How Do Various Roofing Materials Affect Energy Efficiency?

by / Friday, 15 July 2022 / Published in Roofing Systems

Making the energy efficient choice in roofing is not as difficult as you might think, say California roofing contractors.

Which Roofing Option is the Most Efficient?

When it comes to the roof replacement on a single family home, there may not seems to be a plethora of options. If you are being energy conscious in your search that narrows the field even more. A great deal of energy is lost through the attic and roofing, so if you are considering new roofing now may be a good time to consider making a choice that could improve the energy efficiency of the whole house. So what roofing materials are the most energy efficient? Let’s explore the options.

Highly Popular, but the Least Efficient Option: Asphalt Shingles

Asphalt shingles are popular for a reason. They are inexpensive and install quickly for that classic watertight seal that keeps the weather out. It does that job, but because of the tar used in the manufacturing of the shingles, they actually absorb heat holding it in and transferring it to the attic space. Another factor is how quickly a material cools off or emissivity. Most people know from experience with roads during the summer that tar and gravel do not cool down quickly once they have been heated. There are improvements that are being made in the industry to asphalt shingles. They now apply a reflective coating that reduces the heat absorption of the shingles. Unfortunately, this cannot be done retroactively.

Classic Old World Style and New World Energy Saving: Clay or Concrete Tiling

Clay tiles have been used for roofing for hundreds of years, and there is a reason they are still around. Not only do their half round shapes create a beautiful wave-like aesthetic, they can also last a lifetime, sometimes upwards of 100 years! Though they are heavy and require a decent support structure, their shape provides pockets that allow for airflow which help carry the heat away.

Why clay and concrete tiles are more energy efficient choice:

  • Natural airflow created through shape and interlocking nature of tiles
  • Emissivity is slightly higher than asphalt and doesn’t absorb as much heat.
  • Lasts 5 to 10 times longer than asphalt shingles.
  • Reflective coating now exists for clay tiles that can be applied post-installation 

The Fabric of a Better Future: Metal Roofing

Metal roofing is the ultimate in residential roofing for energy efficiency. Not only does metal naturally reflect the heat, it lasts as long as clay tiles. Here are the other main points in favor of metal roofs:

  • High Emissivity: It cools down much more quickly than 
  • Price Point: It is less expensive than clay or concrete tile
  • Weight: The weight is comparable to asphalt shingles.
  • Recyclable: Metal can be easily recycled into something new when roof repair is needed

Metal roofing essentially pays for itself over the course of a few years. A homeowner can see as much as 30% savings in energy per month. A utility bill reduced by nearly a third is no laughing matter.

About Modern Method Roofing

Modern Method Roofing proudly serves the people of Napa, CA and the surrounding areas. We offer free estimates and 100% financing is available. Call Modern Method for everything from roof inspection to roof leak repair.

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