Common Asbestos Building Location
Asbestos products were considered innovated and were often approved by the general public. It was not uncommon to see the building material used in a public or private building. Many positive advantages resulted from the use of the material. Below is a list of applied construction elements that were practiced. The following information was source from various advertisements, EPA fact sheets and studies found on the internet.
a. Asbestos ceiling tiles were used for much of the 20th century until the 1970’s, when the government began issuing warnings and guidelines concerning the use of asbestos products.
b. Asbestos ceiling tiles were typically used in “suspended” or “drop” ceilings, also known as “acoustic” ceilings.
c. Ceiling tiles are lightweight tiles used in buildings for a variety of purposes, including insulation, fire protection, sound absorption, and decoration.
d. Ceiling tiles typically use a type of asbestos called amosite as a fire retardant, as well as another type of asbestos called chrysotile.
a. Insulation has long been associated with asbestos.
b. Those who installed insulation were referred to as “asbestos workers” because the majority of the materials they worked with daily contained the dangerous mineral.
c. Throughout much of the 20th century, asbestos was considered to be a miracle insulator largely due to its innate resistance to heat and fire.
d. Asbestos insulation could can be found wrapped around any number of items or pieces of equipment where heat or fire was a concern including boilers, generators, furnaces, ovens, pipes and electrical wires.
e. Some of the most popular manufacturers of asbestos-containing insulation include Johns-Manville, Owens Corning (now Owens- Illinois), Keasbey and Mattison, Ehret, W.R. Grace and Co., CertainTeed. Many of these companies declared bankruptcy, facing a large amount of asbestos lawsuits from those who worked in their factories or used their products.
Vinyl asbestos tile (VAT)
a. Up until the 1970s, asbestos vinyl floor tiles were often the most common choice of developers and contractors for the construction of new homes because their price per unit was low, they were readily available, and conducted heat poorly, making them ideal insulators.
b. Today, many high schools and higher-education institutions still harbour asbestos floor tiles, oftentimes beneath a thin layer of carpeting.
c. These tiles usually consisted of a mixture of limestone, asbestos, plasticizer, stabilizer, binder, and pigment.
Siding on house
a. Asbestos siding (also called asbestos cement siding) was typically made by adding asbestos (which is a natural fibrous mineral) to Portland cement. This came in a wide variety of sizes, profiles, and textures.
b. Asbestos siding was relatively cheap to manufacture and was very durable and resistant to the elements; it was also easy to clean and paint adhered to it very easily, making maintenance and upkeep costs low.
a. Asbestos roofing tiles were made with Portland cement and asbestos fibers, often with other fibers and materials added.
b. The asbestos cement mixture could be molded and cut to shape. It could be drilled with holes (creating asbestos dust to workers), making it easier to align shingles and design roofs.
c. Roofs covered with asbestos roofing shingles were advertised to last up to 100 years.
d. Asbestos roofing felt was typically installed on flat roofs, such as those on large commercial buildings, institutions and schools. The felt consisted of large sheets of asbestos material painted over with asphalt.
e. Asbestos-cement siding shingles imitated wood siding shingles in shape and appearance, typically available in sizes of twelve by twenty-four inches. These shingles originally came in nondescript tones like gray-green, gray-pink, and Dover white.
a. Acoustical plaster is a type of drywall plaster that is sprayed or otherwise applied to walls to serve as an acoustic barrier.
b. Spackle plaster is used to repair and patch holes in plaster walls. It is also often used as decorative plaster coating on a wall, applied with a trowel and textured.
c. Asbestos was commonly added to plaster for strengthening and used in plaster wallboard and other plaster products. The dust caused be dried pasture, and mixing it caused health effects.
a. Asbestos-cement products were used in a host of applications, which took advantage of its durability, fire resistance, ease in processing, forming, installing, and overall economic benefits.
b. Asbestos-cement was also invaluable for protecting beams, posts, walls, and ceilings, especially in hotel and restaurant kitchens, or places where it was desired to prevent the transmission of heat to adjoining rooms.
c. Demolish projects that involve cement that will be converted to aggregate caused airborne issues from the grinding process.
Electronics in homes
a. The fibers that are used to make electric wiring insulation are very fine and easily inhaled.
b. For people who worked with electric wiring insulation and for those who had asbestos-laden electric wiring insulation in their homes and offices, the risk of asbestos exposure was increased.
a. Primarily used to construct many different products, including pipe insulation. Pipe insulation is a part of the heating and cooling systems in many structures, including public offices and houses.
b. The use of asbestos in pipe insulation is especially detrimental because of the fact that the pipe insulation is a part of the air delivery systems in many buildings.
c. Asbestos fibers are very solid and very threadlike – when they displace into the air, and especially through pipes covered in pipe insulation, they easily drift into the air that we breathe and are readily inhaled.