In old houses built between the late 1920s and the late 1970s, it is common to find asbestos cladding on boiler pipes and conduits. If your house was built during this period, you may find it even if the house or property has been renovated. If the basement is finished, the asbestos covering may be hidden in the walls and you may not even be aware of it.
As long as asbestos is sealed, it is not harmful to you and your loved ones. However, if you are planning to make renovations or if you need to have your heating, ventilation or air conditioning system repaired or replaced, this is a problem and you will need to remove it.
Identification of asbestos coating on pipes and conduits
The coating is in the form of a paper-like material and has the same characteristics as plaster. In some cases, it looks like a textile that wraps around. In older homes, the conduits and pipes were completely covered with asbestos, while later only the elbows and joints were covered. The asbestos coating can even extend to where the floor vent is located. This poses a greater threat because the fibers can be touched, released into the air and easily inhaled.
Use of asbestos coating
Asbestos was used as insulation to cover pipes and conduits. Due to its heat resistance properties, its insulating efficiency has proven to be very high. Because of the high heat that the pipes and hoses give off, something needed to hold up.
The asbestos coating placed on the outside of the heating ducts is less likely to release fibers into the duct because it creates positive pressure. What is of concern, in fact, is the one who resides in the area where asbestos is present. However, the asbestos coating on the outside of the return ducts poses a greater threat since it creates negative pressure and that, if the duct is damaged, fibers can be released and spread in the house.
In asbestos removal cases, hard asbestos is generally handled according to a certain number of safety procedures (zone signaling, insulation, dust control, protective equipment, etc.) and with a bag-glove method, as well as wetting and cleaning exposed metal surfaces and sealing clean surfaces.