Loveland Roofing: Article About How Asphalt Shingles Are Made
Asphalt shingles are some of the most affordable and easy to install roofing systems that homeowners can select for their homes. These shingles may be found in two distinct types: organic and fiberglass. Organic materials usually consist of cellulose fibers that are created from waste paper or wood. These fibers are processed into a watery pulp, pressed and dried into sheets, cut into long strips and wound over onto rolls. For years, organic shingles have been used as a primary roofing material until fiberglass shingles were developed. These shingles are usually much thinner and lighter with a higher resistance to damage and fire than their organic varieties. Fiberglass membranes are made when finely ground glass filaments are mixed with water to form a pulp, which is dried and pressed into a sheet. After the right curing, these sheets are sliced to their appropriate widths and installed by Loveland roofing specialists.
In order to make these shingles, a roll of fiberglass matting or organic felt is mounted to be fed into a dry looper. The desired material will pass through a chamber that prepares the material to be dipped in hot asphalt, which coats the fibers and gives the matting its desired appearance and chemical effect. The asphalt is a very thick hydrocarbon substance, and it may be obtained from natural deposits or found as a byproduct of oil refining.
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Before it can be used for the manufacturing process, the asphalt must first be oxidized to cause a chemical reaction. This will soften the asphalt while heating it to the right temperatures in order to create higher quality shingles. To further process, this asphalt is coated with a mineral stabilizer, such as fly ash or ground limestone, to make the material more durable and weather resistant.
After the sheets are coated in the asphalt, different colors of ceramic coating granules are used on top of the shingles to protect them from sunlight and create an attractive finish. These granules can vary from manufacturer to manufacturer, ranging from small rocks to slag particles. Shingles that are made for more humid environments may also have some type of copper granules set with the top coat to prevent algae from growing. The back surface is coated with talc, sand or fine mica to keep the shingles from sticking together during their storage. Once the shingles are ready, strips of thermoplastic adhesives are applied. These are activated when they are heated by the sun, making the final products ready for installation.