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Most Energy Efficient Roofing Materials


Could your roof potentially save you money, last longer and reduce your carbon footprint? This can be possible by using the most energy efficient roofing materials on the market. What is meant by, “energy efficient” is that these products are able to reduce the amount of heat absorbed into your home during the warmer months of the year.

Standard asphalt shingles become incredibly hot during the summer season. This poor efficiency material allows for heat from the sun to be directly absorbed into your roof and transferred into your home. This accumulation of heat will cause your air conditioner unit to run much harder in order to maintain its pre-set temperature. By opting for the most energy efficient roofing materials next time a new roof is needed, one can reduce the amount of energy required to cool a home during the summer.

Two Factors: Reflectance and Emittance

With so many materials on the market, it can be intimidating to decide on the right product to best suit your needs. Energy efficient roofing materials rely on two attributes that translate into energy saving returns. These traits are its reflectance and emittance capabilities. Reflectance is based on a material’s ability to reflect heat from sunlight rather than absorb it. Emittance refers to a materials ability to radiate off its accumulated heat to its surrounding environment. If a roofing product has a high emittance, heat cannot accumulate as well and so the temperature of the roof is substantially reduced. Materials that fall under the Energy Star label require a minimum of 25% (or.25) reflectance rate.

When choosing materials for optimal efficiency, consider these two scales typically shown in percentages or ranked between 0 and 1 (1 being the highest). In terms of material quality, metal roofing has the highest reflectance value and a significantly longer life expectancy than all other options. Though the cost is more upfront, it is the best choice for efficiency and a sound investment.

Energy Efficient Roofing Options

The next best are composite shingles which look similar to asphalt shingles but with higher reflective and emittance capabilities. All composite roofs come in a variety of colors except black. The lighter the color you decide on, the greater your energy savings. One downfall to lighter color is that over time your roof can take on the appearance of being dirty.

Solar is another excellent option. Not only are these thin layers of reflective photovoltaic cells ascetically similar to standard shingles, your roof can start working for you rather than against by converting sunlight into usable electricity for your home. Now that is genuine energy efficiency!

When choosing a roofing material, it is important to keep in mind that higher reflective products will mean less heat absorbed in winter as well which could potentially increase furnace running time. Keep this in in mind so that you choose the right material for your climatic zone.

With a new roof made with the most energy efficient materials available on market, one can experience improved comfort in a cooler home, a smaller environmental impact, a cheaper utility bill each month and a prolonged roof-life due to less heat damage. Your local roofing company will be able to propose the best options for your needs and your budget.

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