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Mineral fiber board, often referred to as mineral wool board or mineral fiber insulation, is a type of building material that is primarily made from inorganic fibers. This material is produced from natural rock or the waste products from industrial processes, such as the glass and steel industries. The primary components of mineral fiber boards include basalt, diabase, or other mineral substances that undergo high-temperature melting processes to create fibers. These fibers are then bonded together using adhesives and other binders to form a dense, rigid board.

5. Energy Efficiency Properly insulated access hatches can contribute to a building's energy efficiency by preventing air leaks and loss of heated or cooled air. This can reduce energy bills and improve comfort for occupants.

A fire-rated ceiling access panel is a device installed in ceilings to provide access to mechanical systems, electrical conduits, and other maintenance areas while maintaining the fire-resistive barrier of the building. These panels are designed not only to be functional but also to meet specific fire safety standards set by regulatory bodies. Typically, they are constructed from materials that can withstand high temperatures and resist the passage of flames and smoke.