Final answer:
An insulation system with more than 1% asbestos is called asbestos-containing insulation. Asbestos is hazardous and can cause severe health issues upon exposure. Proper handling is crucial to prevent the release of dangerous fibers.
Step-by-step explanation:
An insulation system that contains more than 1% asbestos is referred to as asbestos-containing insulation. Asbestos is a group of naturally occurring mineral fibers that are strong, durable, and resistant to heat and fire, leading to its wide use in a variety of materials, including insulation, construction materials, and friction products like brake linings. The most common types of asbestos include Chrysotile (white), Amosite (brown/off-white), and Crocidolite (blue). However, asbestos is now recognized as a hazardous compound due to its potential to cause serious health problems such as lung cancer, mesothelioma, and asbestosis when its fibers become airborne and are inhaled. Therefore, materials containing this substance must be handled with care to prevent exposure.