about the differences between metal roofing and asphalt shingles!