Many metal roofs that you can buy today are made with a significant percentage of recycled metal.
Metal roof energy savings.
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.
Cool painted metal roofs retain 95 of their initial reflectance and emittance over time equaling longer lifespan over conventional roofing systems.
A study funded by the u s.
David martin is troubled by some of the advertising claims he s seen about metal roofing specifically a statement from the metal roofing alliance that a cool metal roof can save 25 in energy costs compared to a dark grey asphalt shingle.
Since more heat is reflected energy bills are lowered.
His roof qualified for the federal energy efficiency tax credit.
Metal roofing utilizing cool colors are known to have energy savings ranging from 7 15 of overall cooling costs.
Why do metal roofs save energy.
Department of energy and conducted by the oak ridge national laboratory shows why metal roofs promote energy conservation in the home.
What s more after a metal roof has served its purpose it can be recycled further.
The secret to metal roofing s energy savings is in its variety of finishes.
In fact metal roofing is a major contributor to the steel and metal recycling market.
A six month energy study from an indiana homeowner here is a six month study of the energy savings of a cool metal roof as presented by a homeowner from a moderate climate in indiana after his new energy efficient metal roof was installed in early 2011.
The answer has to do partially with how the roof is installed.
Metal roofs use more recycled material.
Old refrigerators dishwashers cars and other machines are used to make at least a quarter of a metal roof.