34 Determine the acoustical ceiling components needed to com

34. Determine the acoustical ceiling components needed to complete the West Street Video project given in Appendix G

Solution

ANSWER::

The general Components of Acoustical Ceiling may be enlisted as follows:

1.Grid T Shapes For Ceiling Construction

The most commonly used T shapes are 15/16\" wide; however, 9/16\" wide T shapes are becoming more common. Suspended ceiling are also available in a variety of shapes that offer aesthetic options to the designer. A stepped T shape is often used with regular tiles to provide a more ceiling with more depth. A reveal T shape provides a notch along the length of the grid that makes the T shapes recede more than a typical T shape.

There are two common edge moldings used to terminate a ceiling grid at a wall. The standard shape is the Angle Molding. Also available is a Shadow Molding, which creates a shadow line along the edge of the room.

2.Acoustic Ceiling Tile Materials and Design

There are a large array of designs and textures associated with acoustic ceiling tiles. The majority of these tiles are constructed using mineral fiber, however, other types of materials are also used. Tiles constructed from mineral fiber usually have a favorable NRC (noise reduction coefficient). This makes them an excellent choice for sound absorption to alleviate echo and excess sound in a loud setting. Some of these tiles also have a very high CAC (ceiling attenuation class) which means they impede sound from passing to another floor above the ceiling but these tiles are normally not utilized to prevent sound from entering into another space.

There are a large number of design options and several kinds of material from which to choose. Ceiling tiles may have imprinted designs and different types of textures.

In addition to tile material, there are a wide variety of designs available. Tiles may have a rough appearance or a smooth appearance. Tiles may also have designs imprinted in them or other patterns scored into the tile. Several types of edge options also exist.

3.Seismic Considerations

For acoustic suspended ceilings in seismic zones, special considerations must be made. Some of these considerations include wider edge moldings, limits on size of ceiling or weight of ceiling, additional attachment requirements, additional bracing requirements, and additional inspection requirements.

4.Tile Sizes

Acoustic ceiling tiles are manufactured in a number of standard sizes such as 12 x 12, 12 x 24, 24 x 24, 24 x 72, 30 x 60, 60 x 60, 48 x 48, 20 x 60, 30 x 30, 24 x 48 and more. All sizes are in inches. Custom sizes and shapes are also available in the market.