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Maintenance refers to the set of activities carried out to keep a building, its services, and its components in a safe, efficient, and usable condition throughout its life. It includes all technical and administrative actions undertaken to retain or restore a building to a state in which it can perform its required functions. Buildings are constantly exposed to environmental factors such as rain, sunlight, wind, humidity, and temperature variations, as well as human usage and wear and tear. Over time these factors lead to deterioration of structural elements, finishes, and service installations. Maintenance therefore becomes essential to preserve the strength, safety, appearance, and functionality of the building. It may involve routine inspection, repair, replacement of worn parts, cleaning, servicing of equipment, and preventive measures that reduce future damage. Maintenance in buildings can be broadly classified into routine maintenance, preventive maintenance, and corrective maintenance. Routine maintenance involves regular day-to-day activities such as cleaning drains, checking water supply systems, servicing electrical fittings, and painting surfaces. Preventive maintenance refers to planned actions taken in advance to prevent possible defects, such as waterproofing roofs, inspecting plumbing lines, lubricating mechanical parts, and sealing cracks. Corrective maintenance involves repairing defects after they occur, such as fixing leakage, repairing damaged walls, replacing broken doors or windows, and restoring electrical or plumbing systems. The functions of maintenance are closely related to the proper operation and preservation of a building. One of the main functions is inspection. Regular inspection helps in identifying defects, deterioration, or potential problems in the building structure and its services. By carefully examining walls, roofs, floors, drainage systems, electrical wiring, plumbing installations, and other components, maintenance personnel can detect early signs of damage such as cracks, dampness, corrosion, or blockages. Early detection allows timely repair and prevents small problems from becoming major structural issues. Another important function of maintenance is repair ____ ____ __________ _______ ___ _______ ________ _______ ____ ____.
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