Ask Todd Miller *Metal Roofing Expert

#27 – The Energy Efficiency of Metal Roofing

Written by Todd Miller on March 31, 2017 | Filed under: Metal Roofing 101 Series, Roofing Help Videos

If you’re thinking of a new roof for your home, it’s important to consider energy efficiency. Choosing a roof that will reduce your home’s energy costs is a huge ongoing benefit. Metal roofs offer energy efficiency in three ways and the important thing is that all of these ways are long lasting – they do not diminish with age. The first way is the very little thermal mass that metal has. Roofing materials such as asphalt and tile will collect and store heat during the day and continue to radiate it into the structure below even after the sun has gone down. Metal roofs, on the other hand, lose any gained heat very quickly once the sun sets or goes behind a cloud or even when a gentle breeze blows across them. Next, many of today’s metal roofs feature heat reflective coatings. Even in dark colors, these coatings reflect radiant heat. Products with these coatings are listed by Energy Star and have been eligible for tax credits and utility company incentives. Finally, if you choose a metal shingle roof that had an integral airspace between the metal and your roof’s decking lumber, conductive heat transfer is blocked as well. This thermal break acts a lot like the dead air space between two panes of glass in a thermal pane window. In fact, we have energy studies showing brown metal shingles keeping the attic space cooler than highly reflective white standing seam. This is all due to how the metal shingles are formed to stand up off of the roof deck. The energy efficiency of a metal roof commonly reduces summer electric costs by up to 20% and often even more. If you want to make a lasting impact on your home utility costs, an energy efficient metal roof can be very wise.


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About Todd

Todd's expertise comes from his years of experience in metal roofing manufacturing. As president of Isaiah Industries, based in Piqua Ohio, Todd runs a several of the world’s leading manufacturers of residential metal roofing; Classic Metal Roofing Systems, Kassel & Irons, and Green American Home. His personal goal is to educate homeowners of the long-life benefits of metal roofing.

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