Acoustical ceiling tiles are soundproofing devices installed over the original ceiling to minimize noise and sound. They come in panel or tile form made of starch and mineral wool fiber. They are available in natural, hard plaster, and fiberglass types that can resist fire and scratches. Some acoustical ceiling tiles can be washed and scrubbed to prevent the growth of mildew and molds.
Typical acoustical ceiling tiles have crevices, holes, and fissures that help control sound and noise. As sound travels, it enters these holes and vibrates there instead of in the room’s open space.
Types of Acoustical Ceiling Tiles
Kinds of Acoustical Ceiling Tiles include the following:
Natural acoustical ceiling tiles
Natural acoustical ceiling tiles are made of starch mixed with mineral wool fibers. They are commonly used in living rooms, home theaters, and warehouses. They come in large panels at least two inches deep by two feet long and two feet wide, and are available in a variety of colors.
Hard plaster acoustical ceiling tiles
Hard plaster acoustical ceiling tiles are made of synthetic painted plaster. They are very poor at soundproofing. Hard plaster can only absorb only around 2% of sound energy.
Fiberglass acoustical ceiling tiles
Fiberglass acoustical ceiling tiles are commonly used in ceilings with T-grids. They usually come in three-dimensional panels. Fiberglass has the highest sound absorbency rating. They are extremely flexible and can be molded, cut, and shaped into any desired form.
Choosing Acoustical Ceiling Tiles (Buying tips)
Speech intelligibility index. Choose acoustical ceiling tiles with a high SII if you intend to install them in auditoriums and movie theaters. Choose acoustical ceiling tiles with a lower SII for use in homes and offices where human speech and conversations are vital.
Aesthetic enhancement. Choose acoustical ceiling tiles that can be painted, textured, shaped, and molded to your desired taste. Some acoustical ceiling tiles can be finished with any desired color for purely aesthetic purposes.
Light reflectance value. Look for acoustical ceiling tiles with high Light Reflectance values that allow them to reflect the available light, so you only have to turn on fewer lights in the room. This way, you save on energy