Eco / Green Roofing
ECO/Green roofing can come in more than one form.
Eco friendly roofs often refer to solar reflectance (EnergyStar rated) and/or ability to recycle.
Wikipedia defines green roofing as “A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems.”
One criteria for ECO roofing is solar reflectivity. Light colored roofs and metal roofs have a high solar reflectivity and reduce the amount of heating in the building and are Energy Star Rated by the EPA.
Most Asphalt shingle manufacters have a line of “cool” products like GAF https://www.gaf.com/roofing/residential/products/shingles/timberline/cool_series/features.
Cool roofs are explained at https://energy.gov/energysaver/cool-roofs
Most white material like white TPO, PVC and EPDM qualifty of flat roofs. Manufacturers include Carlisle Versico, Firestone, Duro-Last and others.
Karnak and GACO are two lines of Coatings that offer effective alternatives to reroofs on flat roofs. These roofs are typically white and often are EnergyStar compliant. Coatings also have an environmental impact of saving the dumping of torn off roofs into landfills.
Metal by nature of the material reduces heat and most metal roofing qualifies for EPA EnertyStar ratings as being compliant. Metal also has an environmental benefit of being 100% recyclable. Metal roofing is manufactured by companies like Berridge, EDCO Arrowline, Decra, Sheffield Metals, Drexel, Englert, Classic, ABC, MBCI and others.
Concrete tile often exceeds Energy Star requirements. Boral is a local concrete tile that has products that qualify. Reference http://www.boralamerica.com/Roofing/About/boral-roof-tiles-energy-star-performance. Concrete can also be recycled.
Live roofs are also considered a green alternative. Flat Roofs can be designed to support plants and vegetation. Carlisle Versico has a product line https://www.carlislesyntec.com/template.aspx?category=149
Installing EPA EnergyStar rated materials may qualify for tax credits or writeoffs.