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A suspended ceiling is a finishing system that hangs below the ceiling structure and can be made of steel grid and acoustic panels. It can be installed over existing drywall, wood framing, or tile finishes and offers advantages such as ventilation and easy access to mechanical equipment. However, it can also yellow over time, require regular replacement, and reduce the overall ceiling height.
A suspended ceiling is a type of finishing system that hangs underneath the ceiling structure within a room or building. It can be suspended from a roof or attic, which consists of structural joists that support loads above and below the deck. Most suspended ceiling systems consist of steel grid and acoustic panels, although other materials can also be used. Metal suspension cables are used to suspend these systems anywhere from three inches to more than a foot (7.6cm to 30.5cm) below the deck.
These ceilings can be installed over existing drywall, exposed wood framing, steel joists, or even tile ceiling finishes. In a typical suspended ceiling system, the tile is supported by thin metal frames that run in a grid pattern across the room. Wall molding is attached to the wall around the entire perimeter of the room. The rest of the grille is suspended from suspension wires, although the ends of each section of the grille rest on the wall molding for extra support.
The grid can be arranged in a 2′ x 4′ (122cm x 61cm) or 2′ x 2′ (61cm x 61cm) pattern based on standard acoustic tile sizes. Recessed fluorescent lighting fixtures are often used with these ceilings and are designed to fit into normal grid patterns. Grilles for heating and cooling can be sold in standard tile sizes so that they can also be inserted into a suspended ceiling grille.
A suspended ceiling offers many advantages over other types of ceiling structures. As it is suspended below the deck, the interstitial space can act as an air plenum for ventilation. This space can also be used to hide pipes, ducts and electrical cables. Because the tiles are easily removable, mechanical and electrical equipment above the ceiling can still be accessed for maintenance and service. Suspended mesh systems are also relatively affordable and can be installed quickly and easily.
There are also a number of potential drawbacks to consider when choosing a countertop. Acoustic tiles tend to yellow over time and can make a room feel dated. They need to be replaced regularly and are prone to staining and damage from moisture or impact. Finally, because they are suspended below the ceiling, they reduce the overall ceiling height within the room. This is often considered unappealing, especially in rooms that already have a relatively low ceiling.
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