Metal Roof Energy Savings

A metal roof does not increase the chances of a lightning striking a house though.

Metal roof energy savings.

If your roof meets energy star standards your roof will reflect more of the sun and reduce surface temperatures by up to 100 f. Additional cool roof costs include specialized materials and labor. Cool painted metal roofs retain 95 of their initial reflectance and emittance over time equaling longer lifespan over conventional roofing systems. Major roof costs include upfront installation materials and labor and ongoing maintenance repair recoating and cleaning.

The lightning always strikes the tallest object peak regardless of the material. With metal roofing lightning is never an issue. Cool roofs can save money several ways including energy savings rebates and incentives hvac equipment downsizing and extended roof lifetime. In 2018 and 2019 the residential energy property credit is limited to an overall lifetime credit limit of 500 200 lifetime limit for windows.

This measurement is very important in determining how well metal roofing and its color will work on a roof. You can claim back 10 of the cost up to a maximum of 500. The answer has to do partially with how the roof is installed. A shingle roof also weakens and curls over time making it less of a full proof barrier for the effects of rain wind and other environmental forces and necessitating roof maintenance and earlier replacement.

David martin is troubled by some of the advertising claims he s seen about metal roofing specifically a statement from the metal roofing alliancethat a cool metal roof can save 25 in energy costs compared to a dark grey asphalt shingle. As the demand for energy saving building materials increases metal roofs are installed more often. Metal roofs with pigmented coatings and asphalt roofs with cooling granules will qualify for this. A metal roof acts as a faraday cage and in case of a lightning strike would safely dissipate the electric charge.

Asphalt and metal roofs. A study funded by the u s. The basic unpainted metal roof will reflect more solar radiation than an asphalt roof which absorbs and holds heat. Why do metal roofs save energy.

For homes in warmer climates pre painted or granular coated metal roofing systems reflect solar energy and cool your home by re emitting most of what solar radiation is absorbed. A typical metal roof can last for as many as 50 years which is up to three times longer than any typical asphalt shingle roof. Since more heat is reflected energy bills are lowered. Department of energy and conducted by the oak ridge national laboratory shows why metal roofs promote energy conservation in the home.

Metal roofs on the other hand reflect the sun s heat away from a building leading to energy savings of about 50 percent and they can be about 100 degrees cooler on the surface than traditional asphalt roofs source. Metal roofing utilizing cool colors are known to have energy savings ranging from 7 15 of overall cooling costs.