Friendswood Roofing: Article About Metal Roofing Fights Global Warming
The best way for homeowners to do their part in lowering their carbon footprint is to reduce their monthly energy usage. During the hot summer, this can be hard to do. While the U.S. Department of Energy suggests that people paint their roofs a light color to reflect the sun's solar heat rays, having Friendswood roofing experts install metal roofs might be the better answer.
While painting roofs light colors will help homeowners lower their energy bills to some extent, metal roofs naturally reflect sunlight regardless of their color. This means that homeowners can have a dark-pigmented metal roof and still reduce their energy costs. It's important to some homeowners to keep their roofs darker because it improves the curb appeal of their residences. Metal roofing is a great way for homeowners to increase their curb appeal in general because it isn't as subject to decay as other roofing materials.
For years, independent research groups such as Oak Ridge National Laboratories have studied metal roofing. ORNL found that any color metal roof has the ability to save homeowners nearly 25 percent on their cooling costs compared to asphalt shingles that are dark gray in color.
Roofers from Brinkmann Quality roofing Services of Friendswood can answer questions about tile roofs or James Hardie siding.
The reduction in energy isn't the result of the coloring of the metal. Rather, it's a result of the reflective nature of metal. Also, metal is a poor thermal insulator, which prevents it from holding onto heat like asphalt shingles do.
ORNL's testing also discovered that homes using a combination of metal roofing and attic ventilation can reduce the amount of heat that penetrates the roofing deck by 45 percent. This reduction in heat was the same for light-colored metal shingles and dark-colored metal panels. The results lead the research firm to believe that the solar reflectance of metal negates the heating penalty that is usually associated with dark-colored roofs.
Another reason metal roofs are better for the environment is because they last longer than asphalt shingles. When they have run their course, asphalt shingles are usually scrapped at landfills. Not only can metal roofing be recycled and reused for other purposes, but it also lasts more than twice as long as asphalt shingles. This prevents landfills from becoming burdened with even more waste. Any time something can be recycled instead of simply being thrown away, fewer natural resources are used. Asphalt shingles sometimes have to be replaced or repaired every 10 to 15 years, but it's not uncommon for metal roofs to last upwards of 50 years.