If more pressure, time and temperature is applied, the mineral evolution would continue, and new ones would appear. These new minerals are mostly a recrystallization and rearrangement of the old ones, so the resulting rock (slate) has also dull, strong and hard minerals: quartz, mica and chlorite. This transformation implies the dissolution of some of the original minerals and the formation of new ones. Once this clay is buried inside the Earth, it begins its transformation into slate, due to the slow effect of the tectonic forces, which cause an increase in temperature and pressure. These type of sediments are also called pelitic sediments, from the Greek pelos (clay). Our starting material, the clay, is made of no more than quartz, mica and some chlorite, which are hard, dull and common minerals. These clays are the remains of the eroding and wearing of rocks, only the toughest minerals can survive to this cycle. In the picture: renovated roof with natural slate (left), old roof with asbestos (right).Īs you know, roofing slate is formed from clay. Roofing slates do not have asbestos, it is mineralogically, chemically and geologically impossible. There are two ways to give an answer to this concern, the short one and the long one. By taking the necessary precautions, you can help protect yourself and your family from the serious health risks associated with asbestos exposure.For a while now that I hear more and more people asking about the asbestos content of roofing slate. If you suspect that your roof tiles may contain asbestos, it is important to have them tested by a professional and to handle them with care. Always hire a professional contractor who is trained and licensed to handle asbestos safely. It is important to never attempt to remove asbestos roof tiles yourself, as this can release dangerous fibers into the air. However, if the tiles are damaged, cracked or crumbling, they should be removed by a licensed asbestos removal contractor. If the tiles are in good condition and not damaged, it may be safe to leave them in place. If you have asbestos roof tiles, it is important to handle them with care. What should you do if you have asbestos roof tiles? If you suspect that your roof tiles may contain asbestos, you should have them tested by a qualified professional. It is difficult to tell whether roof tiles contain asbestos just by looking at them, as asbestos fibers are often mixed with other materials such as cement. How can you tell if your roof tiles contain asbestos? These fibers can cause serious health problems such as lung cancer, mesothelioma and asbestosis. When asbestos roof tiles are disturbed or damaged, they release microscopic fibers into the air which can be inhaled. They were popular in the UK between the 1930s and 1980s due to their fire-resistant properties and were commonly used on industrial and commercial buildings as well as residential homes. What are asbestos roof tiles?Īsbestos roof tiles are made from a mixture of cement and asbestos fibers. Here's what you need to know about asbestos roof tiles and how to handle them safely. If you live in a property that was built before the year 2000, there is a chance that your roof tiles could contain asbestos. However, as we now know, asbestos is a highly hazardous material that can cause serious health problems when it is disturbed or damaged. Asbestos roof tiles were commonly used in the UK during the 20th century as a fire-resistant and durable roofing material.
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