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Asphalt shingles on a home in Avalon, New Jersey. Two types of base materials are used to make asphalt shingles, organic and fiberglass.Both are made in a similar manner, with an asphalt-saturated base covered on one or both sides with asphalt or modified-asphalt, the exposed surface impregnated with slate, schist, quartz, vitrified brick, stone, [6] or ceramic granules, and the under-side ...
Recycling can be carried out on various raw materials. Recycling is an important part of creating more sustainable economies , reducing the cost and environmental impact of raw materials. Not all materials are easily recycled, and processing recyclable into the correct waste stream requires considerable energy.
Asphalt including asphalt shingle can be melted down and in part recycled. Tarmac can also be recycled and there is now an active market for recycling tarmac in the developed world. [ 1 ] This includes tarmac scalpings produced when roads are scarified before a new surface is laid.
Tacoma uses recycled asphalt products (RAP) to improve streets, Jenkins said. Of the 12,000 tons of asphalt produced in 2023, some 1,200 tons were created with RAP, produced with asphalt grindings ...
The Owens Corning Roofing and Asphalt Shingle Recycling Program was launched in 2009 to keep shingles out of landfills. [37] In 2013, Constellation Energy built a 2.7-megawatt solar power system at an Owens Corning insulation plant in Delmar, New York. The power system, which is leased to Owens Corning, can produce 3.3 million kilowatt hours of ...
The two most common recycled materials that contain bitumen are reclaimed asphalt pavement (RAP) and reclaimed asphalt shingles (RAS). RAP is recycled at a greater rate than any other material in the United States, [108] and typically contains approximately 5–6% bitumen binder. Asphalt shingles typically contain 20–40% bitumen binder. [109]
Old asphalt and base materials are pulverized using a specialized machine called a reclaimer. On top of the pulverized material, water is added to reach the optimal moisture content for compaction and then a variety of materials, such as dry cement, lime, fly ash, or asphalt emulsion are incorporated for stabilization. A reclaimer is used again ...
In 2007, GAF merged with Elk Corporation, a manufacturer of asphalt felts and coatings. [11] In 2011, GAF became the first roofing manufacturer to offer a Lifetime Limited Warranty on all laminated shingles. [5] [6] GAF Energy, a sister company which offers affordable integrated rooftop solar options, was launched in 2019. [12]